C3666 Trouble Code

View C3666 obd/2 error code description and symptoms. C3666 engine photo

The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve.
The current throttle valve opening is based on the driver's input from the gas pedal. The ECM uses the information from this sensor to help calculate fuel delivery and spark timing.

As the engine heats up and combustion becomes easier and more complete, the PCM will command the idling control valve to increase the amount of air entering the engine to suit the changing conditions. However, when the load on the engine changes, say, when some electrical consumers or other systems are either turned on or off, the PCM adapts the signal voltage to the idle control valve to ensure that the idling speed remains stable, and at the RPM specified by the manufacturer.

C3666 Error Code Repair Process :

If your park brake switch # 2 applied circuit failure check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system C3666 and engine control unit are in charge of monitoring a bunch of different park brake switch # 2 applied circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

C3666 is a kind of Chassis Trouble Code

Diagnosing chassis noises can be one of the most frustrating problems technicians face. Fortunately, manufacturers have engineered noise, vibration and harshness (NVH) diagnostic techniques and equipment to find the source of the noise.

Common Causes of C3666

A common cause of code C3666 is the failure of Park Brake Switch # 2 Applied Circuit Failure, but there are several other possible causes as well, such as ;

Damaged ECM
Camshaft Position Sensor harness is open or shorted
Incorrect fuel pressure
Radio frequency interference (RFI)

C3666 code for all cars

You can view according C3666 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3666 Pierce-arrow Series

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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