C0477 Trouble Code

View C0477 obd/2 error code description and symptoms. C0477 engine photo

The Transmission Fluid Pressure Switch allows the engine's control module (PCM) or Transmission Control Module (TCM) to use hydraulic fluid to engage the clutches in the transmission to allow for smoother shifting while driving. If the PCM or TCM detects an issue with the hydraulic clutch or the pressure switch, the PCM or TCM will set code C0477

On some transmissions, such as automated manual transmissions or automatic transmissions with manual mode, the GSP switch lets the TCM know whether or not the driver has selected automatic or manual function. On manual transmissions, the GSP switch informs the TCM which gear the driver is selecting, and may function as a neutral safety switch, depending on system design. The TCM also uses the gate select position switch to monitor transmission operation. For example, if the driver selects manual mode and selects 3rd gear on an automatic transmission, the TCM may monitor speed sensors to detect clutch and brake slippage.

C0477 Error Code Repair Process :

If your seat switch lumbar deflate 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 C0477 and engine control unit are in charge of monitoring a bunch of different seat switch lumbar deflate circuit failure, and if they get a reading that's a little out of whack, up pops the check engine light.

C0477 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 C0477

A common cause of code C0477 is the failure of Seat Switch Lumbar Deflate Circuit Failure, but there are several other possible causes as well, such as ;

Continuous oil flow to the VCT piston chamber
Faulty spark plug (s)
Fuel pressure
Fuel tank leaking

C0477 code for all cars

You can view according C0477 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C0477 Rochet-schneider 12

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