Signal Circuit Inspection

Ignition "ON" & Engine "OFF".
Disconnect "BRAKE LAMP SWITCH" connector.
Measure voltage between terminal "1" of the sensor harness connector and chassis ground.
Specification: 0V

Fig 1: Measuring Voltage Between Terminal 1 Of Sensor Harness Connector And Chassis Ground
Courtesy of HYUNDAI MOTOR CO.
Is voltage within specifications?
YES
- Refer to COMPONENT INSPECTION .
NO
- Check for Short to power circuit in harness. Repair as necessary and refer to VERIFICATION OF VEHICLE REPAIR .