Signal Circuit Inspection

NOTE: Check for open or short circuit in harness. Refer to "SIGNAL WAVEFORM & DATA " in the "General Information" procedure

Disconnect ECM connector
Ignition "ON" & Engine "OFF"
Measure voltage between terminal 2 of the APS1 harness connector and chassis ground
Specification : Approx. 0V
Is voltage within the specification?
YES
- Go to TERMINAL AND CONNECTOR INSPECTION
NO
- Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure