Signal Circuit Inspection

■ Check short to ground in harness 

1. IG "OFF".
2. Disconnect APS connector and PCM connector.
3. Measure resistance between APS1 signal terminal of APS harness connector and chassis ground. (Measurement "A")
4. Measure resistance between APS1 signal and APS1 (2) ground terminals of APS harness connector. (Measurement "B")

   Specification:  Infinite

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

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

   Courtesy of HYUNDAI MOTOR AMERICA
5. Is the measured resistance within specification?

   YES 

   • Go to "Check open in harness" as follows.

   NO 

   • Repair short to ground in harness and go to "Verification of Vehicle Repair " procedure below.

■ Check open in harness 

1. IG "OFF" and disconnect APS connector and PCM connector.
2. Measure resistance between APS1 signal terminal of APS harness connector and APS1 signal terminal of ECM harness connector.

   Specification:  Approx. below 1 Ω.

   Fig 3: Measuring Resistance Between APS1 Signal Terminal Of APS Harness Connector And APS1 Signal Terminal Of ECM Harness Connector

   Courtesy of HYUNDAI MOTOR AMERICA
3. Is the measured resistance within specification?

   YES 

   • Go to "COMPONENT INSPECTION " procedure.

   NO 

   • Repair open in harness and go to "Verification of Vehicle Repair " procedure below.