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OBD II Fault Code

  • OBD II P0189

    OBD-II Code Powertrain Control Module (PCM) failure is defined as a Fuel Temperature Sensor "B" Circuit Intermittent

    The Fuel Temperature Sensor tells the engine control module (PCM) the temperature of the fuel. When the PCM detects an implausible signal from the Fuel Temperature Sensor, the PCM will set code P0189.

    Common Problems That Trigger the P0189 Code

    • Fuel temperature sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

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