Signal Circuit Inspection
- IG "OFF" & Disconnect IATS connector.
- IG "ON".
- Measure voltage between Pin No. 3 (Signal) terminal of IATS harness connector and chassis ground.
Specification: Approx. 5V
- IG "OFF" & Disconnect PCM connector.
- Measure resistance between Pin No. 3 (Signal) terminal of IATS harness connector and chassis ground.
Specification: ∞ (Infinity)Ω
- Is the measured Value within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.