Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001AS1A
Model Year Start: 2019 Model: Avalon Prod Date Range: [04/2018 -           ]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING; 2019 - 2022 MY Avalon [04/2018 -        ]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the power window control system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
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2.

CUSTOMER PROBLEM ANALYSIS

HINT:

  • In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
  • Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
  • The following 5 items are important points for problem analysis:

    What

    Vehicle model, system name

    When

    Date, time, occurrence frequency

    Where

    Road conditions

    Under what conditions?

    Driving conditions, weather conditions

    How did it happen?

    Problem symptoms
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3.

PRE-CHECK

(a) Measure the battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

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4.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for CAN communication system DTCs.

Click here 2019 - 2020 MY Avalon [04/2018 - 08/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2021 MY Avalon [08/2020 - 08/2021]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2022 MY Avalon [08/2021 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM

Result

Proceed to

CAN DTCs are not output

A

CAN DTCs are output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

5.

INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Using the Techstream, check for LIN communication system DTCs.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; NETWORKING: LIN COMMUNICATION SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Result

Proceed to

LIN DTCs are not output

A

LIN DTCs are output

B
B

GO TO LIN COMMUNICATION SYSTEM

A

6.

CHECK FOR DTC*

(a) Check for DTCs and make a note of any codes that are output.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): DTC CHECK / CLEAR

Body Electrical > Master Switch > Trouble Codes

Body Electrical > D-Door Motor > Trouble Codes

Body Electrical > P-Door Motor > Trouble Codes

Body Electrical > RL-Door Motor > Trouble Codes

Body Electrical > RR-Door Motor > Trouble Codes

(b) Clear the DTCs.

Body Electrical > Master Switch > Clear DTCs

Body Electrical > D-Door Motor > Clear DTCs

Body Electrical > P-Door Motor > Clear DTCs

Body Electrical > RL-Door Motor > Clear DTCs

Body Electrical > RR-Door Motor > Clear DTCs

(c) Recheck for DTCs.

Body Electrical > Master Switch > Trouble Codes

Body Electrical > D-Door Motor > Trouble Codes

Body Electrical > P-Door Motor > Trouble Codes

Body Electrical > RL-Door Motor > Trouble Codes

Body Electrical > RR-Door Motor > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

7.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B
B

GO TO STEP 9

A

8.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): OPERATION CHECK

(b) Terminals of ECU

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): TERMINALS OF ECU

(c) Data List / Active Test

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): DATA LIST / ACTIVE TEST

(d) Fail-safe Chart

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): FAIL-SAFE CHART

(e) Inspection

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9.

ADJUST, REPAIR OR REPLACE

(a) Check if any of the door window regulator sub-assemblies, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.

Result

Proceed to

Any of the door window regulator sub-assemblies, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled.

A

The door window regulator sub-assemblies, power window regulator motor assemblies, door glass and door glass runs have not been removed and reinstalled.

B
B

GO TO STEP 11

A

10.

INITIALIZE POWER WINDOW CONTROL SYSTEM

(a) If any of the door window regulator sub-assemblies, power window regulator motor assemblies, door glass or door glass runs have been removed and reinstalled, initialize the power window control system.

Click here 2019 - 2022 MY Avalon [04/2018 -        ]; WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM (for Gasoline Model): INITIALIZATION

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11.

CONFIRMATION TEST
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END