B1690

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1690/15,B1695/16: Door Side Airbag Sensor RH Malfunction

DESCRIPTION

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

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

DTC B1690/15 or B1695/16 is stored when a malfunction is detected in the side airbag sensor LH or RH circuit.





WIRING DIAGRAM









INSPECTION PROCEDURE

NOTICE:
When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.

PROCEDURE

1. CHECK FOR DTC

(a) Turn the ignition switch to ON.

(b) Clear the DTCs stored in memory DTC Check / Clear.

(c) Turn the ignition switch off.

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

(e) Check for DTCs DTC Check / Clear.

Result





B -- CHECK SIDE AIRBAG SENSOR LH

A -- USE SIMULATION METHOD TO CHECK Diagnosis System
C -- Continue to next step.

2. CHECK SIDE AIRBAG SENSOR RH

(a) Turn the ignition switch off.





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

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

(d) Connect the cable to the negative (-) battery terminal, 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 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





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

Text in Illustration





(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

3. CHECK SIDE AIRBAG SENSOR LH

(a) Turn the ignition switch off.





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

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

(d) Connect the cable to the negative (-) battery terminal, 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 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





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

Text in Illustration





(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 LH Removal

A -- USE SIMULATION METHOD TO CHECK Diagnosis System

C -- REPLACE CENTER AIRBAG SENSOR ASSEMBLY Removal