RM35X0E _58 Vehicle Interior _079257 SUPPLEMENTAL RESTRAINT SYSTEMS _0396679 AIRBAG SYSTEM(for Type C) C

SUPPLEMENTAL RESTRAINT SYSTEMS  AIRBAG SYSTEM(for Type C)  B1685  Rear Floor No.2 Airbag Sensor LH  B1687  Lost Communication with Rear Floor No.2 Airbag Sensor LH  


DESCRIPTION

The side collision sensor LH circuit consists of the airbag sensor assembly, No. 4 side airbag sensor LH, No. 2 side airbag sensor LH and No. 3 side airbag sensor LH.

The No. 4 side airbag sensor LH detects impacts to the vehicle and sends signals to the airbag sensor assembly to determine if the SRS should be deployed.

These DTCs are stored when a malfunction is detected in the No. 4 side airbag sensor LH or airbag sensor assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1685 Rear Floor No.2 Airbag Sensor LH Either condition is met:
·

A No. 4 side airbag sensor LH malfunction.

·

An airbag sensor assembly malfunction.


·

No. 4 side airbag sensor LH

·

Airbag sensor assembly


Comes on Not applicable
B1687 Lost Communication with Rear Floor No.2 Airbag Sensor LH Either condition is met:
·

A No. 4 side airbag sensor LH malfunction.

·

An airbag sensor assembly malfunction.


·

No. 4 side airbag sensor LH

·

Airbag sensor assembly


Comes on Not applicable

WIRING DIAGRAM

C417471
5.542,4.75 6.24,5.656 0.698,0.906 10 false V1 5.542,4.917 7.125,5.125 1.583,0.208 10 false Airbag Sensor Assembly 5.667,0.5 6.5,1.198 0.833,0.698 10 false BBL+ 5.646,1.125 6.479,1.823 0.833,0.698 10 false BBL- 5.365,0.385 6.208,1.385 0.844,1 10 false 32 5.365,0.948 6.031,1.781 0.667,0.833 10 false 31 0.271,2.781 3.229,3.531 2.958,0.75 10 false No. 4 Side Airbag Sensor LH 0.26,2.615 0.833,3.167 0.573,0.552 10 false V24 1.74,0.385 2.771,1.188 1.031,0.802 10 false 4 1.729,0.979 2.76,1.781 1.031,0.802 10 false 3 1.719,1.531 2.75,2.333 1.031,0.802 10 false 1 1.708,2.156 2.74,2.958 1.031,0.802 10 false 2 1.188,0.521 2.135,1.021 0.948,0.5 10 false BBL+ 1.198,1.094 3.083,1.896 1.885,0.802 10 false BBL- 1.188,2.281 3.073,3.083 1.885,0.802 10 false BCL- 1.177,1.708 2.125,2.208 0.948,0.5 10 false BCL+ 4.177,1.708 5.125,2.208 0.948,0.5 10 false BCL+ 4.188,4.354 6.073,5.156 1.885,0.802 10 false BDL- 3.927,1.563 4.958,2.365 1.031,0.802 10 false 4 3.917,2.135 4.948,2.938 1.031,0.802 10 false 3 4.198,2.302 6.083,3.104 1.885,0.802 10 false BCL- 1.198,3.792 2.146,4.292 0.948,0.5 10 false BDL+ 4.167,3.802 5.115,4.302 0.948,0.5 10 false BDL+ 2.677,4.552 4.563,5.354 1.885,0.802 10 false BDL- 2.646,4 3.594,4.5 0.948,0.5 10 false BDL+ 1.219,4.344 3.104,5.146 1.885,0.802 10 false BDL- 3.625,4.792 5.656,5.719 2.031,0.927 10 false No. 2 Side Airbag Sensor LH 3.604,4.625 5.51,5.073 1.906,0.448 10 false V25 0.281,4.854 2.917,5.396 2.635,0.542 10 false No. 3 Side Airbag Sensor LH 0.281,4.677 0.781,5.073 0.5,0.396 10 false T7 2.677,3.802 3.135,4 0.458,0.198 10 false TV2 2.677,4.344 3.135,4.542 0.458,0.198 10 false TV2 3.958,4.219 4.99,5.021 1.031,0.802 10 false 2 2.76,3.594 3.792,4.396 1.031,0.802 10 false 2 1.667,4.229 2.698,5.031 1.031,0.802 10 false 1 1.677,3.677 2.708,4.479 1.031,0.802 10 false 2 3.938,3.667 4.969,4.469 1.031,0.802 10 false 1 2.76,4.146 3.792,4.948 1.031,0.802 10 false 1

CAUTION / NOTICE / HINT

NOTICE:
·

After the engine switch is turned off, there may be a waiting time before disconnecting the negative (-) battery terminal.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>BEFORE DISCONNECTING BATTERY

·

When disconnecting and reconnecting the battery

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>WORK PROCEDURE

HINT:

When disconnecting and reconnecting the battery, there is an automatic learning function that completes learning when the respective system is used.

Click hereGeneral>SETUP>WHEN DISCONNECTING OR RECONNECTING BATTERY TERMINAL>AUTOMATIC LEARNING CHART


·

After replacing the airbag sensor assembly, refer to initialization.

Click hereGeneral>SETUP>WHEN REPLACING OR REMOVING/INSTALLING PARTS>WORK PROCEDURE



PROCEDURE

1.CHECK NO. 4 SIDE AIRBAG SENSOR LH
a.
B529883C08
0.969,1.521 1.24,1.719 0.271,0.198 10 false *1 2.323,1.531 2.594,1.729 0.271,0.198 10 false *2
*1 No. 4 Side Airbag Sensor RH
*2 No. 2 Side Airbag Sensor LH


Turn the engine switch off.


b.

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


c.

Interchange the No. 4 side airbag sensor LH with RH 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 engine switch on (IG), and wait for at least 60 seconds.


f.

Clear the DTCs stored in memory.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type C)>DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Clear DTCs
50002 188

g.

Turn the engine switch off.


h.

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


i.

Check for DTCs.

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>AIRBAG SYSTEM (for Type C)>DTC CHECK / CLEAR

Body Electrical > SRS Airbag > Trouble Codes
50001 188
Result:
Proceed to
DTC B1685 or B1687 is output
DTC B1680 or B1682 is output
DTCs B1680, 1682, B1685 and B1687 are not output


HINT:

Codes other than DTCs B1680, 1682, B1685 and B1687 may be output at this time, but they are not related to this check.



j.

Turn the engine switch off.


k.

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


l.

Return the No. 4 side airbag sensor RH and LH to their original positions and connect the connectors to them.



DTC B1685 or B1687 is output

REPLACE AIRBAG SENSOR ASSEMBLY

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


DTC B1680 or B1682 is output

REPLACE NO. 4 SIDE AIRBAG SENSOR LH

Click hereVehicle Interior>SUPPLEMENTAL RESTRAINT SYSTEMS>SIDE AIRBAG SENSOR (for Rear Pillar)>REMOVAL


DTCs B1680, 1682, B1685 and B1687 are not output

USE SIMULATION METHOD TO CHECK

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