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Home >> Hyundai >> 2015 >> Azera Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control (ESC) System >> Troubleshooting >> ABS Does Not Operate (Intermittently) >> Inspection Procedures >> DTC Inspection >> Check The Stop Lamp Switch Circuit

Check The Stop Lamp Switch Circuit

  1. Check that stop lamp lights up when brake pedal is depressed and turns off when brake pedal is released.
  2. Measure the voltage between terminal 23 of the ESC control module harness side connector and body ground when brake pedal is depressed.

    Specification:  approximately B+

    Fig 1: Measuring Voltage Between ESC Control Module Harness Side Connector Terminal And Body Ground
    G10368235Courtesy of HYUNDAI MOTOR AMERICA
  3. Is the voltage within specification?

    YES 

    • Check the hydraulic circuit for leakage.

    NO 

    • Repair the stop lamp switch. Repair an open in the wire between the ESC control module and the stop lamp switch.
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