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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSAIR BAG, SRSOCCUPANT CLASSIFICATION SYSTEM - DIAGNOSTIC CODES & SYMPTOM TESTSOCCUPANT CLASSIFICATION SYSTEMDTC B1785: FRONT OCCUPANT CLASSIFICATION SENSOR LH COLLISION DETECTION [12/2019 - 11/2023]CAUTION / NOTICE / HINT
2025 Toyota Highlander XLE, FWD

Caution / Notice / Hint

2025 Toyota Highlander XLE, FWDSECTION Caution / Notice / Hint
NOTE:
  • When this DTC is stored, repair of the malfunction indicated can only be performed by initializing the occupant detection ECU or replacing the separate type front seat cushion spring assembly RH. Do not replace the occupant detection ECU to repair the malfunction indicated by this DTC.

    If the occupant detection ECU is replaced, this DTC will not be output but the occupant detection system may not function properly.

  • After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Refer to INITIALIZATION [12/2019 - 09/2020] , or refer to INITIALIZATION [09/2020 - 10/2021] , or refer to INITIALIZATION [10/2021 - 10/2022] , or refer to INITIALIZATION [10/2022 - 11/2023]

HINT: 

When DTC B165A is stored as a result of troubleshooting for the airbag system, check the DTCs stored in the occupant detection ECU. When DTC B1785 is output, perform troubleshooting for this DTC first.

RENDER: 1.0x

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