Open Check
- IG "OFF".
- Disconnect Stop Signal Electronic Module (SSEM) and HECU connector.
- Measure resistance between HAC/DBC signal terminal of Stop Signal Electronic Module (SSEM) harness connector and HAC/DBC relay "ON" signal terminal of HECU harness connector.
Specification: Approx. below 1Ω
- Is the measured value within specifications?
YES
- Go to "SHORT CHECK " procedure.
NO
- Repair open in stop lamp relay control circuit between the IBM Relay Box and HECU and then, Go to "VERIFICATION OF VEHICLE REPAIR " procedure.