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 Mitsubishi Sapporo Aux Heater Fuel Pump Circuit Open
C1663 Bentley Exp Battery Saver Power Relay Circuit Failure
C1663 Kia Venga Servo Motor Coolair Bypass Circuit Failure
C1663 Glas S Park / Neutral Switch Input Circuit
C1663 Vauxhall Vectra Pressure Control Solenoid C Intermittent
C1663 Datsun 1000 Heater Blower Relay Circuit Failure
C1663 Wiesmann Gt SCP (J1850) Invalid or Missing Data for Network Control