C3205 Diagnostic Trouble Code

C3205 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 C3205 diagnostic trouble code may include:

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
Faulty or damaged wiring
Hesitation upon acceleration
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)
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble. 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.

Process Tips

Diagnostic trouble code C3205 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 C3205.

Fortunately, C3205 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3205 Trouble Code For Specific Cars

C3205 Iso Lele SCP (J1850) Invalid or Missing Data for Remote Button Control
C3205 Mercedes S 280 Accessory Delay Relay Contact Short To Battery
C3205 Daewoo No 1
C3205 Jaguar Xj-12 Seat Driver Front Up Circuit Short To Ground
C3205 Ssangyong Stavic Lamp Headlamp Input Circuit Failure
C3205 Aixam Evolution ABS Outlet Valve Coil LR Circuit Short To Battery
C3205 Frazer Nash Sebring NVM Alarm Data Failure