B1690

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1690/15: Door Side Airbag Sensor RH Malfunction
B1690/15 - Door Side Airbag Sensor RH Malfunction

DESCRIPTION

The side collision sensor RH circuit (to determine deployment of the front seat airbag assembly RH, curtain shield airbag assembly RH and front seat outer belt assembly RH) is composed of the airbag ECU assembly, side airbag sensor assembly RH, side No. 2 airbag sensor assembly RH and door side airbag sensor RH.

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

DTC B1690/15 is stored when a malfunction is detected in the door side airbag sensor RH.





WIRING DIAGRAM

Refer to DTCs B1622/81, B1623/81, B1632/81, B1633/81, B1642/81, B1692/81 and B1693/81 B1622.

INSPECTION PROCEDURE

NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work Service Precautions.

PROCEDURE

1. CHECK DOOR SIDE AIRBAG SENSOR RH

(a) Turn the power switch off.





(b) Disconnect the cable from the negative (-) auxiliary battery terminal.

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

(c) Interchange the door side airbag sensor RH with LH and connect the connectors.

(d) Connect the cable to the negative (-) auxiliary battery terminal.

(e) Clear the DTCs stored in memory Reading and Clearing Diagnostic Trouble Codes.

(f) Turn the power switch off.

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

(h) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result:





HINT
Codes other than DTCs B1690/15 and B1695/16 may be output at this time, but they are not related to this check.

(i) Turn the power switch off.

(j) Disconnect the cable from the negative (-) auxiliary battery terminal.

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

(k) Return the door side airbag sensor RH and LH to their original positions and connect the connectors.

Text in Illustration





B -- REPLACE DOOR SIDE AIRBAG SENSOR RH Removal

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

A -- REPLACE AIRBAG ECU ASSEMBLY Removal