Signal Circuit Inspection

■ Check short to ground in harness 

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

   Specification:  Infinite

5. Is the measured resistance within specification?

   YES 

   • Go to "Check open in harness" below.

   NO 

   • Repair short to ground in harness and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

■ Check open in harness 

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

   Specification:  Approx. below 1Ω

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.