Whether you’re a seasoned professional or an enthusiastic Fiat owner eager to decipher your vehicle’s language, this compilation is crafted to be a valuable resource. Join me as we unravel the codes that unveil crucial information about your Fiat’s health, providing insights into potential issues and guiding you toward effective diagnostic and repair solutions. Let’s delve into the realm of Fiat Diagnostic Trouble Codes together, empowering ourselves with the knowledge to keep these automotive marvels performing at their best!
DTC Manufacturer Specific Codes
DTC Fiat, OBD2 Powertrain Diagnostic Trouble Codes List:
P1046 Cylinder 1 Oil Supply Solenoid Valve Overcurrent
P1048 Cylinder 2 Oil Supply Solenoid Valve Overcurrent
P104A Cylinder 3 Oil Supply Solenoid Valve Overcurrent
P104C Cylinder 4 Oil Supply Solenoid Valve Overcurrent
P1101 MAF Sensor
P1106 MAP Sensor
P1107 MAP Sensor
P1111 Intake Air Temperature Sensor Malfunction
P1112 Intake Air Temperature Sensor
P1114 Coolant Temperature Sensor
P1115 Coolant Temperature Sensor
P1116 Coolant Temperature Sensor
P1117 Coolant Temperature Sensor
P1120 Throttle Actuator
P1121 Throttle Position Sensor
P1122 Throttle Potentiometer 2
P1125 Throttle Potentiometer A
P1128 Closed Loop Fueling Not Achieved – Bank 1 Upstream
P1130 Lambda Sensor
P1131 Too Lean Mixture
P1132 Too Rich Mixture
P1133 Lambda Sensor
P1134 Lambda Sensor
P1135 Lambda Sensor Heater 1
P113D O2 Sensor 1/1 Slow Response
P1141 Lambda Sensor Heater 1
P1153 Lambda Sensor
P1154 Lambda Sensor
P1155 Lambda Sensor Heater 2
P1161 Lambda Sensor Heater 2
P1170 Adaptation Factor
P1171 Lambda Sensor Integrator Diagnosis
P1172 Adaptation Factor
P1173 Adaptation Factor
P1175 Adaptation Factor
P1176 Adaptation Factor
P1185 General Pressure Sensor Correlation
P1201 Injector 1
P1202 Injector 2
P1203 Injector 3
P1204 Injector 4
P1205 GNV Injection Pressure Sensor
P1206 High air flow resistance in particulate filter (first level)
P1220 Throttle Potentiometer 1
P1221 Throttle Control
P1222 Accelerator Pedal Sensor 2
P1225 Throttle Potentiometer 2
P1230 Fuel Valve
P1231 Pump Motor Relay
P1239 Engine Oil Temperature Too Low
P1260 Theft Attempt
P1300 Crankshaft Position Sensor
P1314 Accelerometer for Misfire Detection
P1325 Knock Recognition Circuit
P1340 Camshaft Position Sensor
P1341 Phase Recognition via Software
P1345 Timing
P1351 Ignition System
P1352 Ignition Coil
P1353 Ignition Coil
P1361 Ignition System
P1400 EGR System
P1401 EGR System
P1405 EGR System
P1406 EGR System
P1408 EGR System
P1409 EGR System
P1443 Canister Valve
P1460 Air Conditioning
P1464 Air Conditioning
P1474 Low-Speed Fan
P1479 High-Speed Fan
P1481 PWM for Electrofan Control
P1490 Throttle Adaptation
P1500 Throttle Control Motor
P1503 Immobilizer
P1505 Idle Control System
P1514 Failure in Signal Requested to Light Diagnostic Lamp
P1523 VVA Low Oil Pressure
P1524 Oil Pressure Out Of Range – Camshaft Advance/Retard Disabled
P1530 Air Conditioning Pressure Sensor
P1531 Air Conditioning Relay
P1540 Air Conditioning Pressure Sensor
P1550 Motorized Throttle Backup Mode
P1555 Brake Switch
P1565 Cruise Control System
P1571 Brake Switch
P1574 Cruise Control System
P1600 ECU Memory Failure
P1602 A/D Converter (Analog/Digital)
P1604 ECU Malfunction
P1605 ECU Malfunction
P1606 Torque Supervision
P1607 PCM Internal Shutdown Timer Rationality
P1620 Reference Voltage
P1621 Reference Voltage
P1650 Hydraulic Power Steering Pressure Switch
P1651 Hydraulic Power Steering
P1653 Phase Variator
P1654 Variable Intake System
P1656 Fuel Pump Relay
P1658 Methane Injector
P1659 Cold Start Injector
P1660 ECO Indicator
P1661 Sport Indicator
P1662 Cruise Control Indicator
P1663 Coolant Temperature Sensor
P1664 Throttle Position Sensor
P1684 Throttle Adaptation
P1686 Throttle Adaptation
P1687 Throttle Adaptation
P1690 Safety Fuel Cut-Off
P1691 Safety Fuel Cut-Off
P1702 Automatic Transmission System
P1703 Engine Shutdown CAE
P1709 Clutch Pedal Switch
P1CC9 Unable To Engage Gear
P1CCA Boost Side EVAp Purge System Performance set active or stored
P1CEC Variable Valve Solenoid Valve Cold Start Closing Position 1 Timing Over-Retard
P1CED VAriable Valve Timing Solenoid Valve Cold Start Closing Position Timing Over-Advance
P1D7F ETC Self-Learning Failure
P1D98 Incorrect Gear Ratio Clutch B or D Defective
P1DAD Input Shaft-Output Shaft Direction Correlation
DTC Fiat, OBD2 Chassis/ABS Diagnostic Trouble Codes List:
C1001 Battery Voltage
C1003 Vehicle Speed Sensor – CAN Network – Implausible Signal
C1004 Failure Lamp – Lamp Anomaly
C1005 EPS Transient Failure ECU – Non-Critical Internal Anomaly
C1006 Torque Sensor – Steering Column Variation Greater Than 5°
C1007 Steering Motor – Self-Test Failure of Safety Function
C1008 ECU NVM Malfunction – NVM Memory Failure
C1009 ECU Failure – Internal Failure
C1010 Torque Sensor – Torque Above Maximum Limit
C1011 Steering Motor – Internal Failure – Motor and Circuit
C1012 -88 TPM Sensor Location Undetermined – BUS off
C1013 ECU Failure – Internal Failure
C1015 -88 Front/Rear Tire Pressure Sensor Location Undetermined
C124C ACC Disabled Due to ESP,
C125E ACC Sensor Adjustment Required
C1266 ACC Sensor Blinded
DTC Fiat, OBD2 Network/Wiring Bus Diagnostic Trouble Codes List:
U1002 CAN Interface – CAN Bus Inactive
U1424 Implausible Engine Torque Signal Received
U1600 Immobilizer Problem
U1601 CAN Failure
U1602 B-CAN Line
U1700 CAN Failure
U1702 CAN Communication Problem
U1706 CAN Failure
U1711 CAN Failure
U1716 CAN Failure
U1719 CAN Failure
U2199 Coolant Temperature Sensor Problem
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 Fiat OBD2 trouble codes.
Stay tuned for more informative content on maintaining and enhancing your automotive experience.