C0476 Diagnostic Trouble Code

C0476 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 C0476 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
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)
Dirty air cleaner element Damaged DPF

Repair Processes :

Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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. It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.

Process Tips

Diagnostic trouble code C0476 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 C0476.

Fortunately, C0476 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0476 Trouble Code For Specific Cars

C0476 Tvr Tuscan Power Steering Pressure Sensor Circuit Low Input
C0476 Ford Fiesta MIL O/P Circuit Malfunction
C0476 Shanghai Sedan Insufficient Engine Speed Increase During Self Test
C0476 Opel Tigra B Door Handle Right Front Short To Ground
C0476 Morgan Plus 4 Brake Fluid Level Sensor Input Short Circuit To Ground
C0476 Alfa Romeo Ar Accelerometer Sensor Circuit Open
C0476 Suzuki Sx4 I Mirror Driver Switch Assembly Circuit Short To Battery