Control Circuit Inspection

Check short in harness
1. IG "OFF".
2. Disconnect Main Relay and ECM connector.
3. Measure resistance between terminal 86 of Main Relay and chassis ground.
4. Measure resistance between terminals 86 and 85 of Main Relay.
  Specification: Infinite
5. Is the measured resistance within specification?
  YES
  - Go to step 2.
  NO
  - Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check open in harness
1. IG "OFF".
2. Disconnect Main Relay and ECM connector.
3. Measure resistance between harness terminal 85 of Main Relay and harness terminal 43 of ECM harness connector (C144-A).
  Specification: Approx. below 1Ω
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.