CAN Communication Line Inspection
- Check Short to Ground in Can Communication Line
- IG KEY OFF.
- Measure resistance between CAN high terminal (# 3) of diagnostic connector and chassis ground.
- Measure resistance between CAN low terminal (# 11) of diagnostic connector and chassis ground.
Specification : ∞ Ω
- Is the measured value within specification?
YES
- Check Cluster, BSD ECU connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Check short to battery in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Check short to ground in communication line. And then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- CAN communication circuit inspection (BSD ECU (LH) ↔ ABS/ESC)
- Ignition "OFF"
- Disconnect BSD ECU (LH/RH) connector and Cluster connector.
- Measure the resistance between CAN-HIGH terminal of BSD ECU (LH/RH) harness connector and CAN-HIGH terminal of ABS/ESC harness connector.
- Measure the resistance between CAN-LOW terminal of BSD ECU (LH/RH) harness connector and CAN-LOW terminal of ABS/ESC harness connector.
Specification : Below 1Ω
- Is the measured resistance within specification?
YES
- Check Cluster, BSD ECU (LH/RH) connectors for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Check for Open/Short in harness.
- Repair as necessary and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.