|
In case of this trouble symptom, ABS system operation may be disabled. Diagnosis code
may be set by the ABS system using M.U.T.-III.
|
|
- Low battery voltage
- Wiring harness or connector failure of CAN bus line
- The ABS-ECU is defective.
- Different ETACS-ECU, abnormal variant coding information
|
|
Use M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
On completion, go to Step 2.
|
|
|
|
Use M.U.T.-III to check the diagnosis code for the ABS system. (Refer to .)
|
|
Q.
Is the check result normal?
|
|
Carry out the diagnosis for the diagnosis code chart (Refer to ).
Then go to Step 7.
|
|
|
|
Q.
Is the check result normal?
|
|
Carry out the diagnosis of ABS-ECU power supply circuit system (Refer to ).
Then go to Step 7.
|
|
|
|
Check that the brake tube is correctly mounted to the hydraulic unit (integrated with
ABS-ECU) (Refer to ).
|
|
Q.
Is the check result normal?
|
|
Connect the brake tube correctly. Then go to Step 7.
|
|
|
|
Q.
Does the ABS work normally?
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How
to Cope with Intermittent Malfunctions ).
|
|
|
|
Check the brake system related components except ABS. Then go to Step 6.
|
|
|
|
Q.
Does the ABS work normally?
|
|
This diagnosis is complete.
|
|
|
|
Replace the hydraulic unit (integrated with ABS-ECU) (Refer to ).
Then go to Step 7.
|
|
|
|
Q.
Does the ABS warning lamp turn ON and OFF normally?
|
|
This diagnosis is complete.
|
|
|