C0795 Diagnostic Trouble Code

C0795 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 C0795 diagnostic trouble code may include:

Engine surge
Blown fuse (if applicable)
Lack of power
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)
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve. 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 C0795 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 C0795.

Fortunately, C0795 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0795 Trouble Code For Specific Cars

C0795 Bristol 412 Crankshaft Position Camshaft Position Correlation (Bank 2 Sensor B)
C0795 Maserati Quattroporte Transmission Fluid Temperature Sensor Circuit Intermittent
C0795 Isuzu I-350
C0795 Tvr Griffith Power Door Unlock Circuit Failure
C0795 Lancia Zeta Steering Column Lock Switch Circuit Failure
C0795 Seat Ateca Injector Circuit Open / Shorted - Cylinder #2
C0795 Aster 18 Air Suspension RF Air Spring Solenoid Output Circuit Short To Ground