P0C12 Diagnostic Trouble Code

P0C12 is a kind of OBD-II Diagnostic P-Powertrain 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 P0C12 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
Diminished fuel efficiency

Possible Causes :

The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture.
Defective ECU strategies or components will prevent proper regeneration
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code P0C12 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 P0C12.

Fortunately, P0C12 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0C12 Trouble Code For Specific Cars

P0C12 Volvo S80
P0C12 Suzuki Cultus Memory Set Switch Circuit Short To Battery
P0C12 Holden Hd Power Door Memory Lock Relay Circuit Open
P0C12 Toyota Xyr Passenger Seatback Rearward Switch Circuit Short to Ground
P0C12 Riley Sprite Hydraulic Fluid Pressure/ Flow Circuit Short to Vbatt
P0C12 Chevrolet Cavalier Driver Power Window One Touch Window Relay Circuit Short To Battery
P0C12 Toyota Cynos O2 Sensor Circuit Slow Response (Bank 2 Sensor 2)