Navigating the intricacies of Buick vehicles and their diagnostic challenges? You’re in the right place. In this post, we’ll explore an extensive list of Diagnostic Trouble Codes (DTCs) specific to Buick automobiles.
DTC Manufacturer Specific Codes
DTC P1001 Buick – EVAP Purge Valve – Output From Control Module Low
DTC P1002 Buick – EVAP Purge Valve – Output From Control Module High
DTC P1005 Buick – Fuel Level Sensor Control Module Too Many Resets
DTC P1010 Buick – Engine Coolant Flow Control Valve Position Sensor Exceeded Minimum Learning Limit
DTC P1015 Buick – Reductant Control Module Sensor Serial Communication Circuit Low Voltage
DTC P1020 Buick – Injector Control Circuit
DTC P1021 Buick – Auxiliary Injector 1 Control Circuit
DTC P1022 Buick – Auxiliary Injector 2 Control Circuit
DTC P1023 Buick – Auxiliary Injector 2 Control Circuit
DTC P1024 Buick – Auxiliary Injector 4 Control Circuit
DTC P1025 Buick – Auxiliary Injector 5 Control Circuit
DTC P1026 Buick – Auxiliary Injector 6 Control Circuit
DTC P1031 Buick – HO2S Heater Current Monitor Control Circuit Sensors 1
DTC P1032 Buick – HO2S Heater Warm Up Control Circuit Sensors 1
DTC P1105 Buick – Secondary Vacuum Sensor Circuit
DTC P1106 Buick – MAP Sensor Circuit Intermittent High Voltage
DTC P1107 Buick – MAP Sensor Circuit Intermittent Low Voltage
DTC P1108 Buick – BARO To MAP Sensor Circuit Comparison Too High
DTC P1109 Buick – Secondary Port Throttle System
DTC P1111 Buick – Intake Air Temperature (IAT) Sensor Circuit Intermittent High Voltage
DTC P1112 Buick – Intake Air Temperature (IAT) Sensor Circuit Intermittent Low Voltage
DTC P1113 Buick – Intake Resonance Switchover Valve Circuit
DTC P1114 Buick – Engine Coolant Temperature (ECT) Sensor Circuit Intermittent Low Voltage
DTC P1115 Buick – Engine Coolant Temperature (ECT) Sensor Circuit Intermittent High Voltage
DTC P1116 Buick – ECT Signal Unstable Or Intermittent
DTC P1117 Buick – Engine Coolant Temp Signal Out-Of-Range Low
DTC P1118 Buick – Engine Coolant Temp Signal Out-Of Range High
DTC P1119 Buick – ECT Signal Out Of Rage With TFT Sensor
DTC P1120 Buick – Throttle Position (TP) Sensor 1 Circuit
DTC P1121 Buick – TP Sensor Circuit Intermittent High Voltage
DTC P1122 Buick – TP Sensor Circuit Intermittent Low Voltage
DTC P1125 Buick – Accelerator Pedal Position (APP) System
DTC P1130 Buick – HO2S Circuit Low Variance Bank 1 Sensor 1
DTC P1131 Buick – HO2S Circuit Low Variance Bank 1 Sensor 2
DTC P1132 Buick – H02S Circuit Low Variance Bank 2 Sensor 1
DTC P1133 Buick – HO2S Insufficient Switching
DTC P1134 Buick – HO2S Transition Time Ratio
DTC P1135 Buick – HO2S Lean Average Bank 1 Sensor 1
DTC P1136 Buick – HO2S Rich Average Bank 1 Sensor 1
DTC P1137 Buick – HO2S Bank 1 Sensor 2 Lean Or Low Voltage
DTC P1138 Buick – HO2S Bank 1 Sensor 2 Rich Or High Voltage
DTC P1139 Buick – HO2S Insufficient Switching Bank 1 Sensor 2
DTC P1140 Buick – HO2S Transition Time Ratio Bank 1 Sensor 2
DTC P1141 Buick – HO2S Bank 1 Sensor 2 Average Voltage Level
DTC P1143 Buick – HO2S Bank 1 Sensor 3 Lean Or Low Voltage
DTC P1144 Buick – HO2S Bank 1 Sensor 3 Rich Or High Voltage
DTC P1145 Buick – HO2S Cross Counts Bank 1 Sensor 3
DTC P1153 Buick – HO2S Insufficient Switching
DTC P1154 Buick – HO2S Transition Time Ratio
DTC P1155 Buick – HO2S Lean Average Bank 2 Sensor 1
DTC P1156 Buick – HO2S Rich Average Bank 2 Sensor 1
DTC P1157 Buick – HO2S Bank 2 Sensor 2 Lean System Or Low Voltage
DTC P1158 Buick – HO2S Bank 2 Sensor 2 Rich Or High Voltage
DTC P1159 Buick – HO2S Cross Counts Bank 2 Sensor 2
DTC P1161 Buick – HO2S Heater Power Stage Circuit Bank 2 Sensor 2
DTC P1163 Buick – HO2S Bank 2 Sensor 3 Lean System Or Low Voltage
DTC P1164 Buick – HO2S Bank 2 Sensor 3 Rich Or High Voltage
DTC P1165 Buick – HO2S Cross Counts Bank 2 Sensor 2
DTC P1170 Buick – Bank To Bank Fuel Trim Offset
DTC P1171 Buick – Fuel System Lean During Acceleration
DTC P1185 Buick – Engine Oil Temperature Circuit
DTC P1186 Buick – EOT Circuit Performance
DTC P1187 Buick – EOT Sensor Circuit Low Voltage
DTC P1188 Buick – EOT Sensor Circuit High Voltage
DTC P1189 Buick – Engine Oil Pressure Switch Circuit
DTC P1190 Buick – Engine Vacuum Leak
DTC P1191 Buick – Intake Air Duct Air Leak
DTC P1200 Buick – Injector Control Circuit
DTC P1201 Buick – (Alternative Fuel) Gas Mass Sensor Circuit Range/Performance
DTC P1202 Buick – (Alternative Fuel) Gas Mass Sensor Circuit Low Frequency
DTC P1203 Buick – (Alternative Fuel) Gas Mass Sensor Circuit High Frequency
DTC P1211 Buick – Mass Air Flow Circuit Intermittent High
DTC P1212 Buick – Mass Air Flow Circuit Intermittent Low –
DTC P1214 Buick – Injection Pump Timing Offset
DTC P1215 Buick – Ground Fault Detection Indicated
DTC P1216 Buick – Fuel Solenoid Response Time Too Short
DTC P1217 Buick – Fuel Solenoid Response Time Too Long
DTC P1218 Buick – Injection Pump Calibration Circuit
DTC P1219 Buick – Throttle Position Sensor Refernce Voltage
DTC P1220 Buick – Throttle Position (TP) Sensor 2 Circuit
DTC P1221 Buick – Throttle Position (TP) Sensor 1- 2 Correlation
DTC P1222 Buick – Injector Control Circuit Intermittent
DTC P1225 Buick – Injector Circuit Cylinder 2 Intermittent
DTC P1228 Buick – Injector Circuit Cylinder 3 Intermittent
DTC P1231 Buick – Injector Circuit Cylinder 4 Intermittent
DTC P1234 Buick – Injector Circuit Cylinder 5 Intermittent
DTC P1237 Buick – Injector Circuit Cylinder 6 Intermittent
DTC P1240 Buick – Injector Circuit Cylinder 7 Intermittent
DTC P1243 Buick – Injector Circuit Cylinder 8 Intermittent
DTC P1245 Buick – Intake Plenum Switchover Valve
DTC P1250 Buick – Early Fuel Evaporation Heater Circuit
DTC P1257 Buick – Supercharger System Over boost
DTC P1258 Buick – Engine Coolant Over temperature – Protection Mode Active
DTC P1260 Buick – Last Test Failed SCC Or Theft Detected, Vehicle Immobilized
DTC P1270 Buick – Accelerator Pedal Position Sensor A/D Converter Error
DTC P1271 Buick – APP Sensor 1-2 Performance
DTC P1272 Buick – Accelerator Pedal Position Sensor 2
DTC P1273 Buick – Accelerator Pedal Position Sensor 1
DTC P1274 Buick – Injectors Wired Incorrectly
DTC P1275 Buick – Accelerator Pedal Position (APP) Sensor 1 Circuit
DTC P1276 Buick – Accelerator Pedal Position (APP) Sensor 1 Performance
DTC P1277 Buick – Accelerator Pedal Position Sensor 1 Circuit Low Voltage
DTC P1278 Buick – Accelerator Pedal Position Sensor 1 Circuit High Voltage
DTC P1280 Buick – Accelerator Pedal Position (APP) Sensor 2 Circuit
DTC P1281 Buick – Accelerator Pedal Position (APP) Sensor 2 Performance
DTC P1282 Buick – Accelerator Pedal Position Sensor 2 Circuit Low Voltage
DTC P1283 Buick – Accelerator Pedal Position Sensor 2 Circuit High Voltage
DTC P1285 Buick – Accelerator Pedal Position (APP) Sensor 3 Circuit
DTC P1286 Buick – Accelerator Pedal Position (APP) Sensor 3 Performance
DTC P1287 Buick – Accelerator Pedal Position Sensor 3 Circuit Low Voltage
DTC P1288 Buick – Accelerator Pedal Position Sensor 3 Circuit High Voltage
DTC P1300 Buick – Ignition Circuit
DTC P1305 Buick – Ignition Coil 2 Primary Feedback Circuit
DTC P1310 Buick – Ignition Coil 3 Primary Feedback Circuit
DTC P1315 Buick – Ignition Coil 4 Primary Feedback Circuit
DTC P1320 Buick – IC Module 4X Ref Circuit Intermittent, No Pulses
DTC P1321 Buick – Electronic Ignition System Fault Line
DTC P1322 Buick – EI System Or Ignition Control Missing
DTC P1323 Buick – 24X Reference Circuit Low Frequency
DTC P1324 Buick – Crank RPM Too Low
DTC P1335 Buick – CKP Circuit
DTC P1336 Buick – Crankshaft Position (CKP) System Variation Not Learned
DTC P1345 Buick – CKP/CMP Correlation
DTC P1346 Buick – Intake Camshaft Position (CMP) Sensor System Performance
DTC P1350 Buick – Ignition Control System
DTC P1351 Buick – IC Circuit High Voltage
DTC P1352 Buick – IC Output High/Pulse Detected When Grounded Cyl.2
DTC P1353 Buick – IC Output High/Pulse Detected When Grounded Cyl.3
DTC P1354 Buick – IC Output High/Pulse Detected When Grounded Cyl.4
DTC P1355 Buick – IC Output High/Pulse Detected When Grounded Cyl.5
DTC P1356 Buick – IC Output High/Pulse Detected When Grounded Cyl.6
DTC P1357 Buick – IC Output High/Pulse Detected When Grounded Cyl.7
DTC P1358 Buick – IC Output High/Pulse Detected When Grounded Cyl.8
DTC P1359 Buick – Ignition Control Circuit Group A
DTC P1360 Buick – Ignition Control Circuit Group B
DTC P1361 Buick – IC Circuit Low Voltage
DTC P1362 Buick – IC Cylinder 2 Not Toggling After Enable
DTC P1363 Buick – IC Cylinder 3 Not Toggling After Enable
DTC P1364 Buick – IC Cylinder 4 Not Toggling After Enable
DTC P1365 Buick – IC Cylinder 5 Not Toggling After Enable
DTC P1366 Buick – IC Cylinder 6 Not Toggling After Enable
DTC P1367 Buick – IC Cylinder 7 Not Toggling After Enable
DTC P1368 Buick – IC Cylinder 8 Not Toggling After Enable
DTC P1370 Buick – IC Module 4X Reference Circuit, Too Many Pulses
DTC P1371 Buick – DI Low Resolution Circuit
DTC P1372 Buick – Crankshaft Position Sensor Circuit Performance
DTC P1374 Buick – 3X Reference Circuit
DTC P1375 Buick – 24X Reference Circuit High Voltage
DTC P1376 Buick – Ignition Ground Circuit
DTC P1377 Buick – IC Module CAM Pulse To 4X Reference Pulse Comparison
DTC P1380 Buick – Misfire Detected – Rough Road Data Not Available
DTC P1381 Buick – Misfire Detected – No Communication with Brake Control Module
DTC P1390 Buick – Wheel Speed Sensor 1, G-Sensor Circuit
DTC P1391 Buick – Wheel Speed Sensor 1, G-Sensor Circuit Performance
DTC P1392 Buick – Wheel Speed Sensor 1, G-Sensor Circuit Low Voltage
DTC P1393 Buick – Wheel Speed Sensor 1, G-Sensor Circuit High Voltage
DTC P1394 Buick – Wheel Speed Sensor 1, G-Sensor Circuit Intermittent
DTC P1395 Buick – Wheel Speed Sensor 2, G-Sensor Circuit
DTC P1396 Buick – Wheel Speed Sensor 2, G-Sensor Circuit Performance
DTC P1397 Buick – Wheel Speed Sensor 2, G-Sensor Circuit Low Voltage
DTC P1398 Buick – Wheel Speed Sensor 2, G-Sensor Circuit High Voltage
DTC P1399 Buick – Wheel Speed Sensor 2, G-Sensor Circuit Intermittent
DTC P1403 Buick – Exhaust Gas Recirculation System Valve 1
DTC P1404 Buick – Exhaust Gas Recirculation System Valve 2
DTC P1405 Buick – Exhaust Gas Recirculation System Valve 3
DTC P1406 Buick – EGR Valve Pintle Position Circuit
DTC P1407 Buick – EGR Air Intrusion In Exhaust Supply To EGR Valve
DTC P1408 Buick – Intake Manifold Pressure Sensor Circuit
DTC P1409 Buick – EGR Vacuum System Leak
DTC P1410 Buick – Fuel Tank Pressure System
DTC P1415 Buick – Secondary Air Injection (AIR) System
DTC P1416 Buick – AIR System Bank 1
DTC P1418 Buick – Secondary Air Injection System Relay A Control Circuit High
DTC P1420 Buick – Intake Air Low Pressure Switch Circuit Low Voltage
DTC P1421 Buick – Intake Air Low Pressure Switch Circuit High Voltage
DTC P1423 Buick – Intake Air High Pressure Switch Circuit High Voltage
DTC P1431 Buick – Fuel Level Sensor 2 Performance
DTC P1432 Buick – Fuel Level Sensor 2 Circuit Low Voltage
DTC P1433 Buick – Fuel Level Sensor 2 Circuit High Voltage
DTC P1441 Buick – Evaporative Emission (EVAP) System Flow During Non-Purge
DTC P1442 Buick – EVAP Vacuum Switch High Voltage During Ignition On
DTC P1450 Buick – Barometric Pressure Sensor Circuit
DTC P1451 Buick – Barometric Pressure Sensor Performance
DTC P1460 Buick – Cooling Fan Control System
DTC P1480 Buick – Cooling Fan 1 Control Circuit High
DTC P1483 Buick – Engine Cooling System Performance
DTC P1500 Buick – Starter Signal Circuit
DTC P1501 Buick – Vehicle Speed Sensor Circuit Intermittent
DTC P1502 Buick – Theft Deterrent System – No Password Received
DTC P1503 Buick – Theft Deterrent System – Password Incorrect
DTC P1504 Buick – Vehicle Speed Output Circuit
DTC P1508 Buick – IAC System Low RPM
DTC P1509 Buick – IAC System High RPM
DTC P1510 Buick – Back UP Power Supply
DTC P1511 Buick – Throttle Control System-Backup System Performance
DTC P1514 Buick – Throttle Body Performance
DTC P1515 Buick – Control Module Throttle Actuator Position Performance
DTC P1516 Buick – Throttle Actuator Control (TAC) Module Throttle Actuator Position Performance
DTC P1517 Buick – Throttle Actuator Control (TAC) Module Performance
DTC P1518 Buick – Throttle Actuator Control (TAC) Module Serial Data Circuit
DTC P1519 Buick – Electronic Throttle Module Low Volts Communication Disable
DTC P1520 Buick – Gear Indicator System
DTC P1521 Buick – Transmission Engaged At High Throttle Angle
DTC P1522 Buick – Park/Neutral To Drive/Reverse At High RPM
DTC P1523 Buick – Electronic Throttle Control Throttle Return
DTC P1524 Buick – TP Sensor Learned CI, Throttle Angle Out Of Range
DTC P1525 Buick – Throttle Body Service Required
DTC P1526 Buick – TP Sensor Learn Not Complete
DTC P1527 Buick – Transmission Range/Pressure Switch Comparison
DTC P1528 Buick – Governor
DTC P1529 Buick – Heated Windshield Request Problem
DTC P1530 Buick – Ignition Timing Adjustment Switch Circuit
DTC P1531 Buick – A/C Low Side Temperature Sensor Fault
DTC P1532 Buick – A/C Evaporator Temperature Sensor Circuit Low Voltage
DTC P1533 Buick – A/C Evaporator Temperature Sensor Circuit High Voltage
DTC P1534 Buick – A/C High Side Temperature Sensor Low Voltage
DTC P1535 Buick – A/C High Side Temperature Sensor Circuit
DTC P1536 Buick – A/C System – ECT Over temperature
DTC P1537 Buick – A/C Request Circuit Low Voltage
DTC P1538 Buick – A/C request Circuit High Voltage
DTC P1539 Buick – Air Conditioning (A/C) Clutch Feedback Circuit High Voltage
DTC P1540 Buick – A/C System High Pressure
DTC P1541 Buick – A/C High Side Over Temperature
DTC P1542 Buick – A/C System High Pressure High Temperature
DTC P1543 Buick – A/C System Performance
DTC P1544 Buick – A/C Refrigerant Condition Very Low
DTC P1545 Buick – A/C Clutch Relay Control Circuit
DTC P1546 Buick – Air Conditioning (A/C) Clutch Feedback Circuit Low Voltage
DTC P1547 Buick – A/C System Performance Degraded
DTC P1548 Buick – A/C Recirculation Circuit
DTC P1554 Buick – Cruise Engaged Circuit High Voltage
DTC P1555 Buick – Electronic Variable Orifice Output
DTC P1558 Buick – Cruise Control Servo Indicates Low
DTC P1559 Buick – Cruise Control Power Mangement Mode
DTC P1560 Buick – Cruise Control System-Transaxle Not In Drive
DTC P1561 Buick – Cruise Vent Solenoid
DTC P1562 Buick – Cruise Vacuum Solenoid
DTC P1563 Buick – Cruise Vehicle Speed/Set Speed Difference Too High
DTC P1564 Buick – Cruise Control System – Vehicle Accel Too High
DTC P1565 Buick – Cruise Servo Position Sensor
DTC P1566 Buick – Cruise Control System-Engine RPM Too High
DTC P1567 Buick – Cruise Control System-Active Braking Control Active
DTC P1568 Buick – Cruise Servo Stroke Greater Than Commanded In Cruise
DTC P1569 Buick – Cruise Servo Stroke High While Not In Cruise
DTC P1570 Buick – Cruise Control System-Traction Control Active
DTC P1571 Buick – TCS PWM Circuit No Frequency
DTC P1572 Buick – ASR Active Circuit Low Too Long
DTC P1573 Buick – PCM/EBTCM Serial Data Circuit
DTC P1574 Buick – Stop lamp Switch Circuit
DTC P1575 Buick – Extended Travel Brake Switch Circuit
DTC P1576 Buick – BBV Sensor Circuit High Voltage
DTC P1577 Buick – BBV Sensor Circuit Low Voltage
DTC P1578 Buick – BBV Sensor Circuit Low Vacuum
DTC P1579 Buick – P/N To D/R At High Throttle Angle
DTC P1580 Buick – Cruise Move Circuit Low Voltage
DTC P1581 Buick – Cruise Move Circuit High Voltage
DTC P1582 Buick – Cruise Direction Circuit Low Voltage
DTC P1583 Buick – Cruise Direction Circuit High Volume
DTC P1584 Buick – Cruise Control Disabled
DTC P1585 Buick – Cruise Inhibit Control Circuit
DTC P1586 Buick – Cruise Control Brake Switch 2 Circuit
DTC P1587 Buick – Cruise Control Clutch Control Circuit Low
DTC P1588 Buick – Cruise Control Clutch Control Circuit High
DTC P1599 Buick – Engine Stall Or Near Stall Detected
DTC P1600 Buick – PCM Battery
DTC P1601 Buick – Serial Communication Problem With Devise 1
DTC P1602 Buick – Loss Of EBTCM Serial Data
DTC P1603 Buick – Loss Of SDM Serial Data
DTC P1604 Buick – Loss Of IPC Serial Data
DTC P1605 Buick – Loss OF HVAX Serial Data
DTC P1606 Buick – Serial Communication Problem With Device 6
DTC P1607 Buick – Serial Communication Problem With Devise 7
DTC P1608 Buick – Serial Communication Problem With Device 8
DTC P1609 Buick – Loss Of TCS Serial Data
DTC P1610 Buick – Loss Of PZM Serial Data
DTC P1611 Buick – Loss Of CVRTD Serial Data
DTC P1612 Buick – Loss OF IPM Serial Data
DTC P1613 Buick – Loss Of DIM Serial Data
DTC P1614 Buick – Loss Of RIM Serial Data
DTC P1615 Buick – Loss Of VTD Serial Data
DTC P1617 Buick – Engine Oil Level Switch Circuit
DTC P1619 Buick – Engine Oil Life Monitor Reset Circuit
DTC P1620 Buick – Low Coolant Circuit
DTC P1621 Buick – PCM Memory Performance
DTC P1622 Buick – Cylinder Select
DTC P1623 Buick – Transmission Temp Pull-Up Resistor
DTC P1624 Buick – Customer Snapshot Data Available
DTC P1625 Buick – PCM System Reset
DTC P1626 Buick – Theft Deterrent Fuel Enable Signal Lost
DTC P1627 Buick – A/D Performance
DTC P1628 Buick – ECT Pull-Up Resistor
DTC P1629 Buick – Theft Deterrent System-Cranking Signal
DTC P1630 Buick – Theft Deterrent Learn Mode Active
DTC P1631 Buick – Theft Deterrent Start Enable Signal Not Correct
DTC P1632 Buick – Theft Deterrent System-Fuel Disabled
DTC P1633 Buick – Ignition Supply Power Circuit Low Voltage
DTC P1634 Buick – Ignition 1 Power Circuit Low Voltage
DTC P1635 Buick – 5 Volt Reference 1 Circuit
DTC P1636 Buick – PCM Stack Overrun
DTC P1637 Buick – Generator L-Terminal Circuit
DTC P1638 Buick – Generator F-Terminal Circuit
DTC P1639 Buick – 5 Volt Reference 2 Circuit
DTC P1640 Buick – Driver 1-Input High Voltage
DTC P1641 Buick – FC Relay 1 Control Circuit
DTC P1642 Buick – FC Relay 2 And 3 Control Circuit
DTC P1643 Buick – Engine Speed Output Circuit
DTC P1644 Buick – TP Output Circuit
DTC P1645 Buick – EVAP Solenoid Output Circuit
DTC P1646 Buick – Driver 1 Line 6
DTC P1647 Buick – Driver 1 Line 7
DTC P1650 Buick – Driver 2-Input High Voltage
DTC P1651 Buick – Fan 1 Relay Control Circuit
DTC P1652 Buick – Powertrain Induced Chassis Pitch Output Circuit
DTC P1653 Buick – Oil Level Lamp Control Circuit
DTC P1654 Buick – Service Throttle Soon Lamp Control Circuit
DTC P1655 Buick – EVAP Purge Solenoid Control Circuit
DTC P1656 Buick – Driver 2 Line 6
DTC P1657 Buick – 1-4 Upshift Solenoid Control Circuit
DTC P1658 Buick – Starter Enable Relay Control Circuit
DTC P1660 Buick – Cooling Fans Control Circuit
DTC P1661 Buick – MIL Control Circuit
DTC P1662 Buick – Cruise Control Inhibit Control Circuit
DTC P1663 Buick – Oil Life Lamp Control Circuit
DTC P1664 Buick – 1-4 Upshift Lamp Control Circuit
DTC P1665 Buick – Driver 3 Line 5
DTC P1666 Buick – Driver 3 Line 6
DTC P1667 Buick – Reverse Inhibit Solenoid Control Circuit
DTC P1669 Buick – ABS Unit Expected
DTC P1670 Buick – Driver 4
DTC P1671 Buick – Driver 4 Line 1
DTC P1672 Buick – Low Engine Oil Level Lamp Control Circuit
DTC P1673 Buick – Engine Hot Lamp Control Circuit
DTC P1674 Buick – Tachometer Control Circuit
DTC P1675 Buick – EVAP Vent Solenoid Control Circuit
DTC P1676 Buick – Driver 4 Line 6
DTC P1677 Buick – Driver 4 Line 7
DTC P1680 Buick – Driver 5
DTC P1681 Buick – Driver 5 Line 1
DTC P1682 Buick – Driver 5 Line 2
DTC P1683 Buick – Driver 5 Line 3
DTC P1684 Buick – Driver 5 Line 4
DTC P1685 Buick – Driver 5 Line 5
DTC P1686 Buick – Driver 5 Line 6
DTC P1687 Buick – Driver 5 Line 7
DTC P1689 Buick – Delivered Torque Circuit Fault
DTC P1690 Buick – ECM Loop Overrun
DTC P1691 Buick – Coolant Gage Circuit Low Voltage
DTC P1692 Buick – Coolant Gage Circuit High Voltage
DTC P1693 Buick – Tachometer Circuit Low Voltage
DTC P1694 Buick – Tachometer Circuit High Voltage
DTC P1695 Buick – Remote Keyless Entry Circuit Low
DTC P1696 Buick – Remote Keyless Entry Voltage High
DTC P1700 Buick – Transmission MIL Request
DTC P1701 Buick – Transmission MIL Request Circuit
DTC P1705 Buick – P/N Signal Output Circuit
DTC P1740 Buick – Transmission Torque Reduction Request Circuit
DTC P1743 Buick – TP Signal From ECM
DTC P1760 Buick – ECM Supply Voltage Interrupted
DTC P1779 Buick – Engine Torque Delivered To TCM Signal
DTC P1780 Buick – Park/Neutral Position (PNP) Switch Circuit Engine Torque Signal Circuit
DTC P1790 Buick – Transmission Control Module Checksum
DTC P1791 Buick – Transmission Control Module Loop
DTC P1792 Buick – Transmission Control Module Reprogrammable Memory
DTC P1793 Buick – Transmission control Module Stack Overrun
DTC P1795 Buick – CAN Bus-Throttle Body Position
DTC P1800 Buick – TCM Power Control Relay Circuit Open
DTC P1801 Buick – Performance Selector Switch Failure
DTC P1804 Buick – Ground Control Relay
DTC P1810 Buick – TFP Valve Position Switch Circuit
DTC P1811 Buick – Maximum Adapt And Long Shift
DTC P1812 Buick – Transmission Over Temperature Condition
DTC P1813 Buick – Torque Control
DTC P1814 Buick – Torque Converter Overstressed
DTC P1815 Buick – Transmission Range Switch-Start In Wrong Range
DTC P1816 Buick – TFP Valve Position Switch-Park/Neutral With Drive Ratio
DTC P1817 Buick – TFP Valve Position Switch-Reverse With Drive Ratio
DTC P1818 Buick – TFP Valve Position Switch-Drive Without Drive Ratio
DTC P1819 Buick – Internal Mode Switch No Start, Wrong Range
DTC P1820 Buick – Internal Mode Switch Circuit A Low
DTC P1822 Buick – Internal Mode Switch Circuit B High
DTC P1823 Buick – Internal Mode Switch Circuit P Low
DTC P1825 Buick – Internal Mode Switch Illegal Range
DTC P1826 Buick – Internal Mode Switch Circuit C High
DTC P1831 Buick – PC Solenoid Power Circuit Low Voltage
DTC P1833 Buick – A/T Solenoids Power Circuit Low Voltage
DTC P1835 Buick – Kick-Down Switch
DTC P1836 Buick – Kick-Down Switch Failed Open
DTC P1837 Buick – Kick-Down Switch Failed Short
DTC P1842 Buick – 1-2 Shift Solenoid Circuit Low Voltage
DTC P1843 Buick – 1-2 Shift Solenoid Circuit High Voltage
DTC P1844 Buick – Torque Reduction Signal Circuit Desired By TCM
DTC P1845 Buick – Transmission Gear Ratio Output Circuit
DTC P1847 Buick – 2-3 Shift Solenoid Circuit High Voltage
DTC P1850 Buick – Brake Band Apply Solenoid Circuit
DTC P1851 Buick – Brake Band Apply Solenoid Performance
DTC P1852 Buick – Brake Band Apply Solenoid Low Voltage
DTC P1853 Buick – Brake Band Apply Solenoid High Voltage
DTC P1860 Buick – TCC PWM Solenoid Circuit Electrical
DTC P1864 Buick – Torque Converter Clutch Circuit
DTC P1868 Buick – Transmission Fluid Life
DTC P1870 Buick – Transmission Component Slipping
DTC P1871 Buick – Undefined Gear Ratio
DTC P1873 Buick – TCC Stator Temperature. Switch Circuit Low
DTC P1874 Buick – TCC Stator Temperature. Switch Circuit High
DTC P1875 Buick – 4WD Low Switch Circuit
DTC P1884 Buick – TCC Enable/Shift Light Circuit
DTC P1886 Buick – Shift Timing Solenoid
DTC P1887 Buick – TCC Release Switch Circuit
DTC P1890 Buick – ECM Data Input Circuit
DTC P1891 Buick – Throttle Position Sensor PWM Signal Low
DTC P1892 Buick – Throttle Position Sensor PWM Signal High
DTC P1893 Buick – Engine Torque Signal Low Voltage
DTC P1894 Buick – Engine Torque Signal High Voltage
DTC P1895 Buick – TCM To ECM Torque Reduction Circuit
DTC P2000 Buick – NOx Trap Efficiency Below Threshold Bank1
DTC P2001 Buick – NOx Trap Efficiency Below Threshold Bank2
DTC P2002 Buick – Particulate Trap Efficiency Below Threshold Bank1
DTC P2003 Buick – Particulate Trap Efficiency Below Threshold Bank2
DTC P2004 Buick – Intake Manifold Runner Control Stuck Open Bank1
DTC P2005 Buick – Intake Manifold Runner Control Stuck Open Bank2
DTC P2006 Buick – Intake Manifold Runner Control Stuck Closed Bank1
DTC P2007 Buick – Intake Manifold Runner Control Stuck Closed Bank2
DTC P2008 Buick – Intake Manifold Runner Control Circuit/Open Bank1
DTC P2009 Buick – Intake Manifold Runner Control Circuit Low Bank1
DTC P2010 Buick – Intake Manifold Runner Control Circuit High Bank1
DTC P2011 Buick – Intake Manifold Runner Control Circuit/Open Bank2
DTC P2012 Buick – Intake Manifold Runner Control Circuit Low Bank2
DTC P2013 Buick – Intake Manifold Runner Control Circuit High Bank2
DTC P2014 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Bank1
DTC P2015 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank1
DTC P2016 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Low Bank1
DTC P2017 Buick – Intake Manifold Runner Position Sensor/Switch Circuit High Bank1
DTC P2018 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank1
DTC P2019 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Bank2
DTC P2020 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Range/Performance Bank2
DTC P2021 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Low Bank2
DTC P2022 Buick – Intake Manifold Runner Position Sensor/Switch Circuit High Bank2
DTC P2023 Buick – Intake Manifold Runner Position Sensor/Switch Circuit Intermittent Bank2
DTC P2024 Buick – EVAP Fuel Vapor Temperature Sensor Circuit
DTC P2025 Buick – EVAP Fuel Vapor Temperature Sensor Performance
DTC P2026 Buick – EVAP Fuel Vapor Temperature Sensor Circuit Low Voltage
DTC P2027 Buick – EVAP Fuel Vapor Temperature Sensor Circuit High Voltage
DTC P2028 Buick – EVAP Fuel Vapor Temperature Sensor Circuit Intermittent
DTC P2029 Buick – Fuel Fired Heater Disabled
DTC P2030 Buick – Fuel Fired Heater Performance
DTC P2031 Buick – Exhaust Gas Temperature Sensor Circuit Bank1 Sensor 2
DTC P2032 Buick – Exhaust Gas Temperature Sensor Circuit Low Bank1 Sensor 2
DTC P2033 Buick – Exhaust Gas Temperature Sensor Circuit High Bank1 Sensor 2
DTC P2034 Buick – Exhaust Gas Temperature Sensor Circuit Bank2 Sensor 2
DTC P2035 Buick – Exhaust Gas Temperature Sensor Circuit Low Bank2 Sensor 2
DTC P2036 Buick – Exhaust Gas Temperature Sensor Circuit High Bank2 Sensor 2
DTC P2037 Buick – Reductant Injector Air Pressure Sensor Circuit
DTC P2038 Buick – Reductant Injector Air Pressure Sensor Circuit Range/Performance
DTC P2039 Buick – Reductant Injector Air Pressure Sensor Circuit Low Input
DTC P2040 Buick – Reductant Injector Air Pressure Sensor Circuit High Input
DTC P2041 Buick – Reductant Injector Air Pressure Sensor Circuit Intermittent
DTC P2042 Buick – Reductant Temperature Sensor Circuit
DTC P2043 Buick – Reductant Temperature Sensor Circuit Range/Performance
DTC P2044 Buick – Reductant Temperature Sensor Circuit Low Input
DTC P2045 Buick – Reductant Temperature Sensor Circuit High Input
DTC P2046 Buick – Reductant Temperature Sensor Circuit Intermittent
DTC P2047 Buick – Reductant Injector Circuit/Open Bank1 Unit 1
DTC P2048 Buick – Reductant Injector Circuit Low Bank1 Unit 1
DTC P2049 Buick – Reductant Injector Circuit High Bank1 Unit 1
DTC P2050 Buick – Reductant Injector Circuit/Open Bank2 Unit 1
DTC P2051 Buick – Reductant Injector Circuit Low Bank2 Unit 1
DTC P2052 Buick – Reductant Injector Circuit High Bank2 Unit 1
DTC P2053 Buick – Reductant Injector Circuit/Open Bank1 Unit 2
DTC P2054 Buick – Reductant Injector Circuit Low Bank1 Unit 2
DTC P2055 Buick – Reductant Injector Circuit High Bank1 Unit 2
DTC P2056 Buick – Reductant Injector Circuit/Open Bank2 Unit 2
DTC P2057 Buick – Reductant Injector Circuit Low Bank2 Unit 2
DTC P2058 Buick – Reductant Injector Circuit High Bank2 Unit 2
DTC P2059 Buick – Reductant Injector Air Pump Control Circuit/Open
DTC P2060 Buick – Reductant Injector Air Pump Control Circuit Low
DTC P2061 Buick – Reductant Injector Air Pump Control Circuit High
DTC P2062 Buick – Reductant Supply Control Circuit/Open
DTC P2063 Buick – Reductant Supply Control Circuit Low
DTC P2064 Buick – Reductant Supply Control Circuit High
DTC P2065 Buick – Fuel Level Sensor B Circuit
DTC P2066 Buick – Fuel Level Sensor B Performance
DTC P2067 Buick – Fuel Level Sensor B Circuit Low
DTC P2068 Buick – Fuel Level Sensor B Circuit High
DTC P2069 Buick – Fuel Level Sensor B Circuit Intermittent
DTC P2070 Buick – Intake Manifold Tuning Valve Stuck Open
DTC P2071 Buick – Intake Manifold Tuning Valve Stuck Closed
DTC P2075 Buick – Intake Manifold Tuning Valve Position Sensor/Switch Circuit
DTC P2076 Buick – Intake Manifold Tuning Valve Position Sensor/Switch Circuit Range/Performance
DTC P2077 Buick – Intake Manifold Tuning Valve Position Sensor/Switch Circuit Low
DTC P2078 Buick – Intake Manifold Tuning Valve Position Sensor/Switch Circuit High
DTC P2079 Buick – Intake Manifold Tuning Valve Position Sensor/Switch Circuit Intermittent
DTC P2080 Buick – Exhaust Gas Temperature Sensor Circuit Range/Performance Bank1 Sensor 1
DTC P2081 Buick – Exhaust Gas Temperature Sensor Circuit Intermittent Bank1 Sensor 1
DTC P2082 Buick – Exhaust Gas Temperature Sensor Circuit Range/Performance Bank2 Sensor 1
DTC P2083 Buick – Exhaust Gas Temperature Sensor Circuit Intermittent Bank2 Sensor 1
DTC P2084 Buick – Exhaust Gas Temperature Sensor Circuit Range/Performance Bank1 Sensor 2
DTC P2085 Buick – Exhaust Gas Temperature Sensor Circuit Intermittent Bank1 Sensor 2
DTC P2086 Buick – Exhaust Gas Temperature Sensor Circuit Range/Performance Bank2 Sensor 2
DTC P2087 Buick – Exhaust Gas Temperature Sensor Circuit Intermittent Bank2 Sensor 2
DTC P2088 Buick – A Camshaft Position Actuator Control Circuit Low Bank1
DTC P2089 Buick – A Camshaft Position Actuator Control Circuit High Bank1
DTC P2090 Buick – B Camshaft Position Actuator Control Circuit Low Bank1
DTC P2091 Buick – B Camshaft Position Actuator Control Circuit High Bank1
DTC P2092 Buick – A Camshaft Position Actuator Control Circuit Low Bank2
DTC P2093 Buick – A Camshaft Position Actuator Control Circuit High Bank2
DTC P2094 Buick – B Camshaft Position Actuator Control Circuit Low Bank2
DTC P2095 Buick – B Camshaft Position Actuator Control Circuit High Bank2
DTC P2096 Buick – Post Catalyst Fuel Trim System Too Lean Bank1
DTC P2097 Buick – Post Catalyst Fuel Trim System Too Rich Bank1
DTC P2098 Buick – Post Catalyst Fuel Trim System Too Lean Bank2
DTC P2099 Buick – Post Catalyst Fuel Trim System Too Rich Bank2
DTC P2100 Buick – Throttle Actuator Control Motor Circuit/Open
DTC P2101 Buick – Throttle Actuator Control Motor Circuit Range/Performance
DTC P2102 Buick – Throttle Actuator Control Motor Circuit Low
DTC P2103 Buick – Throttle Actuator Control Motor Circuit High
DTC P2104 Buick – Throttle Actuator Control System-Forced Idle
DTC P2105 Buick – Throttle Actuator Control System-Forced Engine Shutdown
DTC P2106 Buick – Throttle Actuator Control System-Forced Limited Power
DTC P2107 Buick – Throttle Actuator Control Mod Processor
DTC P2108 Buick – Throttle Actuator Control Mod Performance
DTC P2109 Buick – Throttle/Pedal Position Sensor A Minimum Stop Performance
DTC P2110 Buick – Throttle Actuator Control System-Forced Limited RPM
DTC P2111 Buick – Throttle Actuator Control System-Stuck Open
DTC P2112 Buick – Throttle Actuator Control System-Stuck Closed
DTC P2113 Buick – Throttle/Pedal Position Sensor B Minimum Stop Performance
DTC P2114 Buick – Throttle/Pedal Position Sensor C Minimum Stop Performance
DTC P2115 Buick – Throttle/Pedal Position Sensor D Minimum Stop Performance
DTC P2116 Buick – Throttle/Pedal Position Sensor E Minimum Stop Performance
DTC P2117 Buick – Throttle/Pedal Position Sensor F Minimum Stop Performance
DTC P2118 Buick – Throttle Actuator Control Motor Current Range/Performance
DTC P2119 Buick – Throttle Actuator Control Throttle Body Range/Performance
DTC P2120 Buick – Throttle/Pedal Position Sensor/Switch D Circuit
DTC P2121 Buick – Throttle/Pedal Position Sensor/Switch D Circuit Range/Performance
DTC P2122 Buick – Throttle/Pedal Position Sensor/Switch D Circuit Low Input
DTC P2123 Buick – Throttle/Pedal Position Sensor/Switch D Circuit High Input
DTC P2124 Buick – Throttle/Pedal Position Sensor/Switch D Circuit Intermittent
DTC P2125 Buick – Throttle/Pedal Position Sensor/Switch E Circuit
DTC P2126 Buick – Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance
DTC P2127 Buick – Throttle/Pedal Position Sensor/Switch E Circuit Low Input
DTC P2128 Buick – Throttle/Pedal Position Sensor/Switch E Circuit High Input
DTC P2129 Buick – Throttle/Pedal Position Sensor/Switch E Circuit Intermittent
DTC P2130 Buick – Throttle/Pedal Position Sensor/Switch F Circuit
DTC P2131 Buick – Throttle/Pedal Position Sensor/Switch F Circuit Range Performance
DTC P2132 Buick – Throttle/Pedal Position Sensor/Switch F Circuit Low Input
DTC P2133 Buick – Throttle/Pedal Position Sensor/Switch F Circuit High Input
DTC P2134 Buick – Throttle/Pedal Position Sensor/Switch F Circuit Intermittent
DTC P2135 Buick – Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation
DTC P2136 Buick – Throttle/Pedal Position Sensor/Switch A / C Voltage Correlation
DTC P2137 Buick – Throttle/Pedal Position Sensor/Switch B / C Voltage Correlation
DTC P2138 Buick – Throttle/Pedal Position Sensor/Switch D / E Voltage Correlation
DTC P2139 Buick – Throttle/Pedal Position Sensor/Switch D / F Voltage Correlation
DTC P2140 Buick – Throttle/Pedal Position Sensor/Switch E / F Voltage Correlation
DTC P2141 Buick – Exhaust Gas recirculation Throttle Control Circuit Low
DTC P2142 Buick – Exhaust Gas recirculation Throttle Control Circuit High
DTC P2143 Buick – Exhaust Gas recirculation Vent Control Circuit/Open
DTC P2144 Buick – Exhaust Gas recirculation Vent Control Circuit Low
DTC P2145 Buick – Exhaust Gas recirculation Vent Control Circuit High
DTC P2146 Buick – Fuel Injector Group A Supply Voltage Circuit/Open
DTC P2147 Buick – Fuel Injector Group A Supply Voltage Circuit Low
DTC P2148 Buick – Fuel Injector Group A Supply Voltage Circuit High
DTC P2149 Buick – Fuel Injector Group B Supply Voltage Circuit/Open
DTC P2150 Buick – Fuel Injector Group B Supply Voltage Circuit Low
DTC P2151 Buick – Fuel Injector Group B Supply Voltage Circuit High
DTC P2152 Buick – Fuel Injector Group C Supply Voltage Circuit/Open
DTC P2153 Buick – Fuel Injector Group C Supply Voltage Circuit Low
DTC P2154 Buick – Fuel Injector Group C Supply Voltage Circuit High
DTC P2155 Buick – Fuel Injector Group D Supply Voltage Circuit/Open
DTC P2156 Buick – Fuel Injector Group D Supply Voltage Circuit Low
DTC P2157 Buick – Fuel Injector Group D Supply Voltage Circuit High
DTC P2158 Buick – Vehicle Speed Sensor B
DTC P2159 Buick – Vehicle Speed Sensor B Range/Performance
DTC P2160 Buick – Vehicle Speed Sensor B Circuit Low
DTC P2161 Buick – Vehicle Speed Sensor B Intermittent/Erratic
DTC P2162 Buick – Vehicle Speed Sensor A / B Correlation
DTC P2163 Buick – Throttle/Pedal Position Sensor A Maximum Stop Performance
DTC P2164 Buick – Throttle/Pedal Position Sensor B Maximum Stop Performance
DTC P2165 Buick – Throttle/Pedal Position Sensor C Maximum Stop Performance
DTC P2166 Buick – Throttle/Pedal Position Sensor D Maximum Stop Performance
DTC P2167 Buick – Throttle/Pedal Position Sensor E Maximum Stop Performance
DTC P2168 Buick – Throttle/Pedal Position Sensor F Maximum Stop Performance
DTC P2169 Buick – Exhaust Pressure Regulator Vent Solenoid Control Circuit/Open
DTC P2170 Buick – Exhaust Pressure Regulator Vent Solenoid Control Circuit Low
DTC P2171 Buick – Exhaust Pressure Regulator Vent Solenoid Control Circuit High
DTC P2172 Buick – Throttle Actuator Control System-Sudden High Airflow Detected
DTC P2173 Buick – Throttle Actuator Control System-High Airflow Detected
DTC P2174 Buick – Throttle Actuator Control System-Sudden Low Airflow Detected
DTC P2175 Buick – Throttle Actuator Control System-Low Airflow Detected
DTC P2176 Buick – Throttle Actuator Control System-Idle Position Not Learned
DTC P2177 Buick – System Too Lean Off Idle Bank1
DTC P2178 Buick – System Too Rich Off Idle Bank1
DTC P2179 Buick – System Too Lean Off Idle Bank2
DTC P2180 Buick – System Too Rich Off Idle Bank2
DTC P2181 Buick – Cooling System Performance
DTC P2182 Buick – Engine Coolant Temperature Sensor 2 Circuit
DTC P2183 Buick – Engine Coolant Temperature Sensor 2 Circuit Range/Performance
DTC P2184 Buick – Engine Coolant Temperature Sensor 2 Circuit Low
DTC P2185 Buick – Engine Coolant Temperature Sensor 2 Circuit High
DTC P2186 Buick – Engine Coolant Temperature Sensor 2 Circuit Intermittent/Erratic
DTC P2187 Buick – System Too Lean at Idle Bank1
DTC P2188 Buick – System Too Rich at Idle Bank1
DTC P2189 Buick – System Too Lean at Idle Bank2
DTC P2190 Buick – System Too Rich at Idle Bank2
DTC P2191 Buick – System Too Lean at Higher Load Bank1
DTC P2192 Buick – System Too Rich at Higher Load Bank1
DTC P2193 Buick – System Too Lean at Higher Load Bank2
DTC P2194 Buick – System Too Rich at Higher Load Bank2
DTC P2195 Buick – O2 Sensor Signal Stuck Lean Bank1 Sensor 1
DTC P2196 Buick – O2 Sensor Signal Stuck Rich Bank1 Sensor 1
DTC P2197 Buick – O2 Sensor Signal Stuck Lean Bank2 Sensor 1
DTC P2198 Buick – O2 Sensor Signal Stuck Rich Bank2 Sensor 1
DTC P2199 Buick – Intake Air Temperature Sensor 1 / 2 Correlation
DTC P2200 Buick – NOx Sensor Circuit Bank1
DTC P2201 Buick – NOx Sensor Circuit Range/Performance Bank1
DTC P2202 Buick – NOx Sensor Circuit Low Input Bank1
DTC P2203 Buick – NOx Sensor Circuit High Input Bank1
DTC P2204 Buick – NOx Sensor Circuit Intermittent Input Bank1
DTC P2205 Buick – NOx Sensor Heater Control Circuit/Open Bank1
DTC P2206 Buick – NOx Sensor Heater Control Circuit Low Bank1
DTC P2207 Buick – NOx Sensor Heater Control Circuit High Bank1
DTC P2208 Buick – NOx Sensor Heater Sense Circuit Bank1
DTC P2209 Buick – NOx Sensor Heater Sense Circuit Range/Performance Bank1
DTC P2210 Buick – NOx Sensor Heater Sense Circuit Low Input Bank1
DTC P2211 Buick – NOx Sensor Heater Sense Circuit High Input Bank1
DTC P2212 Buick – NOx Sensor Heater Sense Circuit Intermittent Bank1
DTC P2213 Buick – NOx Sensor Circuit Bank2
DTC P2214 Buick – NOx Sensor Circuit Range/Performance Bank2
DTC P2215 Buick – NOx Sensor Circuit Low Input Bank2
DTC P2216 Buick – NOx Sensor Circuit High Input Bank2
DTC P2217 Buick – NOx Sensor Circuit Intermittent Input Bank2
DTC P2218 Buick – NOx Sensor Heater Control Circuit/Open Bank2
DTC P2219 Buick – NOx Sensor Heater Control Circuit Low Bank2
DTC P2220 Buick – NOx Sensor Heater Control Circuit High Bank2
DTC P2221 Buick – NOx Sensor Heater Sense Circuit Bank2
DTC P2222 Buick – NOx Sensor Heater Sense Circuit Range/Performance Bank2
DTC P2223 Buick – NOx Sensor Heater Sense Circuit Low Bank2
DTC P2224 Buick – NOx Sensor Heater Sense Circuit High Bank2
DTC P2225 Buick – NOx Sensor Heater Sense Circuit Intermittent Bank2
DTC P2226 Buick – Barometric Pressure Circuit
DTC P2227 Buick – Barometric Pressure Circuit Range/Performance
DTC P2228 Buick – Barometric Pressure Circuit Low
DTC P2229 Buick – Barometric Pressure Circuit High
DTC P2230 Buick – Barometric Pressure Circuit Intermittent
DTC P2231 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank1 Sensor 1
DTC P2232 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank1 Sensor 2
DTC P2233 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank1 Sensor 3
DTC P2234 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank2 Sensor 1
DTC P2235 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank2 Sensor 2
DTC P2236 Buick – O2 Sensor Signal Circuit Shorted to Heater Circuit Bank2 Sensor 3
DTC P2237 Buick – O2 Sensor Positive Current Control Circuit/Open Bank1 Sensor 1
DTC P2238 Buick – O2 Sensor Positive Current Control Circuit Low Bank1 Sensor 1
DTC P2239 Buick – O2 Sensor Positive Current Control Circuit High Bank1 Sensor 1
DTC P2240 Buick – O2 Sensor Positive Current Control Circuit/Open Bank2 Sensor 1
DTC P2241 Buick – O2 Sensor Positive Current Control Circuit Low Bank2 Sensor 1
DTC P2242 Buick – O2 Sensor Positive Current Control Circuit High Bank2 Sensor 1
DTC P2243 Buick – O2 Sensor Reference Voltage Circuit/Open Bank1 Sensor 1
DTC P2244 Buick – O2 Sensor Reference Voltage Performance Bank1 Sensor 1
DTC P2245 Buick – O2 Sensor Reference Voltage Circuit Low Bank1 Sensor 1
DTC P2246 Buick – O2 Sensor Reference Voltage Circuit High Bank1 Sensor 1
DTC P2247 Buick – O2 Sensor Reference Voltage Circuit/Open Bank2 Sensor 1
DTC P2248 Buick – O2 Sensor Reference Voltage Performance Bank2 Sensor 1
DTC P2249 Buick – O2 Sensor Reference Voltage Circuit Low Bank2 Sensor 1
DTC P2250 Buick – O2 Sensor Reference Voltage Circuit High Bank2 Sensor 1
DTC P2251 Buick – O2 Sensor Negative Current Control Circuit/Open Bank1 Sensor 1
DTC P2252 Buick – O2 Sensor Negative Current Control Circuit Low Bank1 Sensor 1
DTC P2253 Buick – O2 Sensor Negative Current Control Circuit High Bank1 Sensor 1
DTC P2254 Buick – O2 Sensor Negative Current Control Circuit/Open Bank2 Sensor 1
DTC P2255 Buick – O2 Sensor Negative Current Control Circuit Low Bank2 Sensor 1
DTC P2256 Buick – O2 Sensor Negative Current Control Circuit High Bank2 Sensor 1
DTC P2257 Buick – Secondary Air Injection System Control A Circuit Low
DTC P2258 Buick – Secondary Air Injection System Control A Circuit High
DTC P2259 Buick – Secondary Air Injection System Control B Circuit Low
DTC P2260 Buick – Secondary Air Injection System Control B Circuit High
DTC P2261 Buick – T/S Charger Bypass Valve-Mechanical
DTC P2262 Buick – Turbo Boost Pressure Not Detected-Mechanical
DTC P2263 Buick – T/S Charger Boost System Performance
DTC P2264 Buick – Water in Fuel Sensor Circuit
DTC P2265 Buick – Water in Fuel Sensor Circuit Range/Performance
DTC P2266 Buick – Water in Fuel Sensor Circuit Low
DTC P2267 Buick – Water in Fuel Sensor Circuit High
DTC P2268 Buick – Water in Fuel Sensor Circuit Intermittent
DTC P2269 Buick – Water in Fuel Condition
DTC P2270 Buick – O2 Sensor Signal Stuck Lean Bank1 Sensor 2
DTC P2271 Buick – O2 Sensor Signal Stuck Rich Bank1 Sensor 2
DTC P2272 Buick – O2 Sensor Signal Stuck Lean Bank2 Sensor 2
DTC P2273 Buick – O2 Sensor Signal Stuck Rich Bank2 Sensor 2
DTC P2274 Buick – O2 Sensor Signal Stuck Lean Bank1 Sensor 3
DTC P2275 Buick – O2 Sensor Signal Stuck Rich Bank1 Sensor 3
DTC P2276 Buick – O2 Sensor Signal Stuck Lean Bank2 Sensor 3
DTC P2277 Buick – O2 Sensor Signal Stuck Rich Bank2 Sensor 3
DTC P2278 Buick – O2 Sensor Signals Swapped Bank1 Sensor 3 /Bank2 Sensor 3
DTC P2279 Buick – Intake Air System Leak
DTC P2280 Buick – Air Flow Restriction / Air Leak Between Air Filter and MAF
DTC P2281 Buick – Air Leak Between MAF and Throttle Body
DTC P2282 Buick – Air Leak Between Throttle Body and Intake Valves
DTC P2283 Buick – Injector Control Pressure Sensor Circuit
DTC P2284 Buick – Injector Control Pressure Sensor Circuit Range/Performance
DTC P2285 Buick – Injector Control Pressure Sensor Circuit Low
DTC P2286 Buick – Injector Control Pressure Sensor Circuit High
DTC P2287 Buick – Injector Control Pressure Sensor Circuit Intermittent
DTC P2288 Buick – Injector Control Pressure Too High
DTC P2289 Buick – Injector Control Pressure Too High-Engine Off
DTC P2290 Buick – Injector Control Pressure Too Low
DTC P2291 Buick – Injector Control Pressure Too Low-Engine Cranking
DTC P2292 Buick – Injector Control Pressure Erratic
DTC P2293 Buick – Fuel Pressure Regulator 2 Performance
DTC P2294 Buick – Fuel Pressure Regulator 2 Control Circuit
DTC P2295 Buick – Fuel Pressure Regulator 2 Control Circuit Low
DTC P2296 Buick – Fuel Pressure Regulator 2 Control Circuit High
DTC P2297 Buick – O2 Sensor Out of Range During Deceleration Bank1 Sensor 1
DTC P2298 Buick – O2 Sensor Out of Range During Deceleration Bank2 Sensor 1
DTC P2299 Buick – Brake Pedal Position / Accelerator Pedal Position Incompatible
DTC P2300 Buick – Ignition Coil A Primary Control Circuit Low
DTC P2301 Buick – Ignition Coil A Primary Control Circuit High
DTC P2302 Buick – Ignition Coil A secondary Circuit
DTC P2303 Buick – Ignition Coil B Primary Control Circuit Low
DTC P2304 Buick – Ignition Coil B Primary Control Circuit High
DTC P2305 Buick – Ignition Coil B secondary Circuit
DTC P2306 Buick – Ignition Coil C Primary Control Circuit Low
DTC P2307 Buick – Ignition Coil C Primary Control Circuit High
DTC P2308 Buick – Ignition Coil C secondary Circuit
DTC P2309 Buick – Ignition Coil D Primary Control Circuit Low
DTC P2310 Buick – Ignition Coil D Primary Control Circuit High
DTC P2311 Buick – Ignition Coil D secondary Circuit
DTC P2312 Buick – Ignition Coil E Primary Control Circuit Low
DTC P2313 Buick – Ignition Coil E Primary Control Circuit High
DTC P2314 Buick – Ignition Coil E secondary Circuit
DTC P2315 Buick – Ignition Coil F Primary Control Circuit Low
DTC P2316 Buick – Ignition Coil F Primary Control Circuit High
DTC P2317 Buick – Ignition Coil F secondary Circuit
DTC P2318 Buick – Ignition Coil G Primary Control Circuit Low
DTC P2319 Buick – Ignition Coil G Primary Control Circuit High
DTC P2320 Buick – Ignition Coil G secondary Circuit
DTC P2321 Buick – Ignition Coil H Primary Control Circuit Low
DTC P2322 Buick – Ignition Coil H Primary Control Circuit High
DTC P2323 Buick – Ignition Coil H secondary Circuit
DTC P2324 Buick – Ignition Coil I Primary Control Circuit Low
DTC P2325 Buick – Ignition Coil I Primary Control Circuit High
DTC P2326 Buick – Ignition Coil I secondary Circuit
DTC P2327 Buick – Ignition Coil J Primary Control Circuit Low
DTC P2328 Buick – Ignition Coil J Primary Control Circuit High
DTC P2329 Buick – Ignition Coil J secondary Circuit
DTC P2330 Buick – Ignition Coil K Primary Control Circuit Low
DTC P2331 Buick – Ignition Coil K Primary Control Circuit High
DTC P2332 Buick – Ignition Coil K secondary Circuit
DTC P2333 Buick – Ignition Coil L Primary Control Circuit Low
DTC P2334 Buick – Ignition Coil L Primary Control Circuit High
DTC P2335 Buick – Ignition Coil L secondary Circuit
DTC P2336 Buick – Cylinder #1 Above Knock Threshold
DTC P2337 Buick – Cylinder #2 Above Knock Threshold
DTC P2338 Buick – Cylinder #3 Above Knock Threshold
DTC P2339 Buick – Cylinder #4 Above Knock Threshold
DTC P2340 Buick – Cylinder #5 Above Knock Threshold
DTC P2341 Buick – Cylinder #6 Above Knock Threshold
DTC P2342 Buick – Cylinder #7 Above Knock Threshold
DTC P2343 Buick – Cylinder #8 Above Knock Threshold
DTC P2344 Buick – Cylinder #9 Above Knock Threshold
DTC P2345 Buick – Cylinder #10 Above Knock Threshold
DTC P2346 Buick – Cylinder #11 Above Knock Threshold
DTC P2347 Buick – Cylinder #12 Above Knock Threshold
DTC P2400 Buick – EVAP Leak Detection Pump Control Circuit/Open
DTC P2401 Buick – EVAP Leak Detection Pump Control Circuit Low
DTC P2402 Buick – EVAP Leak Detection Pump Control Circuit High
DTC P2403 Buick – EVAP Leak Detection Pump Sense Circuit/Open
DTC P2404 Buick – EVAP Leak Detection Pump Sense Circuit Range/Performance
DTC P2405 Buick – EVAP Leak Detection Pump Sense Circuit Low
DTC P2406 Buick – EVAP Leak Detection Pump Sense Circuit High
DTC P2407 Buick – EVAP Leak Detection Pump Sense Circuit Intermittent/Erratic
DTC P2408 Buick – Fuel Cap Sensor/Switch Circuit
DTC P2409 Buick – Fuel Cap Sensor/Switch Circuit Range/Performance
DTC P2410 Buick – Fuel Cap Sensor/Switch Circuit Low
DTC P2411 Buick – Fuel Cap Sensor/Switch Circuit High
DTC P2412 Buick – Fuel Cap Sensor/Switch Circuit Intermittent/Erratic
DTC P2413 Buick – Exhaust Gas Recirculation System Performance
DTC P2414 Buick – O2 Sensor Exhaust Sample Error Bank1 Sensor 1
DTC P2415 Buick – O2 Sensor Exhaust Sample Error Bank2 Sensor 1
DTC P2416 Buick – O2 Sensor Signals Swapped Bank1 Sensor 2 /Bank1 Sensor 3
DTC P2417 Buick – O2 Sensor Signals Swapped Bank2 Sensor 2 /Bank2 Sensor 3
DTC P2418 Buick – EVAP Switching Valve Control Circuit /Open
DTC P2419 Buick – EVAP Switching Valve Control Circuit Low
DTC P2420 Buick – EVAP Switching Valve Control Circuit High
DTC P2421 Buick – EVAP Vent Valve Stuck Open
DTC P2422 Buick – EVAP Vent Valve Stuck Closed
DTC P2423 Buick – HC Adsorption Catalyst Efficiency Below Threshold Bank1
DTC P2424 Buick – HC Adsorption Catalyst Efficiency Below Threshold Bank2
DTC P2425 Buick – Exhaust Gas Recirculation Cooling Valve Control Circuit/Open
DTC P2426 Buick – Exhaust Gas Recirculation Cooling Valve Control Circuit Low
DTC P2427 Buick – Exhaust Gas Recirculation Cooling Valve Control Circuit High
DTC P2428 Buick – Exhaust Gas Temperature Too High Bank1
DTC P2429 Buick – Exhaust Gas Temperature Too High Bank2
DTC P2430 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Bank1
DTC P2431 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank1
DTC P2432 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank1
DTC P2433 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank1
DTC P2434 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/Erratic Bank1
DTC P2435 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Bank2
DTC P2436 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Range/Performance Bank2
DTC P2437 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Low Bank2
DTC P2438 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit High Bank2
DTC P2439 Buick – Secondary Air Injection System Air Flow/Pressure Sensor Circuit Intermittent/Erratic Bank2
DTC P2440 Buick – Secondary Air Injection System Switching Valve Stuck Open Bank1
DTC P2441 Buick – Secondary Air Injection System Switching Valve Stuck Closed Bank1
DTC P2442 Buick – Secondary Air Injection System Switching Valve Stuck Open Bank2
DTC P2443 Buick – Secondary Air Injection System Switching Valve Stuck Closed Bank2
DTC P2444 Buick – Secondary Air Injection System Pump Stuck On Bank1
DTC P2445 Buick – Secondary Air Injection System Pump Stuck Off Bank1
DTC P2446 Buick – Secondary Air Injection System Pump Stuck On Bank2
DTC P2447 Buick – Secondary Air Injection System Pump Stuck Off Bank2
DTC P2500 Buick – Generator Lamp/L-Terminal Circuit Low
DTC P2501 Buick – Generator Lamp/L-Terminal Circuit High
DTC P2502 Buick – Charging System Voltage
DTC P2503 Buick – Charging System Voltage Low
DTC P2504 Buick – Charging System Voltage High
DTC P2505 Buick – ECM/PCM Power Input Signal
DTC P2506 Buick – ECM/PCM Power Input Signal Range/Performance
DTC P2507 Buick – ECM/PCM Power Input Signal Low
DTC P2508 Buick – ECM/PCM Power Input Signal High
DTC P2509 Buick – ECM/PCM Power Input Signal Intermittent
DTC P2510 Buick – ECM/PCM Power Relay Sense Circuit Range/Performance
DTC P2511 Buick – ECM/PCM Power Relay Sense Circuit Intermittent
DTC P2512 Buick – Event Data Recorder Request Circuit/ Open
DTC P2513 Buick – Event Data Recorder Request Circuit Low
DTC P2514 Buick – Event Data Recorder Request Circuit High
DTC P2515 Buick – A/C Refrigerant Pressure Sensor B Circuit
DTC P2516 Buick – A/C Refrigerant Pressure Sensor B Circuit Range/Performance
DTC P2517 Buick – A/C Refrigerant Pressure Sensor B Circuit Low
DTC P2518 Buick – A/C Refrigerant Pressure Sensor B Circuit High
DTC P2519 Buick – A/C Request A Circuit
DTC P2520 Buick – A/C Request A Circuit Low
DTC P2521 Buick – A/C Request A Circuit High
DTC P2522 Buick – A/C Request B Circuit
DTC P2523 Buick – A/C Request B Circuit Low
DTC P2524 Buick – A/C Request B Circuit High
DTC P2525 Buick – Vacuum Reservoir Pressure Sensor Circuit
DTC P2526 Buick – Vacuum Reservoir Pressure Sensor Circuit Range/Performance
DTC P2527 Buick – Vacuum Reservoir Pressure Sensor Circuit Low
DTC P2528 Buick – Vacuum Reservoir Pressure Sensor Circuit High
DTC P2529 Buick – Vacuum Reservoir Pressure Sensor Circuit Intermittent
DTC P2530 Buick – Ignition Switch Run Position Circuit
DTC P2531 Buick – Ignition Switch Run Position Circuit Low
DTC P2532 Buick – Ignition Switch Run Position Circuit High
DTC P2533 Buick – Ignition Switch Run/Start Position Circuit
DTC P2534 Buick – Ignition Switch Run/Start Position Circuit Low
DTC P2535 Buick – Ignition Switch Run/Start Position Circuit High
DTC P2536 Buick – Ignition Switch Accessory Position Circuit
DTC P2537 Buick – Ignition Switch Accessory Position Circuit Low
DTC P2538 Buick – Ignition Switch Accessory Position Circuit High
DTC P2539 Buick – Low Pressure Fuel System Sensor Circuit
DTC P2540 Buick – Low Pressure Fuel System Sensor Circuit Range/Performance
DTC P2541 Buick – Low Pressure Fuel System Sensor Circuit Low
DTC P2542 Buick – Low Pressure Fuel System Sensor Circuit High
DTC P2543 Buick – Low Pressure Fuel System Sensor Circuit Intermittent
DTC P2544 Buick – Torque Management Request Input Signal A
DTC P2545 Buick – Torque Management Request Input Signal A Range/Performance
DTC P2546 Buick – Torque Management Request Input Signal A Low
DTC P2547 Buick – Torque Management Request Input Signal A High
DTC P2548 Buick – Torque Management Request Input Signal B
DTC P2549 Buick – Torque Management Request Input Signal B Range/Performance
DTC P2550 Buick – Torque Management Request Input Signal B Low
DTC P2551 Buick – Torque Management Request Input Signal B High
DTC P2552 Buick – Throttle/Fuel Inhibit Circuit
DTC P2553 Buick – Throttle/Fuel Inhibit Circuit Range/Performance
DTC P2554 Buick – Throttle/Fuel Inhibit Circuit Low
DTC P2555 Buick – Throttle/Fuel Inhibit Circuit High
DTC P2556 Buick – Engine Coolant Level Sensor/Switch Circuit
DTC P2557 Buick – Engine Coolant Level Sensor/Switch Circuit Range/Performance
DTC P2558 Buick – Engine Coolant Level Sensor/Switch Circuit Low
DTC P2559 Buick – Engine Coolant Level Sensor/Switch Circuit High
DTC P2560 Buick – Engine Coolant Level Low
DTC P2561 Buick – A/C Control Mod Requested MIL Illumination
DTC P2562 Buick – Turbocharger Boost Control Position Sensor Circuit
DTC P2563 Buick – Turbocharger Boost Control Position Sensor Circuit Range/Performance
DTC P2564 Buick – Turbocharger Boost Control Position Sensor Circuit Low
DTC P2565 Buick – Turbocharger Boost Control Position Sensor Circuit High
DTC P2566 Buick – Turbocharger Boost Control Position Sensor Circuit Intermittent
DTC P2567 Buick – Direct Ozone Reduction Catalyst Temperature Sensor Circuit
DTC P2568 Buick – Direct Ozone Reduction Catalyst Temperature Sensor Circuit Range/Performance
DTC P2569 Buick – Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low
DTC P2570 Buick – Direct Ozone Reduction Catalyst Temperature Sensor Circuit High
DTC P2571 Buick – Direct Ozone Reduction Catalyst Temperature Sensor Circuit Intermittent/Erratic
DTC P2572 Buick – Direct Ozone Reduction Catalyst Deterioration Sensor Circuit
DTC P2573 Buick – Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Range/Performance
DTC P2574 Buick – Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low
DTC P2575 Buick – Direct Ozone Reduction Catalyst Deterioration Sensor Circuit High
DTC P2576 Buick – Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Intermittent/Erratic
DTC P2577 Buick – Direct Ozone Reduction Catalyst Efficiency Below Threshold
DTC P2600 Buick – Coolant Pump Control Circuit/Open
DTC P2601 Buick – Coolant Pump Control Circuit Range/Performance
DTC P2602 Buick – Coolant Pump Control Circuit Low
DTC P2603 Buick – Coolant Pump Control Circuit High
DTC P2604 Buick – Intake Air Heater A Circuit Range/Performance
DTC P2605 Buick – Intake Air Heater A Circuit/Open
DTC P2606 Buick – Intake Air Heater B Circuit Range/Performance
DTC P2607 Buick – Intake Air Heater B Circuit Low
DTC P2608 Buick – Intake Air Heater B Circuit High
DTC P2609 Buick – Intake Air Heater System Performance
DTC P2610 Buick – ECM/PCM Internal Engine Off Timer Performance
DTC P2611 Buick – A/C Refrigerant Distribution Valve Control Circuit/Open
DTC P2612 Buick – A/C Refrigerant Distribution Valve Control Circuit Low
DTC P2613 Buick – A/C Refrigerant Distribution Valve Control Circuit High
DTC P2614 Buick – Camshaft Position Signal Output Circuit/Open
DTC P2615 Buick – Camshaft Position Signal Output Circuit Low
DTC P2616 Buick – Camshaft Position Signal Output Circuit High
DTC P2617 Buick – Crank Position Signal Output Circuit/Open
DTC P2618 Buick – Crank Position Signal Output Circuit Low
DTC P2619 Buick – Crank Position Signal Output Circuit High
DTC P2620 Buick – Throttle Position Output Circuit/Open
DTC P2621 Buick – Throttle Position Output Circuit Low
DTC P2622 Buick – Throttle Position Output Circuit High
DTC P2623 Buick – Injector Control Pressure Regulator Circuit/Open
DTC P2624 Buick – Injector Control Pressure Regulator Circuit Low
DTC P2625 Buick – Injector Control Pressure Regulator Circuit High
DTC P2626 Buick – O2 Sensor Pumping Current Trim Circuit/Open Bank1 Sensor 1
DTC P2627 Buick – O2 Sensor Pumping Current Trim Circuit Low Bank1 Sensor 1
DTC P2628 Buick – O2 Sensor Pumping Current Trim Circuit High Bank1 Sensor 1
DTC P2629 Buick – O2 Sensor Pumping Current Trim Circuit/Open Bank2 Sensor 1
DTC P2630 Buick – O2 Sensor Pumping Current Trim Circuit Low Bank2 Sensor 1
DTC P2631 Buick – O2 Sensor Pumping Current Trim Circuit High Bank2 Sensor 1
DTC P2632 Buick – Fuel Pump B Control Circuit /Open
DTC P2633 Buick – Fuel Pump B Control Circuit Low
DTC P2634 Buick – Fuel Pump B Control Circuit High
DTC P2635 Buick – Fuel Pump A Low Flow / Performance
DTC P2636 Buick – Fuel Pump B Low Flow / Performance
DTC P2637 Buick – Torque Management Feedback Signal A
DTC P2638 Buick – Torque Management Feedback Signal A Range/Performance
DTC P2639 Buick – Torque Management Feedback Signal A Low
DTC P2640 Buick – Torque Management Feedback Signal A High
DTC P2641 Buick – Torque Management Feedback Signal B
DTC P2642 Buick – Torque Management Feedback Signal B Range/Performance
DTC P2643 Buick – Torque Management Feedback Signal B Low
DTC P2644 Buick – Torque Management Feedback Signal B High
DTC P2645 Buick – A Rocker Arm Actuator Control Circuit/Open Bank1
DTC P2646 Buick – A Rocker Arm Actuator System Performance or Stuck Off Bank1
DTC P2647 Buick – A Rocker Arm Actuator System Stuck On Bank1
DTC P2648 Buick – A Rocker Arm Actuator Control Circuit Low Bank1
DTC P2649 Buick – A Rocker Arm Actuator Control Circuit High Bank1
DTC P2650 Buick – B Rocker Arm Actuator Control Circuit/Open Bank1
DTC P2651 Buick – B Rocker Arm Actuator System Performance or Stuck Off Bank1
DTC P2652 Buick – B Rocker Arm Actuator System Stuck On Bank1
DTC P2653 Buick – B Rocker Arm Actuator Control Circuit Low Bank1
DTC P2654 Buick – B Rocker Arm Actuator Control Circuit High Bank1
DTC P2655 Buick – A Rocker Arm Actuator Control Circuit/Open Bank2
DTC P2656 Buick – A Rocker Arm Actuator System Performance or Stuck Off Bank2
DTC P2657 Buick – A Rocker Arm Actuator System Stuck On Bank2
DTC P2658 Buick – A Rocker Arm Actuator Control Circuit Low Bank2
DTC P2659 Buick – A Rocker Arm Actuator Control Circuit High Bank2
DTC P2660 Buick – B Rocker Arm Actuator Control Circuit/Open Bank2
DTC P2661 Buick – B Rocker Arm Actuator System Performance or Stuck Off Bank2
DTC P2662 Buick – B Rocker Arm Actuator System Stuck On Bank2
DTC P2663 Buick – B Rocker Arm Actuator Control Circuit Low Bank2
DTC P2664 Buick – B Rocker Arm Actuator Control Circuit High Bank2
DTC P2665 Buick – Fuel Shutoff Valve B Control Circuit/Open
DTC P2666 Buick – Fuel Shutoff Valve B Control Circuit Low
DTC P2667 Buick – Fuel Shutoff Valve B Control Circuit High
DTC P2668 Buick – Fuel Mode Indicator Lamp Control Circuit
DTC P2669 Buick – Actuator Supply Voltage B Circuit /Open
DTC P2670 Buick – Actuator Supply Voltage B Circuit Low
DTC P2671 Buick – Actuator Supply Voltage B Circuit High
DTC P2700 Buick – Transmission Friction Element A Apply Time Range/Performance
DTC P2701 Buick – Transmission Friction Element B Apply Time Range/Performance
DTC P2702 Buick – Transmission Friction Element C Apply Time Range/Performance
DTC P2703 Buick – Transmission Friction Element D Apply Time Range/Performance
DTC P2704 Buick – Transmission Friction Element E Apply Time Range/Performance
DTC P2705 Buick – Transmission Friction Element F Apply Time Range/Performance
DTC P2706 Buick – Shift Solenoid F
DTC P2707 Buick – Shift Solenoid F Performance or Stuck Off
DTC P2708 Buick – Shift Solenoid F Stuck On
DTC P2709 Buick – Shift Solenoid F Electrical
DTC P2710 Buick – Shift Solenoid F Intermittent
DTC P2711 Buick – Unexpected Mechanical Gear Disengagement
DTC P2712 Buick – Hydraulic Power Unit Leakage
DTC P2713 Buick – Pressure Control Solenoid D
DTC P2714 Buick – Pressure Control Solenoid D Performance or Stuck Off
DTC P2715 Buick – Pressure Control Solenoid D Stuck On
DTC P2716 Buick – Pressure Control Solenoid D Electrical
DTC P2717 Buick – Pressure Control Solenoid D Intermittent
DTC P2718 Buick – Pressure Control Solenoid D Control Circuit / Open
DTC P2719 Buick – Pressure Control Solenoid D Control Circuit Range/Performance
DTC P2720 Buick – Pressure Control Solenoid D Control Circuit Low
DTC P2721 Buick – Pressure Control Solenoid D Control Circuit High
DTC P2722 Buick – Pressure Control Solenoid E
DTC P2723 Buick – Pressure Control Solenoid E Performance or Stuck Off
DTC P2724 Buick – Pressure Control Solenoid E Stuck On
DTC P2725 Buick – Pressure Control Solenoid E Electrical
DTC P2726 Buick – Pressure Control Solenoid E Intermittent
DTC P2727 Buick – Pressure Control Solenoid E Control Circuit / Open
DTC P2728 Buick – Pressure Control Solenoid E Control Circuit Range/Performance
DTC P2729 Buick – Pressure Control Solenoid E Control Circuit Low
DTC P2730 Buick – Pressure Control Solenoid E Control Circuit High
DTC P2731 Buick – Pressure Control Solenoid F
DTC P2732 Buick – Pressure Control Solenoid F Performance or Stuck Off
DTC P2733 Buick – Pressure Control Solenoid F Stuck On
DTC P2734 Buick – Pressure Control Solenoid F Electrical
DTC P2735 Buick – Pressure Control Solenoid F Intermittent
DTC P2736 Buick – Pressure Control Solenoid F Control Circuit/Open
DTC P2737 Buick – Pressure Control Solenoid F Control Circuit Range/Performance
DTC P2738 Buick – Pressure Control Solenoid F Control Circuit Low
DTC P2739 Buick – Pressure Control Solenoid F Control Circuit High
DTC P2740 Buick – Transmission Fluid Temperature Sensor B Circuit
DTC P2741 Buick – Transmission Fluid Temperature Sensor B Circuit Range Performance
DTC P2742 Buick – Transmission Fluid Temperature Sensor B Circuit Low
DTC P2743 Buick – Transmission Fluid Temperature Sensor B Circuit High
DTC P2744 Buick – Transmission Fluid Temperature Sensor B Circuit Intermittent
DTC P2745 Buick – Intermediate Shaft Speed Sensor B Circuit
DTC P2746 Buick – Intermediate Shaft Speed Sensor B Circuit Range/Performance
DTC P2747 Buick – Intermediate Shaft Speed Sensor B Circuit No Signal
DTC P2748 Buick – Intermediate Shaft Speed Sensor B Circuit Intermittent
DTC P2749 Buick – Intermediate Shaft Speed Sensor C Circuit
DTC P2750 Buick – Intermediate Shaft Speed Sensor C Circuit Range/Performance
DTC P2751 Buick – Intermediate Shaft Speed Sensor C Circuit No Signal
DTC P2752 Buick – Intermediate Shaft Speed Sensor C Circuit Intermittent
DTC P2753 Buick – Transmission Fluid Cooler Control Circuit/Open
DTC P2754 Buick – Transmission Fluid Cooler Control Circuit Low
DTC P2755 Buick – Transmission Fluid Cooler Control Circuit High
DTC P2756 Buick – Torque Converter Clutch Pressure Control Solenoid
DTC P2757 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance or Stuck Off
DTC P2758 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On
DTC P2759 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical
DTC P2760 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Intermittent
DTC P2761 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit/Open
DTC P2762 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Range/Performance
DTC P2763 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit High
DTC P2764 Buick – Torque Converter Clutch Pressure Control Solenoid Control Circuit Low
DTC P2765 Buick – Input/Turbine Speed Sensor B Circuit
DTC P2766 Buick – Input/Turbine Speed Sensor B Circuit Range/Performance
DTC P2767 Buick – Input/Turbine Speed Sensor B Circuit No Signal
DTC P2768 Buick – Input/Turbine Speed Sensor B Circuit Intermittent
DTC P2769 Buick – Torque Converter Clutch Circuit Low
DTC P2770 Buick – Torque Converter Clutch Circuit High
DTC P2771 Buick – 4WD Low Switch Circuit
DTC P2772 Buick – 4WD Low Switch Circuit Range/Performance
DTC P2773 Buick – 4WD Low Switch Circuit Low
DTC P2774 Buick – 4WD Low Switch Circuit High
DTC P2775 Buick – Upshift Switch Circuit Range/Performance
DTC P2776 Buick – Upshift Switch Circuit Low
DTC P2777 Buick – Upshift Switch Circuit High
DTC P2778 Buick – Upshift Switch Circuit Intermittent/Erratic
DTC P2779 Buick – Downshift Switch Circuit Range/Performance
DTC P2780 Buick – Downshift Switch Circuit Low
DTC P2781 Buick – Downshift Switch Circuit High
DTC P2782 Buick – Downshift Switch Circuit Intermittent/Erratic
DTC P2783 Buick – Torque Converter Temperature Too High
DTC P2784 Buick – Input/Turbine Speed Sensor A/B Correlation
DTC P2785 Buick – Clutch Actuator Temperature Too High
DTC P2786 Buick – Gear Shift Actuator Temperature Too High
DTC P2787 Buick – Clutch Temperature Too High
DTC P2788 Buick – Auto Shift Manual Adaptive Learning at Limit
DTC P2789 Buick – Clutch Adaptive Learning at Limit
DTC P2790 Buick – Gate Select Direction Circuit
DTC P2791 Buick – Gate Select Direction Circuit Low
DTC P2792 Buick – Gate Select Direction Circuit High
DTC P2793 Buick – Gear Shift Direction Circuit
DTC P2794 Buick – Gear Shift Direction Circuit Low
DTC P2795 Buick – Gear Shift Direction Circuit High
DTC P2A00 Buick – O2 Sensor Circuit Range/Performance Bank1 Sensor 1
DTC P2A01 Buick – O2 Sensor Circuit Range/Performance Bank1 Sensor 2
DTC P2A02 Buick – O2 Sensor Circuit Range/Performance Bank1 Sensor 3
DTC P2A03 Buick – O2 Sensor Circuit Range/Performance Bank2 Sensor 1
DTC P2A04 Buick – O2 Sensor Circuit Range/Performance Bank2 Sensor 2
DTC P2A05 Buick – O2 Sensor Circuit Range/Performance Bank2 Sensor 3
DTC P3400 Buick – Cylinder Deactivation System DTC
DTC P3401 Buick – Cylinder 1 Deactivation/Intake Valve Control Circuit/Open
DTC P3402 Buick – Cylinder 1 Deactivation/Intake Valve Control Performance
DTC P3403 Buick – Cylinder 1 Deactivation/Intake Valve Control Circuit Low
DTC P3404 Buick – Cylinder 1 Deactivation/Intake Valve Control Circuit High
DTC P3405 Buick – Cylinder 1 Exhaust Valve Control Circuit/Open
DTC P3406 Buick – Cylinder 1 Exhaust Valve Control Performance
DTC P3407 Buick – Cylinder 1 Exhaust Valve Control Circuit Low
DTC P3408 Buick – Cylinder 1 Exhaust Valve Control Circuit High
DTC P3409 Buick – Cylinder 2 Deactivation/Intake Valve Control Circuit/Open
DTC P3410 Buick – Cylinder 2 Deactivation/Intake Valve Control Performance
DTC P3411 Buick – Cylinder 2 Deactivation/Intake Valve Control Circuit Low
DTC P3412 Buick – Cylinder 2 Deactivation/Intake Valve Control Circuit High
DTC P3413 Buick – Cylinder 2 Exhaust Valve Control Circuit/Open
DTC P3414 Buick – Cylinder 2 Exhaust Valve Control Performance
DTC P3415 Buick – Cylinder 2 Exhaust Valve Control Circuit Low
DTC P3416 Buick – Cylinder 2 Exhaust Valve Control Circuit High
DTC P3417 Buick – Cylinder 3 Deactivation/Intake Valve Control Circuit/Open
DTC P3418 Buick – Cylinder 3 Deactivation/Intake Valve Control Performance
DTC P3419 Buick – Cylinder 3 Deactivation/Intake Valve Control Circuit Low
DTC P3420 Buick – Cylinder 3 Deactivation/Intake Valve Control Circuit High
DTC P3421 Buick – Cylinder 3 Exhaust Valve Control Circuit/Open
DTC P3422 Buick – Cylinder 3 Exhaust Valve Control Performance
DTC P3423 Buick – Cylinder 3 Exhaust Valve Control Circuit Low
DTC P3424 Buick – Cylinder 3 Exhaust Valve Control Circuit High
DTC P3425 Buick – Cylinder 4 Deactivation/Intake Valve Control Circuit/Open
DTC P3426 Buick – Cylinder 4 Deactivation/Intake Valve Control Performance
DTC P3427 Buick – Cylinder 4 Deactivation/Intake Valve Control Circuit Low
DTC P3428 Buick – Cylinder 4 Deactivation/Intake Valve Control Circuit High
DTC P3429 Buick – Cylinder 4 Exhaust Valve Control Circuit/Open
DTC P3430 Buick – Cylinder 4 Exhaust Valve Control Performance
DTC P3431 Buick – Cylinder 4 Exhaust Valve Control Circuit Low
DTC P3432 Buick – Cylinder 4 Exhaust Valve Control Circuit High
DTC P3433 Buick – Cylinder 5 Deactivation/Intake Valve Control Circuit/Open
DTC P3434 Buick – Cylinder 5 Deactivation/Intake Valve Control Performance
DTC P3435 Buick – Cylinder 5 Deactivation/Intake Valve Control Circuit Low
DTC P3436 Buick – Cylinder 5 Deactivation/Intake Valve Control Circuit High
DTC P3437 Buick – Cylinder 5 Exhaust Valve Control Circuit/Open
DTC P3438 Buick – Cylinder 5 Exhaust Valve Control Performance
DTC P3439 Buick – Cylinder 5 Exhaust Valve Control Circuit Low
DTC P3440 Buick – Cylinder 5 Exhaust Valve Control Circuit High
DTC P3441 Buick – Cylinder 6 Deactivation/Intake Valve Control Circuit/Open
DTC P3442 Buick – Cylinder 6 Deactivation/Intake Valve Control Performance
DTC P3443 Buick – Cylinder 6 Deactivation/Intake Valve Control Circuit Low
DTC P3444 Buick – Cylinder 6 Deactivation/Intake Valve Control Circuit High
DTC P3445 Buick – Cylinder 6 Exhaust Valve Control Circuit/Open
DTC P3446 Buick – Cylinder 6 Exhaust Valve Control Performance
DTC P3447 Buick – Cylinder 6 Exhaust Valve Control Circuit Low
DTC P3448 Buick – Cylinder 6 Exhaust Valve Control Circuit High
DTC P3449 Buick – Cylinder 7 Deactivation/Intake Valve Control Circuit/Open
DTC P3450 Buick – Cylinder 7 Deactivation/Intake Valve Control Performance
DTC P3451 Buick – Cylinder 7 Deactivation/Intake Valve Control Circuit Low
DTC P3452 Buick – Cylinder 7 Deactivation/Intake Valve Control Circuit High
DTC P3453 Buick – Cylinder 7 Exhaust Valve Control Circuit/Open
DTC P3454 Buick – Cylinder 7 Exhaust Valve Control Performance
DTC P3455 Buick – Cylinder 7 Exhaust Valve Control Circuit Low
DTC P3456 Buick – Cylinder 7 Exhaust Valve Control Circuit High
DTC P3457 Buick – Cylinder 8 Deactivation/Intake Valve Control Circuit/Open
DTC P3458 Buick – Cylinder 8 Deactivation/Intake Valve Control Performance
DTC P3459 Buick – Cylinder 8 Deactivation/Intake Valve Control Circuit Low
DTC P3460 Buick – Cylinder 8 Deactivation/Intake Valve Control Circuit High
DTC P3461 Buick – Cylinder 8 Exhaust Valve Control Circuit/Open
DTC P3462 Buick – Cylinder 8 Exhaust Valve Control Performance
DTC P3463 Buick – Cylinder 8 Exhaust Valve Control Circuit Low
DTC P3464 Buick – Cylinder 8 Exhaust Valve Control Circuit High
DTC P3465 Buick – Cylinder 9 Deactivation/Intake Valve Control Circuit/Open
DTC P3466 Buick – Cylinder 9 Deactivation/Intake Valve Control Performance
DTC P3467 Buick – Cylinder 9 Deactivation/Intake Valve Control Circuit Low
DTC P3468 Buick – Cylinder 9 Deactivation/Intake Valve Control Circuit High
DTC P3469 Buick – Cylinder 9 Exhaust Valve Control Circuit/Open
DTC P3470 Buick – Cylinder 9 Exhaust Valve Control Performance
DTC P3471 Buick – Cylinder 9 Exhaust Valve Control Circuit Low
DTC P3472 Buick – Cylinder 9 Exhaust Valve Control Circuit High
DTC P3473 Buick – Cylinder 10 Deactivation/Intake Valve Control Circuit/Open
DTC P3474 Buick – Cylinder 10 Deactivation/Intake Valve Control Performance
DTC P3475 Buick – Cylinder 10 Deactivation/Intake Valve Control Circuit Low
DTC P3476 Buick – Cylinder 10 Deactivation/Intake Valve Control Circuit High
DTC P3477 Buick – Cylinder 10 Exhaust Valve Control Circuit/Open
DTC P3478 Buick – Cylinder 10 Exhaust Valve Control Performance
DTC P3479 Buick – Cylinder 10 Exhaust Valve Control Circuit Low
DTC P3480 Buick – Cylinder 10 Exhaust Valve Control Circuit High
DTC P3481 Buick – Cylinder 11 Deactivation/Intake Valve Control Circuit/Open
DTC P3482 Buick – Cylinder 11 Deactivation/Intake Valve Control Performance
DTC P3483 Buick – Cylinder 11 Deactivation/Intake Valve Control Circuit Low
DTC P3484 Buick – Cylinder 11 Deactivation/Intake Valve Control Circuit High
DTC P3485 Buick – Cylinder 11 Exhaust Valve Control Circuit/Open
DTC P3486 Buick – Cylinder 11 Exhaust Valve Control Performance
DTC P3487 Buick – Cylinder 11 Exhaust Valve Control Circuit Low
DTC P3488 Buick – Cylinder 11 Exhaust Valve Control Circuit High
DTC P3489 Buick – Cylinder 12 Deactivation/Intake Valve Control Circuit/Open
DTC P3490 Buick – Cylinder 12 Deactivation/Intake Valve Control Performance
DTC P3491 Buick – Cylinder 12 Deactivation/Intake Valve Control Circuit Low
DTC P3492 Buick – Cylinder 12 Deactivation/Intake Valve Control Circuit High
DTC P3493 Buick – Cylinder 12 Exhaust Valve Control Circuit/Open
Taking note that the list is continually evolving, with ongoing expansions to encompass a broader spectrum of OBD2 trouble codes.
In summary, this guide serves as a valuable resource for novice and experienced technicians, as well as automotive enthusiasts, by offering an extensive list of Buick OBD2 trouble codes.
Stay tuned for more informative content on maintaining and enhancing your automotive experience.