Signal Circuit Inspection
- Voltage inspection
- IG Key "OFF".
- Disconnect the A/C pressure sensor connector.
- IG Key "ON".
- Measure the voltage between terminal 2 of A/C pressure sensor harness connector and chassis ground.
Specification; Approx. 0V
- Is the measured voltage within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Go to step 2.
- Check short to battery in harness
- IG Key "OFF".
- Disconnect A/C pressure sensor connector and ECM connector.
- Measure the resistance between terminal 2 and terminal 3 of A/C pressure sensor harness connector.
Specification: Infinite
- Is the measured resistance within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair Short in signal circuit and go to "VERIFICATION OF VEHICLE REPAIR " procedure.