C3685 Trouble Code

View C3685 obd/2 error code description and symptoms. C3685 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 long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

C3685 Error Code Repair Process :

The scent may C3685 signal oil or coolant leaking from their normally closed-loop systems, or it may indicate dangerous exhaust gases invading your car's interior. Car and truck exhaust contains toxic gases such C3685, so if the inside of your car speed wheel sensor rf input short circuit to ground as if you were standing behind your car, get out and get it fixed. Fight the urge to take a little nap first. So sleepy. That's the carbon monoxide talking, friends. At least open a window on your way to the shop.

C3685 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 C3685

A common cause of code C3685 is the failure of Speed Wheel Sensor RF Input Short Circuit To Ground, but there are several other possible causes as well, such as ;

Damaged ECM
Faulty starter motor
Intake Valve Timing Control Solenoid Valve harness is open or shorted
Faulty Fuel injector

C3685 code for all cars

You can view according C3685 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3685 Chevrolet Chevette

+C3685 Hsv Maloo

+C3685 Ginetta G15

+C3685 Mercedes-benz 280

+C3685 Amc Hornet

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

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