Toyota Yaris: Power Window Control System / Key-off Operation Function Operates even if Operating Conditions are not Satisfied
DESCRIPTION
When the front doors are closed, each power window regulator motor assembly can be operated for approximately 45 seconds after the ignition switch is turned from on to off by receiving operation permission signals from the main body ECU (multiplex network body ECU). However, when approximately 45 seconds have elapsed, or the driver door or front passenger door is opened within approximately 45 seconds of the ignition switch being turned off, the power window regulator motor assemblies stop operating.
During auto operation, when 45 seconds have elapsed and key-off operation is prohibited, the power window stops immediately.
CAUTION / NOTICE / HINT
NOTICE:
-
The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
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If a power window regulator motor assembly has been replaced with a new one, initialize the power window control system.
Click here
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If the main body ECU (multiplex network body ECU) is replaced, refer to the Registration.
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PROCEDURE
| 1. | CHECK MANUAL UP / DOWN FUNCTION |
(a) Check that the manual up and down functions using the multiplex network master switch assembly and power window regulator switch assembly can operate the power windows.
Click here
OK:
Manual up and down functions are normal.
| NG |
.gif) | GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) |
|
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| 2. | 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.
| NG |
| GO TO OTHER PROBLEM (Proceed to Problem Symptoms Table) |
|
| 3. | CHECK KEY-OFF OPERATION FUNCTION |
(a) Check the key-off operation function.
Click here
| Result | Proceed to |
|---|---|
| Power window can be operated even after opening driver door or front passenger door within approximately 45 seconds of ignition switch being turned off | A |
| Power window can be operated even after approximately 45 seconds have elapsed since ignition switch was turned off (for All Doors) | B |
| Power window can be operated even after approximately 45 seconds have elapsed since ignition switch was turned off (for Driver Door or Front Passenger Door) | C |
| B |
| REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| C |
| REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door or Front Passenger Door) |
|
| 4. | READ VALUE USING GTS (MAIN BODY) |
(a) Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| FR Door Courtesy Switch Status | Front door courtesy light switch assembly (for RH) signal | OFF or ON | OFF: Front door RH closed ON: Front door RH open | - |
| Tester Display |
|---|
| FR Door Courtesy Switch Status |
OK:
On the GTS screen, ON or OFF is displayed accordingly.
| OK |
| REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
| NG |
| GO TO LIGHTING SYSTEM (Proceed to Front Door Courtesy Switch Circuit) |
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...
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Other information:
Toyota Yaris XP210 (2020-2023) Reapir and Service Manual: Diagnosis System
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UTILITY Front Beam Axis Adjustment HINT: Front Beam Axis Adjustment is used to calibrate the beam axis of millimeter wave radar sensor assembly. (a) Perform Front Beam Axis Adjustment according to the display on the GTS. Body Electrical > Front Radar Sensor > Utility Tester Display Front Beam Axis Adjustment Front Beam Axis Misalignment Reading HINT: Front Beam Axis Misalignment Reading is used to check the amount of misalignment of the millimeter wave radar sensor assembly...
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Liftgate/Trunk Lid
WARNING
Never allow a person to ride in the luggage compartment/trunk
Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.
Do not drive with the liftgate/trunk lid open
