C2037 Diagnostic Trouble Code

C2037 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 C2037 diagnostic trouble code may include:

Corroded or damaged connector
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Lack of power
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
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 :

Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness. 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.

Process Tips

Diagnostic trouble code C2037 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 C2037.

Fortunately, C2037 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2037 Trouble Code For Specific Cars

C2037 Fiat 133 Knock Sensor 2 Circuit Range/Performance (Bank )
C2037 Paykan Samand Driver's / Passenger's Door Ajar Output Circuit Short to Battery
C2037 Daihatsu Rocky Glow Plug Circuit High Side, High Input
C2037 Mercury Cougar Air Suspension LR Air Spring/Shock Solenoid Output Circuit Open
C2037 Willys-overland 77
C2037 Mitsubishi Galant Autolamp Delay Increase Circuit Failure
C2037 Holden Rc Colorado Power To A/C Clutch Circuit Overcurrent