Toyota Yaris: Power Window Control System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

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

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

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

NEXT

3.

READ AND SAVE OPERATION HISTORY*

NOTICE:

  • If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before operation history has been read out and saved, the operation history information could be lost.
  • The function "Vehicle Control History (RoB)" uses the current system time setting inside the GTS and the time counter inside the controlling ECU to calculate the timings shown in the operation history. For this reason, before reading out the operation history, first make sure that the GTS system clock is accurately set to the current time.

(a) Read and save operation history using the GTS.

Body Electrical > Main Body > Utility

Tester Display

Vehicle Control History (RoB)

NEXT

4.

PRE-CHECK

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary 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.

NEXT

5.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

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

Click here

NG

GO TO CAN COMMUNICATION SYSTEM

OK

6.

INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

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

Click here

Result

Proceed to

LIN DTCs are not output

A

LIN DTCs are output

B

B

GO TO LIN COMMUNICATION SYSTEM

A

7.

CHECK FOR DTC*

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

Body Electrical > Master Switch > Trouble Codes Body Electrical > D-Door Motor > Trouble Codes Body Electrical > P-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

(c) Recheck for DTCs.

Body Electrical > Master Switch > Trouble Codes Body Electrical > D-Door Motor > Trouble Codes Body Electrical > P-Door Motor > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

8.

PROBLEM SYMPTOMS TABLE

Click here

Result

Proceed to

Fault is not listed in problem symptoms table

A

Fault is listed in problem symptoms table

B

B

GO TO STEP 10

A

9.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Operation Check

Click here

(b) Terminals of ECU

Click here

(c) Data List / Active Test

Click here

(d) Fail-safe Chart

Click here

(e) Inspection

NEXT

10.

ADJUST, REPAIR OR REPLACE

(a) Check if any of the door window regulator sub-assemblies, power window regulator motor 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-assembly, power window regulator motor assembly, door belt moulding or door glass weatherstrip inner have been removed and installed, or if a power window regulator motor assembly have been removed and reinstalled.

A

The door window regulator sub-assembly, power window regulator motor assembly, door belt moulding or door glass weatherstrip inner have been removed and installed, or if a power window regulator motor assembly have not been removed and reinstalled.

B

B

GO TO STEP 12

A

11.

INITIALIZE POWER WINDOW CONTROL SYSTEM

(a) If any of the power window regulator motor assembly, door window regulator sub-assembly, front door belt moulding or front door glass weatherstrip inner have been removed and installed, or if a power window regulator motor assembly have been removed and reinstalled, perform "Initialize Power Window Control System" for the applicable door glass.

Click here

NEXT

12.

CONFIRMATION TEST

NEXT

END

    System Description

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