C0825 Diagnostic Trouble Code

C0825 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 C0825 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Diminished fuel efficiency

Possible Causes :

Faulty IMRC actuator/sensor
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. 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. 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.

Process Tips

Diagnostic trouble code C0825 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 C0825.

Fortunately, C0825 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0825 Trouble Code For Specific Cars

C0825 Proton Gen Fuel Sender Circuit Open
C0825 Alfa Romeo Arna Accessory Delay Relay Coil Circuit Failure
C0825 Marcos Mini-marcos Transmission 4-Wheel Drive High Indicator Short Circuit To Battery
C0825 Buick Riviera Cylinder Head Temp Sensor Low Input
C0825 Morris Fourteen Brake Pedal Switch Circuit Malfunction
C0825 Mazda Axela Transmission Transfer Case Contact Plate Power Short To Ground
C0825 Shanghai 760 Insufficient Engine Speed Decrease During Self Test