P0955

2017-10-10

Description:

  • The fault code P0955 indicates a problem with the auto shift manual mode circuit. This circuit is responsible for controlling the operation of the automatic transmission's auto shift manual mode, allowing the driver to manually shift gears. A fault in this circuit can result in the inability to engage or operate the auto shift manual mode.

Possible Symptoms:

  • Inability to engage or operate the auto shift manual mode

  • Malfunction or unresponsiveness of the manual shift function

  • Check Engine Light may illuminate

Possible Causes:

  • Faulty or damaged auto shift manual mode switch

  • Wiring issues, such as open or short circuits in the auto shift manual mode circuit

  • Faulty transmission control module (TCM)

  • Electrical connection problems, such as loose or corroded terminals

Related Parts:

  • Auto Shift:

Possible Solutions:

  • Inspect the auto shift manual mode switch for any signs of damage or wear. Replace the switch if necessary.

  • Check the wiring and connections in the auto shift manual mode circuit for any open circuits, short circuits, or damaged wires. Repair or replace the wiring as needed.

  • Test the transmission control module (TCM) for proper operation. If the TCM is faulty, it may need to be replaced or reprogrammed.

  • Inspect the electrical connections related to the auto shift manual mode circuit. Clean or repair any loose or corroded terminals.

Search