Problem Symptoms Table [12/2019 - ]

2025 Toyota Highlander Hybrid XLESECTION Problem Symptoms Table [12/2019 - ]

HINT: 

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
POWER WINDOW CONTROL SYSTEM

Symptom Suspected Area Link
Remote up / down function does not operate LIN communication system Refer to Remote Up / Down Function does not Operate [12/2019 - 11/2023] , or refer to Remote Up / Down Function does not Operate [11/2023 - ]
Multiplex network master switch assembly
Power window regulator motor assembly (for front passenger door)
Power window regulator motor assembly (for rear LH door)
Power window regulator motor assembly (for rear RH door)
Driver side power window does not operate with power window master switch LIN communication system Refer to Driver Side Power Window does not Operate with Power Window Master Switch [12/2019 - 11/2023] , or refer to Driver Side Power Window does not Operate with Power Window Master Switch [11/2023 - ]
Power window regulator motor assembly (for driver door)
Multiplex network master switch assembly
Main body ECU (Multiplex network body ECU)
Wire harness or connector
Front passenger side power window does not operate with front passenger side power window switch LIN communication system Refer to Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch [12/2019 - 11/2023] , or refer to Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch [11/2023 - ]
Power window regulator motor assembly (for front passenger door)
Power window regulator switch assembly
Main body ECU (Multiplex network body ECU)
Wire harness or connector
Rear power window LH does not operate with rear power window switch LH LIN communication system Refer to Rear Power Window LH does not Operate with Rear Power Window Switch LH [12/2019 - 11/2023] , or refer to Rear Power Window LH does not Operate with Rear Power Window Switch LH [11/2023 - ]
Power window regulator motor assembly (for rear LH door)
Rear power window regulator switch assembly (for LH door)
Main body ECU (Multiplex network body ECU)
Wire harness or connector
Rear power window RH does not operate with rear power window switch RH LIN communication system Refer to Rear Power Window RH does not Operate with Rear Power Window Switch RH [12/2019 - 11/2023] , or refer to Rear Power Window RH does not Operate with Rear Power Window Switch RH [11/2023 - ]
Power window regulator motor assembly (for rear RH door)
Rear power window regulator switch assembly (for RH door)
Main body ECU (Multiplex network body ECU)
Wire harness or connector
Driver side power window auto up / down function does not operate with power window master switch LIN communication system Refer to Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Master Switch [12/2019 - ]
Power window regulator motor assembly (for driver door)
Multiplex network master switch assembly
Power window position initialization
Wire harness or connector
Front passenger side power window auto up / down function does not operate with front passenger side power window switch Power window regulator motor assembly (for front passenger door) Refer to Front Passenger Side Power Window Auto Up / Down Function does not Operate with Front Passenger Side Power Window Switch [12/2019 - ]
Power window regulator switch assembly
Power window position initialization
Wire harness or connector
Rear power window LH auto up / down function does not operate with rear power window switch LH Power window regulator motor assembly (for rear LH door) Refer to Rear Power Window LH Auto Up / Down Function does not Operate with Rear Power Window Switch LH [12/2019 - ]
Rear power window regulator switch assembly (for LH door)
Power window position initialization
Wire harness or connector
Rear power window RH auto up / down function does not operate with rear power window switch RH Power window regulator motor assembly (for rear RH door) Refer to Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power Window Switch RH [12/2019 - ]
Rear power window regulator switch assembly (for RH door)
Power window position initialization
Wire harness or connector
All power windows do not operate with driver side door key cylinder or wireless transmitter LIN communication system Refer to All Power Windows do not Operate with Driver Side Door Key Cylinder or Wireless Transmitter [12/2019 - ]
Wireless door lock control system
Power door lock control system
Main body ECU (Multiplex network body ECU)
Key-off operation function operates even if operating conditions are not satisfied LIN communication system Refer to Key-off Operation Function Operates even if Operating Conditions are not Satisfied [12/2019 - 11/2023] , or refer to Key-off Operation Function Operates even if Operating Conditions are not Satisfied [11/2023 - ]
Lighting system
Power window regulator motor assembly (for driver door)
Power window regulator motor assembly (for front passenger door)
Power window regulator motor assembly (for rear LH door)
Power window regulator motor assembly (for rear RH door)
Main body ECU (Multiplex network body ECU)
Auto up operation does not fully close power window (jam protection function is activated) Power window position initialization (applicable location) Refer to Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated) [12/2019 - ]
Improper installation (applicable location)
Power window regulator motor assembly (for driver door)
Power window regulator motor assembly (for front passenger door)
Power window regulator motor assembly (for rear LH door)
Power window regulator motor assembly (for rear RH door)
Auto down operation does not fully open power window (catch protection function is activated) Power window position initialization (applicable location) Refer to Auto Down Operation does not Fully Open Power Window (Catch Protection Function is Activated) [12/2019 - ]
Improper installation (applicable location)
Power window regulator motor assembly (for driver door)
Power window regulator motor assembly (for front passenger door)
Power window regulator motor assembly (for rear LH door)
Power window regulator motor assembly (for rear RH door)
Jam protection function does not operate Power window position initialization (applicable location) Refer to Jam Protection Function does not Operate [12/2019 - ]
Power window regulator motor assembly (for driver door)
Power window regulator motor assembly (for front passenger door)
Power window regulator motor assembly (for rear LH door)
Power window regulator motor assembly (for rear RH door)
Power windows do not operate using all window switch Main body ECU (Multiplex network body ECU) Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023] , or refer to REMOVAL [11/2023 - ]
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.