RM3660EC _58 Vehicle Interior _080741 SUPPLEMENTAL RESTRAINT SYSTEMS _0610731 AIRBAG SYSTEM(for NR Series Engine) C

SUPPLEMENTAL RESTRAINT SYSTEMS  AIRBAG SYSTEM(for NR Series Engine)  B1642  Side Satellite Sensor Bus Lost Communication (RH)  B1643  Side Satellite Sensor Bus Initialization Error (RH)  


DESCRIPTION

The side collision sensor RH circuit (bus 1) consists of the airbag sensor with ECU assembly, side airbag pressure sensor RH and side No. 2 airbag sensor RH.

The side airbag pressure sensor RH and side No. 2 airbag sensor RH detect impacts to the vehicle and send signals to the airbag sensor with ECU assembly to determine if the airbags and pretensioners should be deployed.

These DTCs are stored when a malfunction is detected in the side collision sensor RH circuit (bus 1).

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B1642 Side Satellite Sensor Bus Lost Communication (RH)
·

The airbag sensor with ECU assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1).

·

Side No. 2 airbag sensor RH malfunction

·

Side airbag pressure sensor RH malfunction

·

Airbag sensor with ECU assembly malfunction


·

Floor wire

·

Front door wire RH

·

Side No. 2 airbag sensor RH

·

Side airbag pressure sensor RH

·

Airbag sensor with ECU assembly


Comes on Does not apply to test/check mode
B1643 Side Satellite Sensor Bus Initialization Error (RH)
·

The airbag sensor with ECU assembly detects a line short, short to ground or B+, or an open in the side collision sensor RH circuit (bus 1).

·

Side No. 2 airbag sensor RH malfunction

·

Side airbag pressure sensor RH malfunction

·

Airbag sensor with ECU assembly malfunction


·

Floor wire

·

Front door wire RH

·

Side No. 2 airbag sensor RH

·

Side airbag pressure sensor RH

·

Airbag sensor with ECU assembly


Comes on Does not apply to test/check mode

WIRING DIAGRAM

B473433E88
4.594,1.99 6.781,2.271 2.188,0.281 10 false Airbag Sensor with ECU Assembly 4.594,1.823 6.26,2.188 1.667,0.365 10 false O17 5.219,0.948 5.844,1.271 0.625,0.323 10 false Interface 1.656,2.531 2.281,2.854 0.625,0.323 10 false Interface 4.927,3.229 6.51,3.573 1.583,0.344 10 false Interface 0.771,2.542 1.406,2.833 0.635,0.292 10 false Element 5.865,3.229 6.5,3.521 0.635,0.292 10 false Element 4.646,0.51 6.313,0.875 1.667,0.365 10 false BBR+ 4.646,1.177 6.313,1.542 1.667,0.365 10 false BBR- 4.396,0.51 4.979,0.875 0.583,0.365 10 false 25 4.396,1.177 6.063,1.542 1.667,0.365 10 false 26 2.396,1.427 4.063,1.792 1.667,0.365 10 false BCR+ 2.854,1.427 4.521,1.792 1.667,0.365 10 false 4 2.417,2.094 4.083,2.458 1.667,0.365 10 false BCR- 2.854,2.094 4.521,2.458 1.667,0.365 10 false 3 2.406,2.781 4.073,3.146 1.667,0.365 10 false BDR+ 2.844,2.781 4.51,3.146 1.667,0.365 10 false 1 2.417,3.458 4.083,3.823 1.667,0.365 10 false BDR- 2.844,3.469 4.51,3.833 1.667,0.365 10 false 2 3.438,2.885 5.104,3.25 1.667,0.365 10 false KO1 3.438,3.573 5.104,3.938 1.667,0.365 10 false KO1 3.49,2.688 5.156,3.052 1.667,0.365 10 false 22 3.49,3.375 5.156,3.74 1.667,0.365 10 false 40 4.208,2.781 5.875,3.146 1.667,0.365 10 false 2 4.208,3.458 5.875,3.823 1.667,0.365 10 false 1 4.375,2.781 6.042,3.146 1.667,0.365 10 false BDR+ 4.375,3.458 6.042,3.823 1.667,0.365 10 false BDR- 0.563,4.125 2.229,4.49 1.667,0.365 10 false O10 0.563,4.302 2.885,4.667 2.323,0.365 10 false Side No. 2 Airbag Sensor RH 4.333,4.125 6,4.49 1.667,0.365 10 false K7 4.333,4.302 6.448,4.563 2.115,0.26 10 false Side Airbag Pressure Sensor RH

CAUTION / NOTICE / HINT

NOTICE:
·

After the ignition 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

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




PROCEDURE

1.CHECK CONNECTION OF CONNECTORS
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.

Check that the connectors are properly connected to the airbag sensor with ECU assembly, side airbag pressure sensor RH and side No. 2 airbag sensor RH. Also check that the connectors that link the floor wire and front door wire RH are properly connected.

OK:

The connectors are properly connected.



Result:
Proceed to
OK
NG



OK

2.CHECK CONNECTORS

NG

CONNECT CONNECTORS PROPERLY

2.CHECK CONNECTORS
a.

Disconnect the connectors from the airbag sensor with ECU assembly, side airbag pressure sensor RH and side No. 2 airbag sensor RH. Also disconnect the connectors that link the floor wire and front door wire RH.


b.

Check that the terminals of the connectors are not deformed or damaged.

OK:

The terminals are not deformed or damaged.



Result:
Proceed to
OK
NG



OK

3.CHECK FLOOR WIRE

NG

REPLACE FLOOR WIRE OR FRONT DOOR WIRE RH

3.CHECK FLOOR WIRE
a.
B474702C05
0.823,0.844 1.188,1.063 0.365,0.219 0.885,3.74 1.25,3.958 0.365,0.219 1.271,1.719 1.635,1.292 false 2.094,1.719 1.74,1.292 false 1.698,1.823 1.698,1.677 false 1.625,2.854 1.625,2.375 1.625,2.375 1.458,2.375 false 1.729,4.26 1.948,3.865 false 2.302,4.26 2.063,3.865 false 0.76,2.844 1.219,3.344 0.458,0.5 10 false *1 2.521,2.573 3.031,2.948 0.51,0.375 10 false *2 1.313,2.292 1.844,2.833 0.531,0.542 10 false *3 1.635,1.823 2.115,2.24 0.479,0.417 10 false *4 0.656,0.177 1.156,0.677 0.5,0.5 10 false *a 0.698,3.417 1.156,3.792 0.458,0.375 10 false *b 2.188,2.844 2.698,3.219 0.51,0.375 10 false A 1.885,2.844 2.396,3.219 0.51,0.375 10 false B 1.292,2.844 1.802,3.219 0.51,0.375 10 false C 0.979,2.844 1.49,3.219 0.51,0.375 10 false D 1.115,1.729 1.573,2.229 0.458,0.5 10 false BBR+ 0.948,3.771 1.406,4.271 0.458,0.5 10 false O10 1.969,1.729 2.427,2.229 0.458,0.5 10 false BBR- 0.885,0.875 1.344,1.375 0.458,0.5 10 false O17 2.167,4.271 2.677,4.521 0.51,0.25 10 false BCR+ 1.573,4.271 2.083,4.521 0.51,0.25 10 false BCR-
*1 Side No. 2 Airbag Sensor RH
*2 Airbag Sensor with ECU Assembly
*3 Floor Wire
*4 Service Wire
*a Front view of wire harness connector
(to Airbag Sensor with ECU Assembly)
*b Front view of wire harness connector
(to Side No. 2 Airbag Sensor RH)


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


b.

Turn the ignition switch to ON.


c.

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

Standard Voltage:
Tester Connection Condition Specified Condition
O10-4 (BCR+) - Body ground Ignition switch ON Below 1 V
O10-3 (BCR-) - Body ground Ignition switch ON Below 1 V



d.

Turn the ignition switch off.


e.

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.



f.

Using a service wire, connect terminals 25 (BBR+) and 26 (BBR-) of connector B.

NOTICE:

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



g.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O10-4 (BCR+) - O10-3 (BCR-) 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
O10-4 (BCR+) - O10-3 (BCR-) Always 1 MΩ or higher
O10-4 (BCR+) - Body ground Always 1 MΩ or higher
O10-3 (BCR-) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK WIRE HARNESS

NG

REPLACE FLOOR WIRE

4.CHECK WIRE HARNESS
a.
C295812C15
0.833,0.625 1.25,0.875 0.417,0.25 0.5,3.615 0.865,3.865 0.365,0.25 0.948,4.146 1.375,3.771 false 2.052,4.167 1.656,3.76 false 1.531,4.385 1.531,4.219 false 1.448,1.24 1.76,0.781 false 2.219,1.24 1.938,0.781 false 1.448,2.344 1.448,1.906 1.448,1.906 1.24,1.906 false 1.958,2.771 1.958,2.469 false 0.552,2.333 1.042,2.781 0.49,0.448 10 false *1 2.719,2.333 3.208,2.802 0.49,0.469 10 false *2 1.469,4.385 1.854,4.667 0.385,0.281 10 false *5 0.635,0.177 1.073,0.656 0.438,0.479 10 false *a 0.354,3.167 0.792,3.813 0.438,0.646 10 false *b 2.385,2.333 2.875,2.802 0.49,0.469 10 false A 2.083,2.333 2.573,2.802 0.49,0.469 10 false B 1.74,2.333 2.229,2.802 0.49,0.469 10 false C 1.583,2.333 2.073,2.802 0.49,0.469 10 false D 1.229,2.333 1.719,2.802 0.49,0.469 10 false E 0.927,2.333 1.417,2.802 0.49,0.469 10 false F 1.302,1.25 1.844,1.521 0.542,0.271 10 false BDR+ 2.083,1.25 2.75,1.667 0.667,0.417 10 false BDR- 1.906,4.167 2.406,4.635 0.5,0.469 10 false BDR+ 0.792,4.167 1.292,4.5 0.5,0.333 10 false BDR- 0.917,0.667 1.458,0.938 0.542,0.271 10 false O10 0.604,3.656 1.146,3.927 0.542,0.271 10 false K7 1.083,1.833 1.469,2.115 0.385,0.281 10 false *3 1.896,2.792 2.281,3.073 0.385,0.281 10 false *4
*1 Side Airbag Pressure Sensor RH
*2 Side No. 2 Airbag Sensor RH
*3 Front Door Wire RH
*4 Floor Wire
*5 Service Wire
*a Front view of wire harness connector
(to Side No. 2 Airbag Sensor RH)
*b Front view of wire harness connector
(to Side Airbag Pressure Sensor RH)


Connect the connectors that link the floor wire and front door wire RH.


b.

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


c.

Turn the ignition switch to ON.


d.

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

Standard Voltage:
Tester Connection Condition Specified Condition
O10-1 (BDR+) - Body ground Ignition switch ON Below 1 V
O10-2 (BDR-) - Body ground Ignition switch ON Below 1 V



e.

Turn the ignition switch off.


f.

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.



g.

Using a service wire, connect terminals 2 (BDR+) and 1 (BDR-) of connector E.

NOTICE:

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



h.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O10-1 (BDR+) - O10-2 (BDR-) Always Below 1 Ω



i.

Disconnect the service wire from connector E.


j.

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

Standard Resistance:
Tester Connection Condition Specified Condition
O10-1 (BDR+) - O10-2 (BDR-) Always 1 MΩ or higher
O10-1 (BDR+) - Body ground Always 1 MΩ or higher
O10-2 (BDR-) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK SIDE NO. 2 AIRBAG SENSOR RH

NG

7.CHECK FLOOR WIRE
5.CHECK SIDE NO. 2 AIRBAG SENSOR RH
a.
C238218C02
0.802,1.156 1.438,1.75 0.635,0.594 10 false *1 2.302,0.885 2.594,1.208 0.292,0.323 10 false *2 1.719,1.167 2.021,1.604 0.302,0.438 10 false B 1.875,1.167 2.271,1.625 0.396,0.458 10 false A 1.271,1.167 1.552,1.583 0.281,0.417 10 false C 1.115,1.167 1.594,1.729 0.479,0.563 10 false D
*1 Side No. 2 Airbag Sensor LH
*2 Airbag Sensor with ECU Assembly


Connect the connectors to the side airbag pressure sensor RH and airbag sensor with ECU assembly.


b.

Interchange the side No. 2 airbag sensor RH with LH and connect the connectors.


c.

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


d.

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


e.

Clear the DTCs stored in memory.

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.

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

Codes other than DTCs B1642, B1643, B1647 and B1648 may be output at this time, but they are not related to this check.



Result:
Result Proceed to
DTC B1642 or B1643 is output. A
DTC B1647 or B1648 is output. B
DTCs B1642, B1643, B1647 and B1648 are not 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 side No. 2 airbag sensor RH and LH to their original positions and connect the connectors.



A

6.CHECK SIDE AIRBAG PRESSURE SENSOR RH

B

REPLACE SIDE NO. 2 AIRBAG SENSOR RH

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


C

USE SIMULATION METHOD TO CHECK

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


6.CHECK SIDE AIRBAG PRESSURE SENSOR RH
a.
C238395C02
0.719,1.021 1.51,1.656 0.792,0.635 10 false *1 2.552,1 2.906,1.406 0.354,0.406 10 false *2 2.26,1.021 2.531,1.51 0.271,0.49 10 false A 2.104,1.021 2.531,1.563 0.427,0.542 10 false B 1.76,1.021 2.24,1.583 0.479,0.563 10 false C 1.604,1.021 2.031,1.615 0.427,0.594 10 false D 1.26,1.021 1.708,1.625 0.448,0.604 10 false E 1.115,1.021 1.792,1.771 0.677,0.75 10 false F
*1 Side Airbag Pressure Sensor LH
*2 Side No. 2 Airbag Sensor RH


Interchange the side airbag pressure sensor RH with LH and connect the connectors.


b.

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


c.

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


d.

Clear the DTCs stored in memory.

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.

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

Codes other than DTCs B1642, B1643, B1647 and B1648 may be output at this time, but they are not related to this check.



Result:
Result Proceed to
DTC B1642 or B1643 is output. A
DTC B1647 or B1648 is output. B
DTCs B1642, B1643, B1647 and B1648 are not output. C


h.

Turn the ignition switch off.


i.

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.



j.

Return the side airbag pressure sensor RH and LH to their original positions and connect the connectors.



A

REPLACE AIRBAG SENSOR WITH ECU ASSEMBLY

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


B

REPLACE SIDE AIRBAG PRESSURE SENSOR RH

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


C

USE SIMULATION METHOD TO CHECK

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


7.CHECK FLOOR WIRE
a.
C284681C39
0.844,0.542 1.229,0.792 0.385,0.25 0.417,2.833 0.813,3.052 0.396,0.219 1.844,1.344 1.844,1.094 false 1.333,1.167 1.771,0.667 false 2.333,1.167 1.917,0.667 false 1.333,2.229 1.333,2.479 false 1.906,1.771 2.073,1.771 2.073,1.771 2.073,2.104 false 1.063,4.302 1.396,3.625 false 1.729,4.313 1.417,3.76 false 0.417,2.083 0.813,2.49 0.396,0.406 10 false *1 2.865,2.094 3.26,2.667 0.396,0.573 10 false *2 1.271,2.479 1.604,2.719 0.333,0.24 10 false *3 1.75,1.698 2.146,2.031 0.396,0.333 10 false *4 1.781,1.354 2.198,1.677 0.417,0.323 10 false *5 0.604,0.167 1,0.583 0.396,0.417 10 false *a 0.156,2.833 0.552,3.24 0.396,0.406 10 false *b 2.542,2.083 2.938,2.656 0.396,0.573 10 false A 2.24,2.083 2.635,2.656 0.396,0.573 10 false B 1.813,2.083 2.208,2.656 0.396,0.573 10 false C 1.521,2.083 1.917,2.656 0.396,0.573 10 false D 1.094,2.083 1.49,2.656 0.396,0.573 10 false E 0.792,2.083 1.188,2.656 0.396,0.573 10 false F 1.177,1.167 1.677,1.5 0.5,0.333 10 false BDR+ 2.198,1.167 2.698,1.5 0.5,0.333 10 false BDR- 0.896,4.313 1.396,4.646 0.5,0.333 10 false BDR+ 1.594,4.313 2.094,4.646 0.5,0.333 10 false BDR- 0.917,0.583 1.417,0.917 0.5,0.333 10 false O10 0.479,2.854 0.979,3.188 0.5,0.333 10 false KO1
*1 Side Airbag Pressure Sensor RH
*2 Side No. 2 Airbag Sensor RH
*3 Front Door Wire RH
*4 Floor Wire
*5 Service Wire
*a Front view of wire harness connector
(to Side No. 2 Airbag Sensor RH)
*b Front view of wire harness connector
(to Front Door Wire RH)


Disconnect the floor wire connector from the front door wire RH.


b.

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


c.

Turn the ignition switch to ON.


d.

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

Standard Voltage:
Tester Connection Condition Specified Condition
KO1-22 (BDR+) - Body ground Ignition switch ON Below 1 V
KO1-40 (BDR-) - Body ground Ignition switch ON Below 1 V



e.

Turn the ignition switch off.


f.

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.



g.

Using a service wire, connect terminals 1 (BDR+) and 2 (BDR-) of connector B.

NOTICE:

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



h.

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

Standard Resistance:
Tester Connection Condition Specified Condition
KO1-22 (BDR+) - KO1-40 (BDR-) Always Below 1 Ω



i.

Disconnect the service wire from connector B.


j.

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

Standard Resistance:
Tester Connection Condition Specified Condition
KO1-22 (BDR+) - KO1-40 (BDR-) Always 1 MΩ or higher
KO1-22 (BDR+) - Body ground Always 1 MΩ or higher
KO1-40 (BDR-) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE FRONT DOOR WIRE RH

NG

REPLACE FLOOR WIRE