B1622

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for Hatchback with VSC/Separate Type Yaw Rate Sensor): B1620/21, B1622/81: Side Airbag Sensor RH Circuit Malfunction
B1622/81 - Lost communication with Side Airbag Sensor RH

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 airbag sensor assembly, side airbag sensor assembly RH and rear airbag sensor RH. The side airbag sensor assembly RH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the airbag should be deployed. DTC B1620/21 or B1622/81 is stored when a malfunction is detected in the side collision sensor RH circuit.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SIDE AIRBAG SENSOR ASSEMBLY RH





(a) Turn the ignition switch off.

(b) 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.

(c) Interchange the side airbag sensor assembly RH with the side airbag sensor assembly LH and connect the connectors to them.

(d) Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.

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

(f) Clear the DTCs stored in the memory Airbag System (for Hatchback with VSC/Separate Type Yaw Rate Sensor).

(g) Turn the ignition switch off.

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

(i) Check for DTCs Airbag System (for Hatchback with VSC/Separate Type Yaw Rate Sensor).

Result





Text in Illustration





HINT
DTCs other than B1620/21, B1622/81, B1625/22 and B1627/82 may be output at this time, but they are not related to this check.

(j) Turn the ignition switch off.

(k) 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.

(l) Return the side airbag sensor assembly RH and the side airbag sensor assembly LH to their original positions and connect the connectors to them.

B -- REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Removal (from 07/2011)

C -- REPLACE SIDE AIRBAG SENSOR ASSEMBLY RH Removal (from 07/2011)

D -- REPLACE AIRBAG SENSOR ASSEMBLY Removal (from 07/2011)

A -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting