|
Use the M.U.T.-III to diagnose the CAN bus lines.
|
|
Q.
Is the check result normal?
|
|
Repair the CAN bus line. (Refer to GROUP 54C - Troubleshooting ).
Then go to Step 6.
|
|
|
|
Check that the brake tube is installed to the hydraulic unit (integrated with ASC-ECU)
correctly. (Refer to ).
|
|
Q.
Is the check result normal?
|
|
Connect the brake tubes correctly, and repair or replace the external brake lines
of the hydraulic unit (integrated with ASC-ECU). Then go to Step 6.
|
|
|
|
Perform the following checks.
|
|
- Brake pedal check. (Refer to GROUP 35A - On-vehicle Service, Brake
Pedal Check).
- Brake booster check. (Refer to GROUP 35A - On-vehicle Service, Brake Booster
Operation Check).
- Check valve check. (Refer to GROUP 35A - On-vehicle Service, Check Valve
Operation Check).
|
|
Q.
Can any fault be found with the brake operation?
|
|
Check the brake-related parts, and repair if necessary. Then go to Step 6.
|
|
|
|
Perform the following actuator tests. (Refer to ).
|
|
- Item No.01: FL wheel ABS
- Item No.02: FR wheel ABS
- Item No.03: RL wheel ABS
- Item No.04: RR wheel ABS
- Item No.05: FL wheel TCL
- Item No.06: FR wheel TCL
- Item No.07: RL wheel TCL
- Item No.08: RR wheel TCL
|
|
Q.
Is the check result normal?
|
|
Replace the hydraulic unit assembly (integrated with ASC-ECU) (Refer to ). Then
go to Step 6.
|
|
|
|
Q.
Does the brake operate normally?
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|
Replace the hydraulic unit assembly (integrated with ASC-ECU) (Refer to ). Then
go to Step 6.
|
|
|
|
Q.
Does the brake operate normally?
|
|
This diagnosis is complete.
|
|
|