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 Mitsubishi Eclipse Iii Autolamp Delay Circuit Short To Ground
C0102 Isuzu N-serie SCP (J1850) Invalid or Missing Data for Vehicle Configuration
C0102 Hyundai Coupe SCP (J1850) Invalid Data from GEM
C0102 Bentley Mark Vi Battery Saver Relay Coil Circuit Short To Battery
C0102 Lifan X60 Throttle Control Unit Throttle Position Malfunction
C0102 Pininfarina Osee EV Battery Pack Temperature Fault
C0102 Bentley Exp Battery Saver Power Relay Circuit Failure