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Home >> Kia >> 2020 >> 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) >> Component Inspection

Component Inspection

  1. Ignition "OFF"
  2. Connect KDS to Data Link Connector(DLC).
  3. Ignition "ON"
  4. Perform each "Shift Control Solenoid Valve" in "Actuation Test" with KDS.
  5. Monitor each "Shift Control Solenoid Valve" parameter in "Current Data" with KDS.

    Specification:  Refer to Figure below

    G13372557Courtesy of KIA MOTORS AMERICA, INC.
    G13372558Courtesy of KIA MOTORS AMERICA, INC.
    G13372559Courtesy of KIA MOTORS AMERICA, INC.
    G13372560Courtesy of KIA MOTORS AMERICA, INC.
    G13372561Courtesy of KIA MOTORS AMERICA, INC.
    G13372562Courtesy of KIA MOTORS AMERICA, INC.
    G13372563Courtesy of KIA MOTORS AMERICA, INC.
  6. Is measured value within specification?

    YES 

    • Fault might be intermittent and caused either by poor contact in connectors or wiring harness, or it has been repaired and control module memory is not cleared yet. Thoroughly check terminal of battery, all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.
    • Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO 

    • Carefully re-do this troubleshooting guide steps.
    • If problem still occurs, replace PCM/TCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.