C3647 Chevrolet Malibu 7 OBD Code

OBD/2 C3647 error code description and symptoms.

Vehicle Speed Sensor (VSS) Intermittent Indicates the powertrain control module (PCM) detected an error in the vehicle speed information. Vehicle speed data is received from either the vehicle speed sensor (VSS), transfer case speed sensor (TCSS), anti-lock brake system (ABS) control module, generic electronic module (GEM), or central timer module (CTM). This DTC is set the same way as C3647. However, it is intended to flash the transmission control indicator lamp (TCIL) for first time VSS circuit error/malfunctions. Refer to possible causes for C3647

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.

C3647 Chevrolet Malibu 7 Error Code Repair Process :

If your hydraulic fluid pressure/ flow 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 C3647 and engine control unit are in charge of monitoring a bunch of different hydraulic fluid pressure/ flow circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

Difficulty Level (Easy)
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Repair Time (20 Min.)
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Cost Prediction : $ 40-75

Common Causes of Chevrolet Malibu 7 C3647 OBD2 Code

A common cause of code C3647 is the failure of Hydraulic Fluid Pressure/ Flow Circuit Failure, but there are several other possible causes as well, such as ;
Wrench Tool C3647 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.

C3647 code for other Chevrolet cars

You can view according C3647 DTC for your car model. We selected several models to see obd2 solutions click and view it.

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

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