RM35X0E _58 Vehicle Interior _079257 SUPPLEMENTAL RESTRAINT SYSTEMS _0385034 AIRBAG SYSTEM(for Type B) C

SUPPLEMENTAL RESTRAINT SYSTEMS  AIRBAG SYSTEM(for Type B)  B165B  2nd Seat Seat Belt Buckle Switch (RH)  


DESCRIPTION

The seat belt buckle switch RH circuit consists of the airbag sensor assembly and rear seat inner belt assembly RH.

DTC B165B is stored when a malfunction is detected in the seat belt buckle switch RH circuit.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B165B 2nd Seat Seat Belt Buckle Switch (RH) One of the following conditions is met:
·

The airbag sensor assembly detects a line short, short to ground or B+, or an open in the seat belt buckle switch RH circuit.

·

A rear seat inner belt assembly RH (seat belt buckle switch RH) malfunction.

·

An airbag sensor assembly malfunction.


·

Floor wire

·

No. 2 floor wire

·

Instrument panel wire

·

Rear seat inner belt assembly RH

·

Rear center seat inner belt assembly

·

Airbag sensor assembly


Comes on Not applicable

WIRING DIAGRAM

C413931
2.406,0.76 3.115,1.365 0.708,0.604 10 false RHB+ 2.448,2.198 3.125,2.677 0.677,0.479 10 false RHB- 5.406,0.896 5.833,1.333 0.427,0.438 10 false RBR+ 5.406,2.073 5.865,2.5 0.458,0.427 10 false RBR- 2.906,0.781 3.271,1.24 0.365,0.458 10 false 4 2.896,1.958 3.229,2.375 0.333,0.417 10 false 8 5.125,0.802 5.5,1.333 0.375,0.531 10 false 29 5.135,1.958 5.448,2.365 0.313,0.406 10 false 30 1.813,2.938 2.625,3.323 0.813,0.385 10 false V14 0.365,3.167 1.646,3.677 1.281,0.51 10 false Rear Seat Inner Belt Assembly RH 5.323,2.906 5.74,3.344 0.417,0.438 10 false W1 5.323,3.073 6.958,3.479 1.635,0.406 10 false Airbag Sensor Assembly 4.479,0.906 4.938,1.104 0.458,0.198 10 false NW3 4.479,2.094 4.938,2.292 0.458,0.198 10 false NW3 3.323,0.917 3.781,1.115 0.458,0.198 10 false NV3 3.323,2.083 3.781,2.281 0.458,0.198 10 false NV3 4.396,1.156 5.01,1.354 0.615,0.198 10 false RBR+ 4.406,2.323 5.021,2.521 0.615,0.198 10 false RBR- 3.302,1.167 3.917,1.365 0.615,0.198 10 false RBR+ 3.313,2.344 3.927,2.542 0.615,0.198 10 false RBR- 4.5,0.667 4.656,0.865 0.156,0.198 10 false 1 3.396,0.677 3.552,0.875 0.156,0.198 10 false 6 3.417,1.833 3.573,2.031 0.156,0.198 10 false 7 4.531,1.823 4.688,2.021 0.156,0.198 10 false 6 0.385,2.969 0.875,3.542 0.49,0.573 10 false A 1.74,3.156 3.021,3.667 1.281,0.51 10 false Rear Center Seat Inner Belt Assembly 1.781,0.76 2.229,1.469 0.448,0.708 10 false 3 1.771,1.948 2.365,2.583 0.594,0.635 10 false 4

PROCEDURE

1.CHECK CONNECTION OF CONNECTORS
a.

Turn the ignition switch off.


b.

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


c.

Check that the connectors are properly connected to the airbag sensor assembly and rear seat inner belt assembly RH.


Result:
Proceed to
Connectors are properly connected
Connectors are not properly connected



Connectors are properly connected

2.CHECK CONNECTORS

Connectors are not properly connected

CONNECT CONNECTORS PROPERLY

2.CHECK CONNECTORS
a.
C414481C01
0.313,1.573 0.625,1.771 0.313,0.198 10 false *1 2.729,1.427 3.042,1.625 0.313,0.198 10 false *2 0.906,1.292 1.219,1.49 0.313,0.198 10 false *3 1.958,1.302 2.271,1.5 0.313,0.198 10 false *4
*1 Rear Seat Inner Belt Assembly RH
*2 Airbag Sensor Assembly
*3 Rear Center Seat Inner Belt Assembly
*4 No. 2 Floor Wire


Disconnect the connectors from the airbag sensor assembly and rear seat inner belt assembly RH.


b.

Check that the connectors (on the airbag sensor assembly side and rear seat inner belt assembly RH side) are not damaged.


Result:
Proceed to
Connectors are not deformed or damaged
Connectors are deformed or damaged



Connectors are not deformed or damaged

3.CHECK REAR SEAT INNER BELT ASSEMBLY RH CIRCUIT

Connectors are deformed or damaged

REPLACE REAR CENTER SEAT INNER BELT ASSEMBLY OR NO. 2 FLOOR WIRE

3.CHECK REAR SEAT INNER BELT ASSEMBLY RH CIRCUIT
a.

Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

C413932C01
3.948,1.948 4.292,2.219 0.344,0.271 2.938,1.76 3.25,1.99 0.313,0.229 4.802,2.344 5.146,1.958 5.146,1.958 5.229,1.958 true 4.854,2.365 5.167,2.167 5.167,2.167 5.25,2.167 true 4.948,2.594 5.208,2.646 5.208,2.646 5.292,2.646 true 1.396,1.281 1.708,1.438 0.313,0.156 10 false *1 5.771,1.083 6.083,1.24 0.313,0.156 10 false *2 2.344,0.99 2.656,1.146 0.313,0.156 10 false *3 4.74,0.99 5.052,1.146 0.313,0.156 10 false *6 1.771,1.594 2.083,1.75 0.313,0.156 10 false *a 3.979,1.594 4.292,1.75 0.313,0.156 10 false *b 5.365,0.76 5.521,0.958 0.156,0.198 10 false A 5.052,0.75 5.302,0.938 0.25,0.188 10 false B 4.427,0.75 4.677,0.938 0.25,0.188 10 false C 4.25,0.75 4.5,0.938 0.25,0.188 10 false D 3.625,0.75 3.875,0.938 0.25,0.188 10 false E 3.458,0.76 3.708,0.948 0.25,0.188 10 false F 2.802,0.75 3.052,0.938 0.25,0.188 10 false G 2.635,0.75 2.885,0.938 0.25,0.188 10 false H 5.281,1.875 5.896,2.073 0.615,0.198 10 false RBR+ 5.302,2.104 5.917,2.302 0.615,0.198 10 false RBR- 4,2 4.458,2.198 0.458,0.198 10 false W1 3.042,1.802 3.5,2 0.458,0.198 10 false A 3.104,0.99 3.417,1.146 0.313,0.156 10 false *4 3.906,0.99 4.219,1.146 0.313,0.156 10 false *5 2.042,0.75 2.729,1.156 0.688,0.406 10 false I 1.688,0.76 1.844,0.958 0.156,0.198 10 false J 5.344,2.573 5.656,2.771 0.313,0.198 10 false *7
*1 Rear Seat Inner Belt Assembly RH *2 Airbag Sensor Assembly
*3 Rear Center Seat Inner Belt Assembly *4 Floor Wire
*5 Instrument Panel Wire *6 No. 2 Floor Wire
*7 Service Wire - -
*a Front view of wire harness connector
(to Rear Seat Inner Belt Assembly RH) 		*b Front view of wire harness connector
(to Airbag Sensor Assembly)



b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
A-3 - Body ground Ignition switch ON Below 1 V
A-4 - Body ground Ignition switch ON Below 1 V



d.

Turn the ignition switch off.


e.

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


f.

Using a service wire, connect terminals 29 (RBR+) and 30 (RBR-) of connector B.

NOTICE:

Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.



g.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A-3 - A-4 Always Below 1 Ω



h.

Disconnect the service wire from connector B.


i.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A-3 - A-4 Always 1 MΩ or higher
A-3 - Body ground Always 1 MΩ or higher
A-4 - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK DTC

NG

7.CHECK CONNECTORS
4.CHECK DTC
a.
C414526C01
0.458,1.625 0.771,1.823 0.313,0.198 10 false *1 2.594,1.427 2.906,1.625 0.313,0.198 10 false *2
*1 Rear Seat Inner Belt Assembly RH
*2 Airbag Sensor Assembly


Connect the connectors to the airbag sensor assembly and rear seat inner belt assembly RH.


b.

Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.


c.

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


d.

Clear the DTCs stored in memory.

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

Body Electrical > SRS Airbag > Clear DTCs
50002 188

e.

Turn the ignition switch off.


f.

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


g.

Check for DTCs.

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

Body Electrical > SRS Airbag > Trouble Codes
50001 188
Result:
Proceed to
DTC B165B is not output
DTC B165B is output


HINT:

Codes other than DTC B165B may be output at this time, but they are not related to this check.




DTC B165B is output

5.REPLACE REAR SEAT INNER BELT ASSEMBLY RH

DTC B165B is not output

USE SIMULATION METHOD TO CHECK

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


5.REPLACE REAR SEAT INNER BELT ASSEMBLY RH
a.

Turn the ignition switch off.


b.

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


c.

Replace the rear seat inner belt assembly RH.

Click hereVehicle Interior>SEAT BELT>REAR SEAT INNER BELT ASSEMBLY (for Van)>REMOVAL

HINT:

Perform the inspection using parts from a normal vehicle if possible.



Result:
Proceed to
NEXT



NEXT

6.CHECK DTC
6.CHECK DTC
a.
C414526C02
0.458,1.625 0.771,1.823 0.313,0.198 10 false *1 2.594,1.427 2.906,1.625 0.313,0.198 10 false *2
*1 Rear Seat Inner Belt Assembly RH
*2 Airbag Sensor Assembly


Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.


b.

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


c.

Clear the DTCs stored in memory.

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

Body Electrical > SRS Airbag > Clear DTCs
50002 188

d.

Turn the ignition switch off.


e.

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


f.

Check for DTCs.

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

Body Electrical > SRS Airbag > Trouble Codes
50001 188
Result:
Proceed to
DTC B165B is not output
DTC B165B is output


HINT:

Codes other than DTC B165B may be output at this time, but they are not related to this check.




DTC B165B is not output

END (REAR SEAT INNER BELT ASSEMBLY RH WAS DEFECTIVE)

DTC B165B is output

REPLACE AIRBAG SENSOR ASSEMBLY

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


7.CHECK CONNECTORS
a.
C413965C02
0.292,1.792 0.604,1.948 0.313,0.156 10 false *1 2.813,1.604 3.125,1.76 0.313,0.156 10 false *2 1.635,1.49 1.948,1.646 0.313,0.156 10 false *3 2.115,1.49 2.427,1.646 0.313,0.156 10 false *4
*1 Rear Seat Inner Belt Assembly RH
*2 Airbag Sensor Assembly
*3 Instrument Panel Wire
*4 No. 2 Floor Wire


Disconnect the connectors from the instrument panel wire and No. 2 floor wire.


b.

Check that the connector (on the instrument panel wire side and No. 2 floor wire side) is not damaged.


Result:
Proceed to
The connector is not deformed or damaged
The connector is deformed or damaged



The connector is not deformed or damaged

8.CHECK NO. 2 FLOOR WIRE

The connector is deformed or damaged

REPLACE NO. 2 FLOOR WIRE OR INSTRUMENT PANEL WIRE

8.CHECK NO. 2 FLOOR WIRE
a.

Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

C413968C02
4.49,1.865 4.833,2.083 0.344,0.219 3.813,1.781 4.229,2.01 0.417,0.229 3.771,2.5 3.688,2.5 3.688,2.5 3.438,2.052 true 3.792,2.281 3.708,2.281 3.708,2.281 3.458,1.969 true 5.323,2.24 5.698,1.802 5.698,1.802 5.781,1.802 true 5.375,2.229 5.688,2.042 5.688,2.042 5.771,2.042 true 5.677,2.594 5.51,2.594 5.51,2.594 5.354,2.51 true 0.865,1.333 1.177,1.531 0.313,0.198 10 false *1 5.917,1.156 6.229,1.354 0.313,0.198 10 false *2 3.396,1.042 3.708,1.24 0.313,0.198 10 false *3 4.625,1.073 4.938,1.271 0.313,0.198 10 false *4 5.552,0.833 5.708,1.031 0.156,0.198 10 false A 5.229,0.823 5.5,1.188 0.271,0.365 10 false B 4.094,0.813 4.427,1.063 0.333,0.25 10 false C 3.76,0.813 4.115,1.385 0.354,0.573 10 false D 3.115,0.813 3.771,1.344 0.656,0.531 10 false E 2.948,0.813 3.198,1.208 0.25,0.396 10 false F 2.271,0.813 2.5,1.219 0.229,0.406 10 false G 2.094,0.813 2.406,1.219 0.313,0.406 10 false H 3.823,2.438 4.438,2.635 0.615,0.198 10 false RBR- 3.875,2.208 4.49,2.406 0.615,0.198 10 false RBR+ 4.552,1.896 5.01,2.094 0.458,0.198 10 false W1 2.646,1.479 2.958,1.677 0.313,0.198 10 false *a 4.51,1.49 4.823,1.688 0.313,0.198 10 false *b 3.865,1.823 4.323,2.021 0.458,0.198 10 false NW3 5.844,1.729 6.458,1.927 0.615,0.198 10 false RBR+ 5.823,1.969 6.438,2.167 0.615,0.198 10 false RBR- 5.74,2.521 6.052,2.719 0.313,0.198 10 false *5 1.479,0.802 1.885,1.479 0.406,0.677 10 false I 1.219,0.813 1.885,1.563 0.667,0.75 10 false J
*1 Rear Seat Inner Belt Assembly RH *2 Airbag Sensor Assembly
*3 Instrument Panel Wire *4 No. 2 Floor Wire
*5 Service Wire - -
*a Front view of wire harness connector
(to Instrument Panel Wire) 		*b Front view of wire harness connector
(to Airbag Sensor Assembly)



b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
NW3-1 (RBR+) - Body ground Ignition switch ON Below 1 V
NW3-6 (RBR-) - Body ground Ignition switch ON Below 1 V



d.

Turn the ignition switch off.


e.

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


f.

Using a service wire, connect terminals 29 (RBR+) and 30 (RBR-) of connector B.

NOTICE:

Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.



g.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
NW3-1 (RBR+) - NW3-6 (RBR-) Always Below 1 Ω



h.

Disconnect the service wire from connector B.


i.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
NW3-1 (RBR+) - NW3-6 (RBR-) Always 1 MΩ or higher
NW3-1 (RBR+) - Body ground Always 1 MΩ or higher
NW3-6 (RBR-) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

9.CHECK CONNECTORS

NG

REPLACE NO. 2 FLOOR WIRE

9.CHECK CONNECTORS
a.
C413966C01
0.302,1.792 0.615,1.948 0.313,0.156 10 false *1 2.76,1.635 3.073,1.792 0.313,0.156 10 false *2 1.698,1.531 2.01,1.688 0.313,0.156 10 false *4 1.271,1.521 1.583,1.677 0.313,0.156 10 false *3
*1 Rear Seat Inner Belt Assembly RH
*2 Airbag Sensor Assembly
*3 Floor Wire
*4 Instrument Panel Wire


Disconnect the connectors from the instrument panel wire and floor wire.


b.

Check that the connector (on the instrument panel wire side and floor wire side) is not damaged.


Result:
Proceed to
The connector is not deformed or damaged
The connector is deformed or damaged



The connector is not deformed or damaged

10.CHECK INSTRUMENT PANEL WIRE

The connector is deformed or damaged

REPLACE INSTRUMENT PANEL WIRE OR FLOOR WIRE

10.CHECK INSTRUMENT PANEL WIRE
a.

Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.

C413969C03
5.417,1.781 5.813,2.042 0.396,0.26 3.375,1.792 3.708,2.052 0.333,0.26 3.24,2.396 3.073,2.396 3.073,2.396 2.917,1.938 true 2.438,2.406 2.604,2.406 2.604,2.406 2.844,1.938 true 4.74,1.854 4.917,1.417 4.917,1.417 5.083,1.417 true 4.729,1.958 5.031,2.552 5.031,2.552 5.198,2.552 true 4.302,2.24 4.375,2.021 true 0.698,1.229 1.01,1.427 0.313,0.198 10 false *1 5.979,1.042 6.292,1.24 0.313,0.198 10 false *2 2.49,0.948 2.802,1.146 0.313,0.198 10 false *3 4.24,2.271 4.573,2.521 0.333,0.25 10 false *5 5.542,0.729 5.698,0.927 0.156,0.198 10 false A 5.229,0.719 5.5,1.083 0.271,0.365 10 false B 4.594,0.719 4.927,0.969 0.333,0.25 10 false C 4.281,0.719 4.635,1.292 0.354,0.573 10 false D 3.156,0.719 3.813,1.25 0.656,0.531 10 false E 2.854,0.719 3.104,1.115 0.25,0.396 10 false F 2.198,0.719 2.427,1.125 0.229,0.406 10 false G 2.021,0.719 2.333,1.125 0.313,0.406 10 false H 3.313,2.323 3.927,2.521 0.615,0.198 10 false RBR- 2.01,2.313 2.625,2.51 0.615,0.198 10 false RBR+ 5.469,1.823 5.927,2.021 0.458,0.198 10 false NW3 1.99,1.385 2.302,1.583 0.313,0.198 10 false *a 4.146,1.385 4.458,1.583 0.313,0.198 10 false *b 3.417,1.844 3.875,2.042 0.458,0.198 10 false NV3 5.146,1.354 5.76,1.552 0.615,0.198 10 false RBR+ 5.24,2.51 5.854,2.708 0.615,0.198 10 false RBR- 3.646,0.948 3.958,1.146 0.313,0.198 10 false *4 1.427,0.708 1.813,1.26 0.385,0.552 10 false I 1.083,0.719 1.458,1.344 0.375,0.625 10 false J
*1 Rear Seat Inner Belt Assembly RH *2 Airbag Sensor Assembly
*3 Floor Wire *4 Instrument Panel Wire
*5 Service Wire - -
*a Front view of wire harness connector
(to Floor Wire) 		*b Front view of wire harness connector
(to No. 2 Floor Wire)



b.

Turn the ignition switch to ON.


c.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Switch Condition Specified Condition
NV3-6 (RBR+) - Body ground Ignition switch ON Below 1 V
NV3-7 (RBR-) - Body ground Ignition switch ON Below 1 V



d.

Turn the ignition switch off.


e.

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


f.

Using a service wire, connect terminals 1 (RBR+) and 6 (RBR-) of connector D.

NOTICE:

Do not forcibly insert the service wire into the terminals of the connector when connecting a service wire.



g.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
NV3-6 (RBR+) - NV3-7 (RBR-) Always Below 1 Ω



h.

Disconnect the service wire from connector D.


i.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
NV3-6 (RBR+) - NV3-7 (RBR-) Always 1 MΩ or higher
NV3-6 (RBR+) - Body ground Always 1 MΩ or higher
NV3-7 (RBR-) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

11.INSPECT REAR CENTER SEAT INNER BELT ASSEMBLY

NG

REPLACE INSTRUMENT PANEL WIRE

11.INSPECT REAR CENTER SEAT INNER BELT ASSEMBLY
a.

Remove the rear center seat inner belt assembly.

Click hereVehicle Interior>SEAT BELT>REAR SEAT INNER BELT ASSEMBLY (for Van)>REMOVAL


b.

Inspect the rear seat inner belt assembly.

Click hereVehicle Interior>SEAT BELT>REAR SEAT INNER BELT ASSEMBLY (for Van)>INSPECTION


Result:
Proceed to
OK
NG



OK

REPLACE FLOOR WIRE

NG

REPLACE REAR CENTER SEAT INNER BELT ASSEMBLY

Click hereVehicle Interior>SEAT BELT>REAR SEAT INNER BELT ASSEMBLY (for Van)>REMOVAL