C0527 Diagnostic Trouble Code

C0527 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 C0527 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 :

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. 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.

Process Tips

Diagnostic trouble code C0527 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 C0527.

Fortunately, C0527 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0527 Trouble Code For Specific Cars

C0527 Chevrolet Ss Electrodrive Fan 1 Operational Failure (Driver Side)
C0527 Opel Cd Decklid Punch-Out Sensor Battery Short
C0527 Honda Life
C0527 Suzuki Verona Mirror Driver Up Circuit Open
C0527 De Soto Custom Hold Switch Circuit Malfunction
C0527 Mercedes Sl 400 Air Bag Crash Sensor #2 Feed/Return Circuit Open
C0527 Toyota Publica Park Brake Switch # 1 Released Circuit Short to Gnd