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 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

NEXT

3.

CHECK DTC AND FREEZE FRAME DATA*

(a) Check and record DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

for Freeze Frame Data: Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): FREEZE FRAME DATA

Chassis > Brake/EPB > Trouble Codes

(b) Clear the DTCs and Freeze Frame Data.

for DTC Check / Clear: Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

for Freeze Frame Data: Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): FREEZE FRAME DATA

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 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

for Freeze Frame Data: Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): FREEZE FRAME DATA

Chassis > Brake/EPB > Trouble Codes

HINT:

  • When CAN communication system DTCs are output, repair the CAN communication system first.

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

  • 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 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): CHECK FOR INTERMITTENT PROBLEMS

  • If the Techstream cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.

    Click here 2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

  • 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 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): TERMINALS OF ECU

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

B

GO TO STEP 10

C

USE SIMULATION METHOD TO CHECK

A

4.

PROBLEM SYMPTOMS TABLE

(a) Check if the problem symptoms are listed in the problem symptoms table.

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE

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

B

GO TO STEP 9

A

5.

PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*

(a) DATA LIST / ACTIVE TEST

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST

(b) ON-VEHICLE INSPECTION

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): ON-VEHICLE INSPECTION

(c) TERMINALS OF ECU

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): TERMINALS OF ECU

NEXT

6.

REPAIR OR REPLACEMENT

CAUTION:

Refer to the precautions before performing adjustment, repair or replacement.

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): PRECAUTION

NEXT

7.

RECONFIRM DTC*

(a) Clear the DTCs.

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

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 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B

B

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

A

8.

CONFIRMATION TEST*

NEXT

END

9.

REPAIR PERFORM TROUBLESHOOTING BASED ON PROBLEM SYMPTOM*

(a) Confirm the problem symptoms table and perform troubleshooting.

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE

NEXT

GO TO STEP 7

10.

REPAIR CIRCUIT INDICATED BY OUTPUT DTC*

(a) Confirm the diagnostic trouble code chart and perform troubleshooting.

Click here 2022 MY Avalon [08/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model): DIAGNOSTIC TROUBLE CODE CHART

NEXT

GO TO STEP 7