C0052 Diagnostic Trouble Code

C0052 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 C0052 diagnostic trouble code may include:

The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Faulty or damaged wiring
Hesitation upon 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.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

If the scan tool has that capability, and the scan tool can operate the IMRC valves, then the problem is either resolved and a simple code clearing is all that's left or a new PCM would be called for. 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 C0052 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 C0052.

Fortunately, C0052 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0052 Trouble Code For Specific Cars

C0052 Overland 42 Double Locking Door Motor Frozen
C0052 Imperial Le Baron SCP (J1850) Invalid or Missing Data for Experimental #1
C0052 Reliant Se6 Gate Select Position Circuit High
C0052 Land Rover Series Ii Switch input Circuit Short to Gnd
C0052 Kia K2700 Seat Switch Reference Voltage Positive Common Supply Voltage Fault
C0052 Isotta-fraschini 100 Hp SCP (J1850) Invalid or Missing Data for Restraints
C0052 Suzuki Fronte