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Home >> Kia >> 2020 >> Optima EX >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System (Abs) (Except HEV) >> Troubleshooting >> Standard Flow Of Diagnostic Troubleshooting >> Inspection Procedures >> Overview

Inspection Procedures: Overview

DTC Inspection 

  1. Connect the KDS with the data link connector and switch "ON" the ignition.
  2. Verify that the DTC code is set off.

    Is the DTC code set off?

    NO 

    • Check the power source circuit.

    YES 

    • Erase the DTC and recheck using KDS.


DTC Inspection 

  1. Connect the KDS with the data link connector and switch "ON" the ignition.
  2. Verify that the DTC code is set off.

    Is the DTC code set off?

    NO 

    • Check the wheel speed sensor circuit.

    YES 

    • Erase the DTC and recheck using KDS.


Check The Power Supply Circuit For The Diagnosis 

  1. Measure the voltage between terminal 9 of the data link connector and body ground.

    Specification:  approximately B+

    Is voltage within specification?

    YES 

    • Check the ground circuit for the diagnosis.

    NO 

    • Repair an open in the wire. Check and replace fuse (15A) from the engine compartment junction block.
G12917155Courtesy of KIA MOTORS AMERICA, INC.


Check for Continuity in the CAN Line 

  1. Disconnect the connector from the ABS control module.
  2. Check for continuity between terminals 26, 14 of the ABS control module connector and 3, 11 of the data link connector.

    Is there continuity?

    YES 

    • Check the power source of ABS control module.

    NO 

    • Repair an open in the wire.