C0223 Diagnostic Trouble Code

C0223 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 C0223 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
Hesitation upon acceleration

Possible Causes :

Some aftermarket accessories and performance modifications
A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
An air leak forward of the DPF will change the sensor readings resulting in the code

Repair Processes :

Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector. 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 C0223 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 C0223.

Fortunately, C0223 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0223 Trouble Code For Specific Cars

C0223 Alpine A610 Air Bag Passenger Circuit Short To Battery
C0223 Great Wall Voleex C30 Passenger Seat Occupant Detection Circuit Short To Ground
C0223 Mercedes-benz W123 Air Suspension LF Air Spring Solenoid Output Circuit Short To Battery
C0223 Datsun Laurel HO2S Heater Control Circuit (Bank 2 Sensor 1)
C0223 De Dion Bouton 25 Hp HO2S Heater Resistance (Bank 2 Sensor 1)
C0223 Mitsubishi Cordia Audio Single-Disc CD Player Thermal Shutdown Fault
C0223 Lotus Exige Traction Control Motor Coherency Fault