DTC B1646/29: Rear Sensor LH Circuit: Procedure

Fig 1: Identifying Rear Airbag Sensor RH & Side Airbag Sensor Assembly LH Circuit

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Turn the power switch off.
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 rear airbag sensor LH with rear airbag sensor RH and connect the connectors to them.
4. Connect the negative (-) terminal cable to the auxiliary battery.
5. Turn the power switch on (IG), and wait for at least 60 seconds.
6. Clear the DTCs stored in the memory. Refer to DTC CHECK / CLEAR .
7. Turn the power switch off.
8. Turn the power switch on (IG), and wait for at least 60 seconds.
9. Check for DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC B1641/19 and B1646/29 are not output.	A
   DTC B1646/29 is output.	B
   DTC B1641/19 is output.	C

   TEXT IN ILLUSTRATION
   
   

   *1	Rear Airbag Sensor RH
   *2	Side Airbag Sensor Assembly LH

   HINT: 

   DTCs other than B1641/19 and B1646/29 may be output at this time, but they are not related to this check.

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 rear airbag sensor LH and rear airbag sensor RH to their original positions and connect the connectors to them.

B → See step   4 

C → See step   3 

A → See step   2