Last Modified: 08-21-2023 |
6.11:8.1.0 |
Doc ID: RM100000001XNN7 |
Model Year Start: 2022 |
Model: Avalon |
Prod Date Range: [08/2021 -
] |
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING; 2022 MY Avalon [08/2021 - ] |
HOW TO PROCEED WITH TROUBLESHOOTING
|
CAUTION / NOTICE / HINT
HINT:
*: Use the Techstream.
PROCEDURE
1.
|
VEHICLE BROUGHT TO WORKSHOP
|
NEXT
|
|
|
2.
|
CUSTOMER PROBLEM ANALYSIS
|
(a) Interview the customer and confirm the problem.
Click here
NEXT
|
|
|
3.
|
CHECK DTC AND FREEZE FRAME DATA*
|
(a) Check and record DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
Chassis > Brake/EPB > Trouble Codes
(b) Clear the DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
Chassis > Brake/EPB > Clear DTCs
(c) Reconfirm the DTCs.
(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.
for DTC Check / Clear: Click here
for Freeze Frame Data: Click here
Chassis > Brake/EPB > Trouble Codes
HINT:
-
When CAN communication system DTCs are output, repair the CAN communication system first.
Click here
-
If DTC U010087, U012587 and/or U012687 are among the CAN communication DTCs that are output, first use the Data List to check for a momentary open circuit.
Click here
-
If the Techstream cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.
Click here
-
If there is no response from the skid control ECU (brake actuator assembly), inspect the IG1 circuit and +BS circuit of the skid control ECU (brake actuator assembly).
Click here
Result
|
Proceed to
|
DTCs are not output. (Problem symptom occurs.)
|
A
|
DTCs are output.
|
B
|
DTCs are not output. (Problem symptom does not occur.)
|
C
|
A
|
|
|
4.
|
PROBLEM SYMPTOMS TABLE
|
(a) Check if the problem symptoms are listed in the problem symptoms table.
Click here
Result
|
Proceed to
|
The problem symptoms are not listed in the problem symptoms table.
|
A
|
The problem symptoms are listed in the problem symptoms table.
|
B
|
A
|
|
|
5.
|
PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*
|
(a) DATA LIST / ACTIVE TEST
Click here
(b) ON-VEHICLE INSPECTION
Click here
(c) TERMINALS OF ECU
Click here
NEXT
|
|
|
CAUTION:
Refer to the precautions before performing adjustment, repair or replacement.
Click here
NEXT
|
|
|
(a) Clear the DTCs.
Click here
Chassis > Brake/EPB > Clear DTCs
(b) Turn the engine switch off.
(c) Turn the engine switch on (IG).
(d) Check if the same DTCs are output.
Click here
Chassis > Brake/EPB > Trouble Codes
Result
|
Proceed to
|
DTCs are not output.
|
A
|
DTCs are output.
|
B
|
A
|
|
|
NEXT |
|
END
|
9.
|
REPAIR PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*
|
(a) Confirm the problem symptoms table and perform troubleshooting.
Click here
10.
|
REPAIR CIRCUIT INDICATED BY OUTPUT DTC*
|
(a) Confirm the diagnostic trouble code chart and perform troubleshooting.
Click here
|