P04C5 Diagnostic Trouble Code

P04C5 is a kind of OBD-II Diagnostic P-Powertrain 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 P04C5 diagnostic trouble code may include:

Hesitation upon acceleration
Excessive exhaust leak
Rich or lean exhaust
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

An air leak forward of the DPF will change the sensor readings resulting in the code
Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
Some aftermarket accessories and performance modifications

Repair Processes :

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. 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. If the engine displays a miss and there wasn't a code, determine which cylinder is misfiring. If the exhaust manifold is visible, spay or pour a small amount of water on each cylinder exhaust port. Water will evaporate immediately on good cylinders and slowly on the missing cylinder. If this can't be accomplished pull the plugs and check the condition.

Process Tips

Diagnostic trouble code P04C5 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 P04C5.

Fortunately, P04C5 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P04C5 Trouble Code For Specific Cars

P04C5 Shelby Cobra Intake Air Temperature Circuit High Input
P04C5 Frazer Nash Fast Not in P or N During KOEO / KOER
P04C5 Great Wall H6 Passenger Rear Seat Up Switch Circuit Short to Battery
P04C5 Volkswagen Type 3
P04C5 Oldsmobile Delta Cylinder 8 Misfire Detected
P04C5 Dodge Dakota Ignition Coil I Primary/Secondary Circuit Malfunction
P04C5 Chery J1 DPFE Circuit High Input