C3477 Trouble Code

View C3477 obd/2 error code description and symptoms. C3477 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 C3477

To check for an open circuit, trace along the length of the transmission control circuit, checking for breaks in the wiring. Repair any broken wiring and make sure all connectors are fully seated and locked.Pay close attention to connectors, looking for corrosion, bent or broken pins, or moisture in the connector. Repair any connector issues even if they are not specifically part of the transmission control circuit as they may serve a function in providing power to the transmission control circuit.

Difficulty Level (Soso)
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Repair Time (50 Min.)
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Cost Prediction : $ 40-75

C3477 Error Code Repair Process :

If your aux heater coolant sensor circuit open 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 C3477 and engine control unit are in charge of monitoring a bunch of different aux heater coolant sensor circuit open, and if they get a reading that's a little out of whack, up pops the check engine light.

Wrench Tool C3477 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 C3477

A common cause of code C3477 is the failure of Aux Heater Coolant Sensor Circuit Open, but there are several other possible causes as well, such as ;

C3477 code for all cars

You can view according C3477 DTC for your car model. We selected several models to see obd2 solutions click and view it.

+C3477 Porsche Coupe +C3477 Renault Fluence +C3477 Austin A99 +C3477 Pierce-arrow 8 +C3477 Toyopet Pt

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