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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (2 Of 3) (PHEV) >> DTC P0533-00: A/C Refrigerant Pressure Sensor 'A' Circuit High Input >> Wiring Inspection >> Ground Circuit Inspection
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Ground Circuit Inspection

  1. Ignition "OFF" and disconnect A/C pressure transducer connector and ECM/PCM connector.
  2. Measure resistance between Pin No. 1 (Ground) terminal of A/C pressure transducer harness connector and Pin No. 50 (Ground) terminal of ECM/PCM harness connector.

    Specification:  Approx. 1Ω

  3. Is the measured resistance within specification?

    YES 

    • Go to "Signal Circuit Inspection" procedure below.

    NO 

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