LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle System Diagnosis (PHEV) >> DTC P0880: TCM Power Signal Error Open/Short (GND) >> Wiring Inspection >> Ground Circuit Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Ground Circuit Inspection

  1. Ignition "OFF".
  2. Disconnect Battery (-) terminal.
  3. Refer to TRANSAXLE CONTROL MODULE (TCM) and disconnect PCM/TCM connector.
  4. Measure resistance between Pin No. 45 (Ground) terminal of PCM/TCM harness connector and chassis ground.
  5. Measure resistance between Pin No. 46 (Ground) terminal of PCM/TCM harness connector and chassis ground.

    Specification  : Approx. below 1Ω

  6. Is the measured value within specification?

    YES 

    NO