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Home >> Kia >> 2020 >> Optima SX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 31 (Dual Clutch Transmission Diagnosis - 1.6L (2 Of 2) (Except HEV)) >> DTC P0901-78: Clutch 1 System Reference Position Failure >> Component Inspection >> Notes

Component Inspection: Notes

WARNING: This page is about a different variant/trim than selected.
  1. Ignition "OFF"
  2. Connect KDS to Data Link Connector (DLC).
  3. Ignition "ON"
  4. Perform "Lug Alignment" in "Actuation Test" with KDS.

    Specification:  Check for operation sound

    G12937043Courtesy of KIA MOTORS AMERICA, INC.
  5. Perform "Gear Actuator Reference Check" in "Actuation Test" with KDS.

    Specification:  Check for operation sound

    G12937044Courtesy of KIA MOTORS AMERICA, INC.
  6. Is displayed parameter 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, repair or replace Gear select assembly and then go to "VERIFICATION OF VEHICLE REPAIR " procedure. (Perform "DCT Learning" in "Vehicle S/W Management" with KDS.)
    • Replace "DCT" and then go to "VERIFICATION OF VEHICLE REPAIR " procedure. (Perform "DCT Manual Input Function (Transmission Exchange)" in "Vehicle S/W Management" with KDS.)