P0812

2017-10-10

Description:

  • The fault code P0812 indicates an issue with the reverse input circuit. This fault code typically points to a problem with the electrical circuitry or connection associated with the reverse input, which is responsible for detecting when the vehicle is in the reverse gear.

Possible Symptoms:

  • Malfunction Indicator Lamp (MIL) or Check Engine Light illuminated

  • Inability to engage the reverse gear

  • Delayed or erratic engagement of the reverse gear

  • Potential limited vehicle drivability when reverse gear is required

Possible Causes:

  • Faulty reverse input sensor or switch

  • Wiring or connection problems in the reverse input circuit

  • Loose or corroded connectors in the transmission system

  • Faulty transmission control module (TCM)

  • Electrical or wiring issues in the transmission system

Related Parts:

  • Reverse Input Circuit:

Possible Solutions:

  • Test and replace the faulty reverse input sensor or switch, if necessary

  • Inspect and repair the reverse input circuit for any issues, such as damaged wires or connectors

  • Ensure the connectors in the transmission system are secure and free from corrosion

  • Test the transmission control module (TCM) for proper functionality and replace it if necessary

  • Inspect and repair any electrical or wiring issues in the transmission system

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