Signal Circuit Inspection

■ Check open in harness 

1. IG "OFF" and disconnect ECM (PCM) and IDB connector.
2. Check resistance between CAN-HIGH terminal of ECM (PCM) harness Connector and CAN-HIGH terminal of IDB harness connector.
3. Check resistance between CAN-LOW terminal of ECM (PCM) harness Connector and CAN-LOW terminal of IDB harness connector.

   Specification:  Below 1.0Ω

4. Is the measured resistance within specification?

   YES 

   • Go to "COMPONENT INSPECTION ".

   NO 

   • Repair open in CAN BUS line and go to "VERIFICATION OF VEHICLE REPAIR ".