C0102 Diagnostic Trouble Code

C0102 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 C0102 diagnostic trouble code may include:

Cherry red hot catalytic converter
Poor acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Rich or lean exhaust

Possible Causes :

Faulty IMRC actuator relay (if equipped)
A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.

Process Tips

Diagnostic trouble code C0102 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 C0102.

Fortunately, C0102 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0102 Trouble Code For Specific Cars

C0102 Turcat-mery 14 Pedal Forward / Rearward Potentiometer Feedback Circuit Short to Battery
C0102 Bristol 402 Cooling Fan Driver Fault
C0102 Mercury Grand Marquis Air Suspension LR Corner Up Timeout
C0102 Toyota Prius 4 Park Brake Actuator Assembly Switch Released Circuit Failure
C0102 Cadillac Fleetwood Decklid Release Circuit Short To Battery
C0102 Infiniti G20 SCP (J1850) Invalid or Missing Data for Experimental #4
C0102 Renault Vel Satis HO2S Heater Control Circuit Low (Bank 2 Sensor 2)