C0372 Diagnostic Trouble Code

C0372 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 C0372 diagnostic trouble code may include:

Vacuum leak on the engine
Reduction in engine performance, especially at low RPM levels
Engine surge
Poor acceleration

Possible Causes :

Dirty air cleaner element Damaged DPF
A plugged converter will cause of host of driveability problems as well as set this code. A severely plugged converter will result in the inability to increase rpm when under load. Look for a code such as P0421 -- catalytic converter efficiency below threshold if the converter indicating a faulty converter.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)

Repair Processes :

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. Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.

Process Tips

Diagnostic trouble code C0372 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 C0372.

Fortunately, C0372 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0372 Trouble Code For Specific Cars

C0372 Mercedes Cl 55 ABS Inlet Valve Coil RF Circuit Open
C0372 Pontiac Pathfinder Fan Secondary High With Fan(s) Off
C0372 Maserati Racing Transmission Fluid Temperature Sensor Circuit Malfunction
C0372 Citroen C-elysee Fuel Filler Door Circuit Open
C0372 Fiat Esv Lamp Seat Belt Circuit Short To Battery
C0372 Hal Tourer Passenger Side Crash Sensor Internal Fault
C0372 Oka City Cylinder 4 Injector Circuit High