SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): B1650,B165A; Occupant Classification System Malfunction; 2020 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001HSJ6
Model Year Start: 2020	Model: GR Corolla	Prod Date Range: [03/2019 - 11/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): B1650,B165A; Occupant Classification System Malfunction; 2020 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 11/2022]

DTC

B1650

Occupant Classification System Malfunction

DTC

B165A

Occupant Detection Sensor Zero Point Calibration Incomplete

DESCRIPTION

The airbag sensor 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 sensor assembly receives this information and stores DTC B1650.

When the occupant detection ECU stores DTC B1785 or B1787, the airbag sensor assembly receives this information and stores DTC B165A.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	Warning Indicate	Test Mode / Check Mode
B1650	Occupant Classification System Malfunction	The occupant detection ECU has stored DTC B1771, B1780, B1782, B1795, B1798, B1799, U0125 or U0129.	Occupant classification system	Comes on	Does not apply to test/check mode
B165A	Occupant Detection Sensor Zero Point Calibration Incomplete	The occupant detection ECU has stored DTC B1785 or B1787.	Occupant classification system	Comes on	Does not apply to test/check mode

PROCEDURE

1.	CHECK DTC (OCCUPANT CLASSIFICATION SYSTEM)

(a) Check for occupant classification system DTCs.

Click here

OK:

DTCs are not output.

GO TO OCCUPANT CLASSIFICATION SYSTEM

2.	CLEAR DTC (AIRBAG SYSTEM)

(a) Turn the ignition switch to ON, and wait for at least 60 seconds.

(b) Clear the DTCs stored in memory.

Body Electrical > SRS Airbag > Clear DTCs

END