Signal circuit inspection
■ Open or Short Check
- Ignition "OFF".
- Disconnect HECU and EPS connector.
- Measure resistance between CAN HIGH (LOW) terminal of the HECU harness connector and CAN HIGH (LOW) terminal of the EPS harness connector.
Specification: Approx. below 1Ω
- Is the measured value within specification?
YES
- Go to "COMPONENT INSPECTION " procedure.
NO
- Repair open in CAN BUS line between HECU harness connector and EPS ECU harness connector and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.