SUPPLEMENTAL RESTRAINT SYSTEMS  AIRBAG SYSTEM  B1615/14  Front Airbag Sensor LH Malfunction  


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 and pretensioner should be deployed.

DTC B1615/14 is stored when a malfunction is detected in the front airbag sensor LH.

DTC No. Detection Item DTC Detection Condition Trouble Area Test Mode / Check Mode
B1615/14 Front Airbag Sensor LH Malfunction
·

Front airbag sensor LH malfunction

·

Airbag ECU assembly malfunction


·

Front airbag sensor LH

·

Airbag ECU assembly


Does not apply to test/check mode

CAUTION / NOTICE / HINT

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.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>PRECAUTION


PROCEDURE

1.CHECK FRONT AIRBAG SENSOR LH
a.
C291749C01
0.5,0.917 0.813,1.115 0.313,0.198 10 false *1 0.5,3.26 0.813,3.458 0.313,0.198 10 false *1 2.604,1.135 2.917,1.573 0.313,0.438 10 false *2 2.615,3.542 2.938,3.844 0.323,0.302 10 false *2 0.177,0.167 0.49,0.365 0.313,0.198 10 false *A 0.177,2.542 0.49,2.74 0.313,0.198 10 false *B 2.177,0.917 2.333,1.115 0.156,0.198 10 false A 2.021,3.271 2.177,3.479 0.156,0.208 10 false B 1.573,0.927 1.729,1.125 0.156,0.198 10 false C 1.417,0.927 1.573,1.125 0.156,0.198 10 false D 0.969,0.927 1.125,1.125 0.156,0.198 10 false E 2.177,3.271 2.333,3.469 0.156,0.198 10 false A 2.021,0.917 2.177,1.125 0.156,0.208 10 false B 1.573,3.271 1.729,3.469 0.156,0.198 10 false C 1.417,3.271 1.573,3.469 0.156,0.198 10 false D 0.969,3.271 1.125,3.469 0.156,0.198 10 false E 0.813,3.271 0.969,3.469 0.156,0.198 10 false F 0.813,0.927 0.969,1.125 0.156,0.198 10 false F
*A for Automatic Transaxle, Manual Transaxle without VSC
*B for CVT, Manual Transaxle with VSC
*1 Front Airbag Sensor RH
*2 Airbag ECU Assembly


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.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Clear DTCs
50002 188

f.

Turn the ignition switch off.


g.

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


h.

Check for DTCs.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM>DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Trouble Codes
50001 188
HINT:

Codes other than DTCs B1610/13 and B1615/14 may be output at this time, but they are not related to this check.



Result:
Result Proceed to
DTCs B1610/13 and B1615/14 are not output. A
DTC B1615/14 is output. B
DTC B1610/13 is output. C


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.



A

USE SIMULATION METHOD TO CHECK

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING


B

REPLACE AIRBAG ECU ASSEMBLY

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>CENTER AIRBAG SENSOR ASSEMBLY>REMOVAL


C

REPLACE FRONT AIRBAG SENSOR LH

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>FRONT AIRBAG SENSOR>REMOVAL