P0889

2017-10-10

Description:

  • The fault code P0889 indicates a range or performance issue in the power relay sense circuit of the transmission control module (TCM). This code typically points to a problem with the electrical circuitry or signal range within the power relay sense circuit.

Possible Symptoms:

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

  • Issues with transmission shifting, such as delayed or erratic shifting

  • Transmission stuck in a particular gear

  • Inability to shift gears

  • Reduced drivability due to the range or performance issue in the power relay sense circuit

Possible Causes:

  • Faulty power relay sense circuit

  • Wiring or connection problems in the power relay sense circuit

  • Loose or corroded connectors in the circuit

  • Faulty transmission control module (TCM)

  • Faulty engine control module (ECM) or other control modules

  • Intermittent issues with the power relay sense circuit

Related Parts:

  • Traction Control Module (TCM): Most modern vehicles are equipped with anti-lock brakes and traction control. Traction Control Module (TCM) is the part of the car computer that controls the electronic stability system (ESC) of the car. Problem leads to inefficient braking, ABS not working

Possible Solutions:

  • Inspect and repair any wiring or connection issues in the power relay sense circuit

  • Ensure the connectors in the circuit are securely connected and free from corrosion

  • Test and replace the faulty power relay sense circuit, if necessary

  • Test and replace the faulty transmission control module (TCM), if necessary

  • Test and replace the faulty engine control module (ECM) or other control modules, if necessary

  • Address any intermittent issues with the power relay sense circuit

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