Ground Circuit Inspection

■ Check open in harness 

1. IG "OFF" and disconnect APS connector.
2. Measure voltage between APS1 power terminal of APS harness connector and chassis ground. (Measurement "A")
3. Measure voltage between APS1 power and APS1 ground terminals of APS harness connector. (Measurement "B")

   Specification:  Voltage difference between measurement "A" and "B" is below 200 mV.

   Fig 1: Measuring Voltage Between APS1 Power Terminal Of APS Harness Connector And Chassis Ground (Measurement A)

   Courtesy of HYUNDAI MOTOR AMERICA
   Fig 2: Measuring Voltage Between APS1 Power And APS1 Ground Terminals Of APS Harness Connector (Measurement B)

   Courtesy of HYUNDAI MOTOR AMERICA
4. Is the measured voltage within specification?

   YES 

   • Go to "COMPONENT INSPECTION " procedure.

   NO 

   • Repair contact resistance or open in harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.