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Home >> Hyundai >> 2009 >> Genesis 3.8 >> Repair and Diagnosis >> Brakes >> Traction Control >> ESC (Electronic Stability Control) System >> Problem Symptoms Table >> ABS Does Not Operate (Intermittently) >> Inspection Procedures >> 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 39 of the ESC control module harness side connector and body ground when brake pedal is depressed.

    Specification:  approximately B+

  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.
Fig 1: Measuring Voltage Between Terminal 39 Of ESC Control Module Harness Side Connector And Body Ground
G06101195Courtesy of HYUNDAI MOTOR CO.
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