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OBD II Fault Code

  • OBD II P2516

    OBD-II Code A/C may not operate is defined as a A/C Refrigerant Pressure Sensor "B" Circuit Range/Performance

    The Hybrid Powertrain Control Module uses multiple sensors in the A/C System to monitor A/C System Operation. The Hybrid Powertrain Control Module compares readings from these sensors to each other when the A/C System is not operating. If one of the sensors does not match the other sensors, code P2156 will set.The A/C System may be disabled.

    A/C may not operate Symptoms

    • A/C may not operate

    Common Problems That Trigger the P2516 Code

    • A/C pressure sensor failure
    • High voltage powertrain control module failure
    • Wiring issue
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