C0682 Diagnostic Trouble Code

C0682 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 C0682 diagnostic trouble code may include:

The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Faulty PCM
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
Diminished fuel efficiency

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio. 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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.

Process Tips

Diagnostic trouble code C0682 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 C0682.

Fortunately, C0682 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0682 Trouble Code For Specific Cars

C0682 Maserati Buran Transmission Fluid Pressure Sensor/Switch C Circuit Range/Performance
C0682 Aston Martin Am Vantage Air Suspension RF Height Sensor Circuit Short To Battery
C0682 Overland 42 Double Locking Door Motor Frozen
C0682 Daihatsu Micros Generator Field "F" Control Circuit Malfunction
C0682 Tvr Tamora Power Steering Failure
C0682 Rochdale Olympic Hydraulic Oil Temperature Sensor Range/Performance
C0682 Citroen Ds4 Fuel Level Sensor B Circuit Malfunction