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Home >> Kia >> 2020 >> Optima EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 72 (Anti-Lock Brake System (Abs)) >> Troubleshooting >> ABS Does Not Operate >> Inspection Procedures >> Check The Power Source Circuit

Check The Power Source Circuit

WARNING: This page is about a different car, the 2020 Hyundai Kona. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the 38pin connector from the ABS HECU control module.
  2. Turn the ignition switch ON, measure the voltage between terminal 6 of the ABS control module harness side connector and body ground.

    Specification:  approximately B+

    G12602758Courtesy of HYUNDAI MOTOR AMERICA
  3. Is the voltage within specification?

    YES 

    • Check the ground circuit.

    NO 

    • Check the harness or connector between the fuse (10A) in the engine compartment junction block and the ABS control module. Repair if necessary.