C0597 Diagnostic Trouble Code

C0597 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 C0597 diagnostic trouble code may include:

Faulty O2 Sensor
Lack of power
If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
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.
Fuel with a large percentage of sulfur will clog the DPF quickly

Repair Processes :

Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. 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. 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 C0597 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 C0597.

Fortunately, C0597 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C0597 Trouble Code For Specific Cars

C0597 Pontiac Grand Safari Exhaust Valve Control Solenoid Circuit Range/Performance (Bank 2)
C0597 Fiat Fullback Lamp Tail Output Circuit Open
C0597 Dodge Caravan Ignition Coil C Primary/Secondary Circuit Malfunction
C0597 Mazda Demio 2 Transmission Transfer Case Shift Motor Short Circuit To Battery
C0597 Cadillac Seville Dim Panel Increase Input Circuit Open
C0597 Mercedes-benz W196 Air Suspension LF Corner Down Timeout
C0597 Paterson Model 33 Driver Side Satellite Communication Circuit Short to Ground