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

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.

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.

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

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Front Passenger Side Power Window Auto Up / Down Function does not Operate with Front Passenger Side Power Window Switch

DESCRIPTION If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode...

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)...

Other information:

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: MIL Circuit

DESCRIPTION The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM. The MIL operation can be checked visually. When the ignition switch is first turned to ON, the MIL should be illuminated and should then turn off after the engine is started...

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Brake Switch "A" Circuit Short to Ground (P057111)

DESCRIPTION The skid control ECU (brake actuator assembly) inputs the stop light signal and brake operation condition. When the brake pedal is depressed and the stop light switch signal is not input, this DTC is output. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P057111 Brake Switch "A" Circuit Short to Ground Either of the following is detected: When the +BS terminal voltage is 9...