Ground Circuit Inspection
- Check Open in ground circuit
- IG KEY "OFF".
- Disconnect IATS connector.
- IG KEY "ON" & ENG "OFF".
- Measure the voltage between signal terminal of IATS harness connector and chassis ground. (A)
- Measure the voltage between signal and ground terminal of IATS harness connector and chassis ground. (B)
Specification: "A" - "B" = Below 200mV
- Is the measured voltage within specification?
YES
Go to "COMPONENT INSPECTION " procedure.
NO
Check for Open in ground circuit. Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.