C2112 Diagnostic Trouble Code

C2112 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 C2112 diagnostic trouble code may include:

Diminished fuel efficiency
Fuel pressure too high
Malfunction Indicator Lamp (MIL) illuminated
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
Faulty IMRC actuator/sensor

Repair Processes :

Look for damage to the tank indicating impact that may have damaged the fuel pump or sender. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. If you find a related TSB, the information will often help in diagnosing the code in question as TSBs are crested from many thousands of repairs.

Process Tips

Diagnostic trouble code C2112 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 C2112.

Fortunately, C2112 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2112 Trouble Code For Specific Cars

C2112 Suzuki Hustler MIL O/P Circuit Malfunction
C2112 Austin A99 Autolamp On Circuit Short To Ground
C2112 Lincoln V8 Throttle/Pedal Position Sensor/Switch B Circuit Malfunction
C2112 Alpine Coupe Air Bag Passenger Circuit Short to Ground - Loop #2
C2112 Mercedes-benz B Class Air Bypass Valve System
C2112 Citroen Jumper Ii Fuel Pulse In Range But Higher Than Expected
C2112 Ford Artic LF PARK LAMP OUTPUT CIRCUIT Short to Battery