C0578 Diagnostic Trouble Code

C0578 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 C0578 diagnostic trouble code may include:

Misfire
Misfire
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
Engine surge

Possible Causes :

Rusty exhaust systems, cracked exhaust manifolds or damaged or missing gaskets or donuts will cause air leaks.
An air leak forward of the DPF will change the sensor readings resulting in the code
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem. Find out what kind of system you have and verify that voltage to the fuel level sensor is present at the fuel pump wiring harness.

Process Tips

Diagnostic trouble code C0578 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 C0578.

Fortunately, C0578 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0578 Trouble Code For Specific Cars

C0578 Renault Nepta Heated Backlite Relay Short To Battery
C0578 Porsche 910 Front Wiper Select Switch "H" Short to Ground
C0578 Suzuki Cervo Memory Set Switch Circuit Failure
C0578 Aston Martin 2-litre Air Suspension RF Height Sensor Circuit Failure
C0578 Ford Thunderbird Mirror Passenger Vertical Switch Circuit Short To Ground
C0578 Pontiac 28 Exhaust Not Warm, Downstream O2 Sensor
C0578 Renault Thalia HO2S Heater Control Circuit (Bank 2 Sensor 2)