AIRBAG SYSTEM, Diagnostic DTC:B1620/21

DESCRIPTION

The side collision sensor RH circuit (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH) is composed of the center airbag sensor assembly, side airbag sensor RH and rear airbag sensor RH.

The side airbag sensor RH detects impacts to the vehicle and sends signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1620/21 is stored when a malfunction is detected in the side airbag sensor RH.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CHECK SIDE AIRBAG SENSOR RH

   
   
   1. 

      Text in Illustration

      *1	Side Airbag Sensor LH
      *2	Center Airbag Sensor Assembly

      Turn the power switch off.

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

      CAUTION:

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

   3. Interchange the side airbag sensor LH with the side airbag sensor RH and connect the connectors to them.

   4. Connect the cable to the negative (-) battery terminal.

   5. Turn the power switch on (IG), and wait for at least 60 seconds.

   6. Clear the DTCs stored in memory Click here.

   7. Turn the power switch off.

   8. Turn the power switch on (IG), and wait for at least 60 seconds.

   9. Check for DTCs Click here.

      Result
      Result Proceed to DTCs B1620/21 and B1625/22 are not output. A DTC B1625/22 is output. B DTC B1620/21 is output. C

      Tech Tips

      Codes other than DTCs B1620/21 and B1625/22 may be output at this time, but they are not related to this check.

   
   

   B

   REPLACE SIDE AIRBAG SENSOR RH Click here

   C

   REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

   A

   USE SIMULATION METHOD TO CHECK Click here