Signal Circuit Inspection (Brake Pedal isn't Pressed)

■ Open or Short Check 

1. IG "ON".
2. Measure voltage between brake light switch terminal of the AHB harness connector and chassis ground.

   Specification:  Brake Light Switch - 0V

   Fig 1: Measuring Voltage Between Brake Light Switch Terminal Of AHB Harness Connector And Chassis Ground

   Courtesy of HYUNDAI MOTOR AMERICA
3. Is the measured value within specifications?

   YES 

   • Go to "SIGNAL CIRCUIT INSPECTION (BRAKE PEDAL IS PRESSED) " procedure.

   NO 

   • Check for open or blown fuse referring to "Circuit Diagram".
   • Repair open or short in power circuit between battery and AHB harness connector and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.