|
Check the part number of the hydraulic unit (integrated with ASC-ECU).
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Q.
Is the check result normal?
|
|
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ).
Then go to Step 9.
|
|
|
|
Check the part number of ETACS-ECU.
|
|
Q.
Is the check result normal?
|
|
Replace ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ).
Then go to Step 9.
|
|
|
|
Use the M.U.T.-III to check whether the ASC system (Refer to )
and the ETACS-ECU store a diagnosis code (Refer to GROUP 54A - ETACS, Diagnosis Code
Chart ).
|
|
Q.
Is the check result normal?
|
|
Diagnose the system according to the relevant diagnosis code procedure, and then
go to Step 8.
|
|
|
|
Perform the actuator test below to function-check the emergency braking signal system
(Refer to ).
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|
- Item No. 10: ESS test mode
|
|
Q.
Is the check result normal?
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|
Using M.U.T.-III, check if any abnormality is present in the coding data below which is
stored in the ETACS-ECU (Refer to GROUP 00 - Coding Reference Table ).
|
|
Q.
Is the check result normal?
|
|
Replace ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ).
Then go to Step 9.
|
|
|
|
Q.
Is the check result normal?
|
|
Diagnose the power supply circuit to the ASC-ECU (Refer to ).
Then go to Step 9.
|
|
|
|
Perform the actuator test below to function-check the emergency braking signal system
(Refer to ).
|
|
- Item No.10: ESS test mode
|
|
Q.
Is the check result normal?
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|
Replace ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ).
Then go to Step 9.
|
|
|
|
Perform the actuator test below to function-check the emergency braking signal system
(Refer to ).
|
|
- Item No.10: ESS test mode
|
|
Q.
Is the check result normal?
|
|
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunction).
|
|
|
|
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ).
Then go to Step 9.
|
|
|
|
Perform the actuator test below to function-check the emergency braking signal system
(Refer to ).
|
|
- Item No.10: ESS test mode
|
|
Q.
Is the check result normal?
|
|
This diagnosis is complete.
|
|
|