C3102 Diagnostic Trouble Code

C3102 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code.

It is considered generic because it applies to all makes and models of vehicles, although specific repair steps may be different depending on your car model.

Symptoms

Symptoms of a C3102 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed.

Process Tips

Diagnostic trouble code C3102 is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.

Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before C3102.

Fortunately, C3102 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3102 Trouble Code For Specific Cars

C3102 Mg Rv11 Air Temperature External Sensor Circuit Short To Ground
C3102 Volkswagen Caddy Remote Open/Close signal Circuit Short to Ground
C3102 Hyundai Xg30
C3102 Lincoln Sentinel Throttle/Pedal Position Sensor/Switch B Circuit Intermittent
C3102 Mercedes A 200 ABS Functions Temporarily Disabled
C3102 Renault Latitude Hazard Flash Output Circuit Open
C3102 Gmc Sierra Park Brake Switch # 1 Applied Circuit Failure