Many malfunctions in the electrical system are caused by poor harness and terminals.

Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

Thoroughly check all connectors (and connections) for looseness, bending, corrosion, contamination, deterioration, and/or damage.

Has a problem been found?

	▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.
	▶ Go to next procedure.

Ignition "OFF".

Disconnect Battery (-) terminal.

Disconnect BSD connector.

Measure resistnace between CAN high terminal of diagnostic connector and chassis ground.

Measure resistance between CAN low terminal of diagnostic connector and chassis ground.

Is the measured resisance normal?

	▶ Check ABS/ESP, BSD(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.
	▶ Check short to ground in communication line. And then, go to "Verification of Vehicle Repair" procedure.

Ignition "OFF".

Disconnect BSD ECU connector and ABS/ESP connector.

Measure the resistance between CAN-HIGH terminal of BSD ECU harness connector and CAN-HIGH terminal of ABS/ESP harness connector.

Measure the resistance between CAN-LOW terminal of BSD ECU harness connector and CAN-LOW terminal of ABS/ESP harness connector.

Is the measured resistance within specification?

	▶ Check ABS/ESP, BSD ECU(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.
	▶ Check for opent in harness. ▶ Repair as necessary and then go to "Verification of Vehicle Repair" procedure.