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Home >> Toyota >> 2022 >> Avalon XLE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 64 (Occupant Classification System - Diagnostic Codes & Symptom Tests (Hybrid)) >> OCCUPANT CLASSIFICATION SYSTEM (for HV Model) >> DTC B1785: Front Occupant Classification Sensor LH Collision Detection [04/2018 - ] >> Caution / Notice / Hint

Caution / Notice / Hint

WARNING: This page is about a different variant/trim than selected.
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 power 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 PRECAUTION [04/2018 - ]

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.

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