Toyota Yaris: Power Window Control System / All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Vehicle Exterior / Window / Glass / Power Window Control System / All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter

DESCRIPTION

Wireless Transmitter-linked Function
  • When a key switch is pushed: 1) the door control receiver receives the wireless door lock signal; 2) the door control receiver sends a signal to the main body ECU (multiplex network body ECU) through the certification ECU (smart key ECU assembly); 3) the main body ECU (multiplex network body ECU) sends the operation permission signal to the power window regulator motor assemblies; and 4) the power window regulator motor assemblies are activated.
Key-linked Function
  • When the driver door key cylinder (key linked switch) is turned and held: 1) the door lock motor receives the signal; 2) the main body ECU (multiplex network body ECU) sends the signal to the power window regulator motor assemblies; and 3) the power window regulator motor assemblies are activated.

CAUTION / NOTICE / HINT

NOTICE:

  • These functions are set through customize settings, as they are off by default.
  • The power window control system uses the LIN communication system and CAN communication system. Inspect the communication functions by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication systems are functioning properly.

    Click here

  • If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration.

    Click here

PROCEDURE

1.

CHECK BASIC FUNCTION (WIRELESS AND POWER DOOR LOCK CONTROL SYSTEM)

(a) Check that the wireless door lock / unlock function operates normally.

Click here

(b) Check that the key-linked lock/unlock function operates normally.

Click here

Result

Proceed to

Wireless door lock/unlock function and key-linked lock/unlock function operate normally

A

Wireless door lock/unlock function does not operate normally

B

Key-linked lock/unlock function does not operate normally

C

B

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table)

C

GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Problem Symptoms Table)

A

2.

CHECK MANUAL UP / DOWN FUNCTION

(a) Check that the manual up and down functions using the multiplex network master switch assembly or power window regulator switch assembly can operate all of the power windows.

Click here

OK:

Manual up and down functions are normal.

NG

GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table)

OK

3.

CHECK REMOTE UP / DOWN FUNCTION

(a) Check that the remote up and down functions using the multiplex network master switch assembly can operate all of the power windows.

Click here

OK:

Remote up and down functions are normal.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table)

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    Other information:

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