B1615

SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1615, B16F3; Front Airbag Sensor LH Malfunction; 2013 MY FR-S [03/2012 -]
B1615 - Front Airbag Sensor LH Malfunction
B16F3 - Front Airbag Sensor LH Mismatch

DESCRIPTION

The front airbag sensor LH circuit consists of the airbag ECU assembly and front airbag sensor LH.

The front airbag sensor LH detects impacts to the vehicle and sends signals to the airbag ECU assembly to determine if the airbag should be deployed.

These DTCs are stored when a malfunction is detected in the front airbag sensor LH.





WIRING DIAGRAM

Refer to DTCs B1617 and B1618 B1615.

INSPECTION PROCEDURE

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

PROCEDURE

1. CHECK FRONT AIRBAG SENSOR LH

(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 front airbag sensor LH with RH and connect the connectors.

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

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

(f) Turn the ignition switch off.

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

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

Result:





HINT
Codes other than DTCs B1610, B1615, B16F2 and B16F3 may be output at this time, but they are not related to this check.

(i) Turn the ignition switch off.

(j) 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.

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

B -- REPLACE AIRBAG ECU ASSEMBLY Removal

C -- REPLACE FRONT AIRBAG SENSOR LH Removal

A -- USE SIMULATION METHOD TO CHECK