Center Airbag Sensor Communication Stop Mode [11/2018 - 08/2020]: Procedure

CHECK FOR OPEN IN CAN BUS WIRE (AIRBAG ECU ASSEMBLY MAIN WIRE)

Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.

Disconnect the airbag ECU assembly connector.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Front view of wire harness connector (to Airbag ECU Assembly)

w/o Occupant Classification System: Refer to PRECAUTION [11/2018 - 08/2020]

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
G70-26 (CANH) - G70-27 (CANL)	Cable disconnected from negative (-) battery terminal	108 to 132 Ω

Result

Proceed to
OK
NG

Result:

REPLACE CAN MAIN WIRE AND CONNECTOR

Result:

See step 2

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
G70-32 (E2) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω
G70-33 (E1) - Body ground	Cable disconnected from negative (-) battery terminal	Below 1 Ω

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

*a	Front view of wire harness connector (to Airbag ECU Assembly)

Reconnect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
NOTE:
When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Refer to INITIALIZATION [11/2018 - 02/2019] , or refer to INITIALIZATION [02/2019 - 10/2019] , or refer to INITIALIZATION [10/2019 - 06/2020] , or refer to INITIALIZATION [06/2020 - 08/2020]

Measure the voltage according to the value(s) in the table below.

Standard Voltage

Tester Connection	Switch Condition	Specified Condition
G70-36 (IG2) - Body ground	Ignition switch ON	11 to 14 V
G70-36 (IG2) - Body ground	Ignition switch off	Below 1 V

Result

Proceed to
OK
NG

Result:

REPLACE AIRBAG ECU ASSEMBLY

Result:

REPLACE HARNESS AND CONNECTOR