Inspection Procedure 7: ABS system inoperative




COMMENTS ON TROUBLE SYMPTOM


In case of this trouble symptom, ABS system operation may be disabled. Diagnosis code may be set by the ABS system using scan tool.

PROBABLE CAUSES



  • Low battery voltage
  • Wiring harness or connector failure of CAN bus line
  • ABS-ECU malfunction

DIAGNOSIS PROCEDURE


STEP 1. Hydraulic unit check


Refer to .

Q. Is the check result normal?

Go to Step 2.
Repair the brake pipe or replace ABS-ECU.

STEP 2. Operation check


Q. Does TCL/ASC operate normally?

The procedure is complete.
Check the brake system related components except the ABS system.