Control Circuit Inspection
WARNING: This page is about a different variant/trim than selected.
■ Check short to battery in harness
- IG "OFF" & Disconnect EWGA connector and ECM connector.
- IG "ON" & ENG "OFF".
- Measure voltage between control terminal of EWGA heater harness connector and chassis ground.
Specification:
(+) terminal: Approx. 0V
(-) terminal: Approx. 0V
- Is the measured voltage within specification?
YES
- Go to "Check short to ground in harness" procedure below.
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
■ Check short to ground in harness
- IG "OFF" & Disconnect EWGA connector and ECM connector.
- Measure resistance between control terminal of EWGA heater harness connector and chassis ground.
Specification:
(+) terminal: Infinite
(-) terminal: Infinite
- Is the measured resistance within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.