C3662 Diagnostic Trouble Code

C3662 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 C3662 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
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.
Defective ECU strategies or components will prevent proper regeneration

Repair Processes :

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. You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.

Process Tips

Diagnostic trouble code C3662 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 C3662.

Fortunately, C3662 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C3662 Trouble Code For Specific Cars

C3662 Citroen C-elysee Fuel Filler Door Circuit Open
C3662 Bugatti Eb112 Cylinder #4 High To Low Side Short
C3662 Horch Sachsering RF PARK LAMP OUTPUT CIRCUIT Short to Battery
C3662 Lancia Lybra Speed Wheel Sensor RR Input Open Circuit
C3662 Gmc Savana Park Brake Applied Warning Lamp Circuit Short To Battery
C3662 Mazda Millenia Turbocharger Boost Sensor B Circuit Malfunction
C3662 Trabant 601 Passenger Sid, Side mount Airbag Circuit Short to Ground