B1690

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1690/15,B1692/81: Door Side Airbag Sensor RH Malfunction
B1692/81 - Lost Communication with Door Side Airbag Sensor RH

DESCRIPTION

for DTC B1690/15:

The side airbag sensor RH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.

If the center airbag sensor assembly receives signals from the lateral deceleration sensor, it determines whether the SRS should be activated.

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

for DTC B1692/81:

The circuit for the side collision sensor RH (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 and rear airbag sensor RH detect impacts to the vehicle and send signals to the center airbag sensor assembly to determine if the airbag should be deployed.

DTC B1692/81 is recorded when a malfunction is detected in the circuit for the side collision sensor RH (to determine deployment of the front seat side airbag assembly RH and curtain shield airbag assembly RH).





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK SIDE AIRBAG SENSOR RH





(a) Turn the ignition switch off.

(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.

(c) Interchange the side airbag sensor LH with RH 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 DTC Check / Clear.

(g) Turn the ignition switch off.

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

(i) Check for DTCs DTC Check / Clear.

Result





Text in Illustration





HINT
DTCs other than B1690/15, B1692/81, B1695/16 and B1697/82 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, and wait for at least 90 seconds.

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

B -- REPLACE SIDE AIRBAG SENSOR RH Removal

A -- USE SIMULATION METHOD TO CHECK Diagnosis System

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal