C1663 Diagnostic Trouble Code

C1663 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 C1663 diagnostic trouble code may include:

Rich or lean exhaust
Fuel pressure too low
Engine surge
The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.

Possible Causes :

Rough running engine due to misfiring plugs. Many engines have misfire codes to indicate the cylinder effected, such as P0307 for number 7.
Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
Faulty IMRC actuator relay (if equipped)

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. Once located, visually inspect the connectors and wiring. Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors.

Process Tips

Diagnostic trouble code C1663 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 C1663.

Fortunately, C1663 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.

C1663 Trouble Code For Specific Cars

C1663 Nissan Pino Cooling Fan Circuit Over Current
C1663 Daihatsu Mira Generator Lamp "L" Control Circuit Malfunction
C1663 Fiat Berline Lamp Headlamp High-Beam Circuit Short To Ground
C1663 Peugeot 107 Dynamic Stability Control Right Front Valve Malfunction
C1663 Jensen 4-litre Seat Driver Recline Forward Circuit Short To Battery
C1663 Ford Torino Mirror Switch Assembly Circuit Short to Ground
C1663 Horch 3.5 RF LAMP HIGH BEAM CIRCUIT Short to Battery