C0575 Diagnostic Trouble Code

C0575 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 C0575 diagnostic trouble code may include:

Faulty or damaged wiring
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
Poor fuel economy
Engine surge

Possible Causes :

Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.

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. Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.

Process Tips

Diagnostic trouble code C0575 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 C0575.

Fortunately, C0575 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0575 Trouble Code For Specific Cars

C0575 Audi 100 Alarm Panic Input Circuit Short To Ground
C0575 Fiat 508 Lamp Backup Switch Input Circuit Short To Battery
C0575 Bentley Arnage Battery Power Relay Circuit Short To Ground
C0575 De Dion Bouton 8 Hp HO2S Heater Resistance (Bank 2 Sensor 3)
C0575 Mg K3 Air Suspension RR Height Sensor Circuit Open
C0575 Gaz Chaika O2 Sensor Circuit Slow Response (Bank 2 Sensor 1)
C0575 Honda Jazz Pump Rotor Control Underfueling