P0951

2017-10-10

Description:

  • The fault code P0951 indicates a range/performance issue in the auto shift manual control circuit. This circuit is responsible for controlling the operation of the automatic shift manual mode, allowing the driver to manually shift gears. A range/performance issue in this circuit can lead to improper functioning or erratic behavior of the auto shift manual control system.

Possible Symptoms:

  • Check Engine Light illuminated

  • Erratic behavior of the auto shift manual control system

  • Difficulty or inability to shift gears manually in the automatic shift manual mode

  • Malfunction or unresponsiveness of the auto shift manual control switch

Possible Causes:

  • Faulty auto shift manual control switch

  • Wiring or connection issues in the auto shift manual control circuit

  • Faulty transmission control module (TCM)

  • Incorrect programming or calibration of the TCM

Related Parts:

  • Auto Shift:

Possible Solutions:

  • Inspect the auto shift manual control switch for any signs of damage or malfunction. If necessary, replace the switch.

  • Check the wiring and connections in the auto shift manual control circuit for any damage, corrosion, or loose connections. Repair or replace as needed.

  • Ensure that the battery voltage is within the proper range. Low battery voltage or voltage fluctuations can affect the performance of the circuit.

  • If the above steps do not resolve the issue, further diagnosis of the transmission control module (TCM) may be necessary. This may involve checking for software updates, reprogramming, or replacing the TCM.

  • It is recommended to consult a professional mechanic or dealership for accurate diagnosis and appropriate repairs.

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