C2813 Diagnostic Trouble Code

C2813 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 C2813 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.
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

Fuel with a large percentage of sulfur will clog the DPF quickly
The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
An air leak forward of the DPF will change the sensor readings resulting in the code

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. Replace the oxygen sensor that is downstream from the catalytic converter on the side of the engine that does not contain cylinder #1. Also, if a oxygen sensor code stating "heater circuit malfunction" the sensor has most probably failed. If all testing has passed so far yet you still have the same code, check your scan tool and see if it can open and close the IMRC valve.

Process Tips

Diagnostic trouble code C2813 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 C2813.

Fortunately, C2813 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C2813 Trouble Code For Specific Cars

C2813 Ds Ds 3 Ignition Tamper Circuit Short To Ground
C2813 Austin A30 Autolamp Delay Decrease Circuit Short To Ground
C2813 Audi Variant Audio Rear Integrated Control Panel Unit is Not Responding
C2813 Lon Boll 12 Timing Reference High Resolution Signal B Too Few Pulses
C2813 Tesla S Mismatched PCM and/or ABS-TC Module
C2813 Mahindra Cl Traction Control Valve Rear Circuit Open
C2813 Gray Model O Passenger Rear Door Ajar Circuit Open