No.1 ABS HU/CM DOES NOT RESPOND TO WDS OR EQUIVALENT

id0903c3827900

STEP

INSPECTION

ACTION

1
INSPECT ABS HU/CM CONNECTOR
Turn the ignition switch off.
Disconnect the ABS HU/CM connector.
Inspect the ABS HU/CM connector for damage.
Is the ABS HU/CM connector normal?
Yes
Go to the next step.
No
Replace the wiring harness. Perform the network test.
2
INSPECT CIRCUIT BETWEEN DLC-2 AND ABS HU/CM FOR OPEN CIRCUIT
Measure the resistance between ABS HU/CM terminal F (harness-side) and DLC-2 terminal D.
Is the resistance less than 5 ohms?
Yes
Go to the next step.
No
Replace the wiring harness. Perform the network test.
3
INSPECT ABS HU/CM OPERATION
Disconnect all the ABS connectors.
Inspection:
• Corrosion
• Terminal separation
Connect all the ABS HU/CM connectors and verify that their positions are correct.
Operate the system and inspect for any malfunction.
Is there any malfunction?
Yes
Replace the ABS HU/CM.
Perform the network test.
No
The system operates normally. The malfunction may result from loose connectors or corrosion. Clear the DTC. Repeat the self-test.