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OBD II Fault Code

  • OBD II P2184

    OBD-II Code Decreased engine performance is defined as a Engine Coolant Temperature Sensor 2 Circuit Low

    The Engine Coolant Temperature Sensor measures the temperature of the coolant going through the engine. If the engine's control module (PCM) detects an electrical fault in the Engine Coolant Temperature Circuit, the PCM will set code P2184.

    Decreased engine performance Symptoms

    • A/C may not operate
    • Decreased engine performance
    • Increased fuel consumption

    Common Problems That Trigger the P2184 Code

    • Engine coolant temperature (ECT) sensor failure
    • Powertrain Control Module (PCM) failure
    • Wiring issue

    Common Repairs Needed for the P2184 Code

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