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Home >> Kia >> 2015 >> Optima Hybrid >> Repair and Diagnosis >> Brakes >> Parking Brake System >> Electric Parking Brake Diagnosis - Optima HEV >> DTC C1646: CAN Signal Error TCU >> DTC Inspection >> Monitor GDS Data

Monitor GDS Data

  1. Connect Data Link Connector (DLC) to GDS.
  2. Check "Diagnostic Trouble Codes (DTC)" about AT using GDS.
    Fig 1: Select System Screen - Automatic Transaxle
    G00549236Courtesy of KIA MOTORS AMERICA, INC.
  3. AT system about related DTC exist?

    YES 

    • Repair according to DTC diagnostic guide of AT system.

    NO 

  4. Check the "Current Data" about related DTC with GDS.
    Fig 2: Current Gear & Shift Lever Switch Waveforms
    G00549251Courtesy of KIA MOTORS AMERICA, INC.
  5. Are the parameters displayed correctly?

    YES 

    • Fault might be intermittent caused by poor contact in the sensor's and/or ECU's connector or was repaired and ECU memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

    NO