DTC B163A: Side Airbag Sensor Assembly No. 2 (LH) [04/2018 -]: Procedure

1. Turn the power switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Side No. 1 Airbag Sensor RH
   *2	Airbag ECU Assembly

2. Disconnect the cable from the negative (-) auxiliary battery terminal.
   WARNING:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

3. Interchange the side No. 1 airbag sensor LH with RH and connect the connectors.
4. Connect the cable to the negative (-) auxiliary battery terminal.
5. Turn the power switch on (IG), and wait for at least 60 seconds.
6. Clear the DTCs stored in memory.

   Body Electrical > SRS Airbag > Clear DTCs 

7. Turn the power switch off.
8. Turn the power switch on (IG), and wait for at least 60 seconds.
9. Check for DTCs.

   Body Electrical > SRS Airbag > Trouble Codes 

   HINT: 

   Codes other than DTCs B162A and B163A may be output at this time, but they are not related to this check.

   Result

   Result	Proceed to
   DTC B163A is output.	A
   DTC B162A is output.	B
   DTCs B162A and B163A are not output.	C

10. Turn the power switch off.
11. Disconnect the cable from the negative (-) auxiliary battery terminal.
    WARNING:

    Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

12. Return the side No. 1 airbag sensor LH and RH to their original positions and connect the connectors.

Result: 

A 

REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [04/2018 - 08/2020]  , or refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

Result: 

B 

REPLACE SIDE NO. 1 AIRBAG SENSOR LH. Refer to  REMOVAL [04/2018 - 08/2020]  , or refer to  REMOVAL [08/2020 - 08/2021]  , or refer to  REMOVAL [08/2021 -] 

Result: 

C 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [04/2018 -]