C0229 Diagnostic Trouble Code

C0229 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 C0229 diagnostic trouble code may include:

The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
Faulty or damaged wiring
Hesitation upon acceleration
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

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)
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code C0229 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 C0229.

Fortunately, C0229 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0229 Trouble Code For Specific Cars

C0229 Toyota Blade O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)
C0229 Mercedes B 180 ABS Hydraulic Pressure Differential Switch Input Short Circuit To Ground
C0229 Panther Kallista Driver Sid, Side mount Airbag Circuit Open
C0229 Mercedes-benz Ml Class Air Suspension Front Compressor Relay Circuit Short To Ground
C0229 Mercedes-benz W110 Air Suspension LF Air Spring Solenoid Output Circuit Failure
C0229 Mercury Messenger Air Suspension Rear Height Sensor High (SE) Signal Circuit Open
C0229 Audi Rs6 ASM Mode Circuit Low