DESCRIPTION The airbag ECU assembly and occupant detection ECU communicate via CAN communication. When the occupant detection ECU stores DTC B1771, B1780, B1782, B1795, B1798, B1799, U0125 or U0129, the airbag ECU assembly receives this information and stores DTC B1650. When the occupant detection ECU stores DTC B1785 or B1787, the airbag ECU assembly receives this information and stores DTC B165A.
PROCEDURE
(a) Check for occupant classification system DTCs. Click here
OK: DTCs are not output.
(a) Turn the engine switch on (IG), and wait for at least 60 seconds. (b) Clear the DTCs stored in memory. Body Electrical > SRS Airbag > Clear DTCs
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Utility
UTILITY ALL READINESS HINT: With "All Readiness", you can check whether or not the DTC judgment has been completed by using the Techstream. You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs. (a) Connect the Techstream to the DLC3. (b) Tu ...
