P04D6 Diagnostic Trouble Code

P04D6 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 P04D6 diagnostic trouble code may include:

Blown fuse (if applicable)
Engine surge
Reduction in engine performance, especially at low RPM levels
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected

Possible Causes :

A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
Faulty IMRC actuator relay (if equipped)
Dirty air cleaner element Damaged DPF

Repair Processes :

Now, clear the codes and test-drive the vehicle to see if the code is reset. 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. Oxygen sensors signal the engine management computer the amount of oxygen present in the exhaust, which is used in determining and controlling the fuel ratio.

Process Tips

Diagnostic trouble code P04D6 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 P04D6.

Fortunately, P04D6 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

P04D6 Trouble Code For Specific Cars

P04D6 Wartburg 1.3
P04D6 Delahaye Break Hydraulic Pressure Sensor Circuit Intermittent
P04D6 Volvo S40
P04D6 Rene-bonnet Le Mans HO2S Heater Resistance (Bank 2 Sensor 2)
P04D6 Ginetta G3 Open Power To Ground VCRM
P04D6 Peugeot 107 Dynamic Stability Control Right Front Valve Malfunction
P04D6 Lexus Rx TFP Valve Position Switch Circuit/ Transmission 4-Wheel Drive Low Indicator Short Circuit To Battery