P0C23 Diagnostic Trouble Code

P0C23 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 P0C23 diagnostic trouble code may include:

Lack of power
Faulty O2 Sensor
Poor acceleration
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)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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.

Process Tips

Diagnostic trouble code P0C23 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 P0C23.

Fortunately, P0C23 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P0C23 Trouble Code For Specific Cars

P0C23 Healey Sportsmobile Passengers Seat Belt Buckle Switch Circuit Open
P0C23 Chevrolet Vectra Engine Coolant sensor out of range/ECT Sensor Out Of Self Test Range
P0C23 Austin A60 Autolamp Delay Increase Circuit Short To Ground
P0C23 Honda Hp-x PRNDL Switch Circuit Failure
P0C23 Daewoo Musson Gauge Driver Circuit Fault
P0C23 Toyota Echo O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)
P0C23 Holden Lx Power Steering Pressure Sensor Circuit Range/Performance