RM38T0EC _58 Vehicle Interior _115188 SUPPLEMENTAL RESTRAINT SYSTEMS _0511913 AIRBAG SYSTEM C

SUPPLEMENTAL RESTRAINT SYSTEMS  AIRBAG SYSTEM  B009083  Left Frontal Restraints Sensor Value of Signal Protection Calculation Incorrect  


DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode
B009083 Left Frontal Restraints Sensor Value of Signal Protection Calculation Incorrect One of the following conditions is met:
·

The airbag ECU assembly detects a line short circuit signal, open circuit signal, short circuit to ground signal or short circuit to B+ signal in the front airbag sensor LH circuit for 2 seconds.

·

Front airbag sensor LH malfunction

·

Airbag ECU assembly malfunction


·

Harness or connector

·

Front airbag sensor LH

·

Airbag ECU assembly


Comes on Does not apply to test/check mode

DTC Detection Conditions:
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4 Pattern 5 Pattern 6
Diagnosis Condition Ignition switch ON ○ ○ ○ ○ ○ ○
Malfunction Status The airbag ECU assembly detects a line short circuit signal in the front airbag sensor LH circuit. ○ - - - - -
The airbag ECU assembly detects an open circuit signal in the front airbag sensor LH circuit. - ○ - - - -
The airbag ECU assembly detects a short circuit to ground signal in the front airbag sensor LH circuit. - - ○ - - -
The airbag ECU assembly detects a short circuit to B+ signal in the front airbag sensor LH circuit. - - - ○ - -
Front airbag sensor LH malfunction - - - - ○ -
Airbag ECU assembly malfunction - - - - - ○
Detection Time 2 seconds 2 seconds 2 seconds 2 seconds 2 seconds 2 seconds
Number of Trips 1 trip 1 trip 1 trip 1 trip 1 trip 1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.


WIRING DIAGRAM

C465715E01
4.781,2.896 6.854,3.365 2.073,0.469 10 false Airbag ECU Assembly 4.771,2.719 5.271,2.906 0.5,0.188 10 false I47 4.583,1.021 5.042,1.323 0.458,0.302 10 false 30 4.583,1.698 5.333,2.073 0.75,0.375 10 false 31 4.833,1.021 5.292,1.323 0.458,0.302 10 false +SL 4.844,1.698 5.594,2.073 0.75,0.375 10 false -SL 5.479,1.448 6.156,1.74 0.677,0.292 10 false Interface 1.771,1.448 2.448,1.74 0.677,0.292 10 false Interface 0.76,1.448 1.438,1.74 0.677,0.292 10 false Element 3.042,1.021 3.5,1.323 0.458,0.302 10 false 2 3.042,1.708 3.5,2.01 0.458,0.302 10 false 1 2.667,1.021 3.125,1.323 0.458,0.302 10 false +SL 2.708,1.708 3.458,2.083 0.75,0.375 10 false -SL 0.563,2.344 1.031,2.521 0.469,0.177 10 false A7 0.563,2.521 2.635,2.99 2.073,0.469 10 false Front Airbag Sensor LH

CAUTION / NOTICE / HINT

NOTICE:
·

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

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

HINT:

When disconnecting and reconnecting the auxiliary 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 (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.



c.

Check that the connectors are properly connected to the airbag ECU assembly and front airbag sensor LH.

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 ECU assembly and front airbag sensor LH.


b.
C214663C16
1.427,0.51 1.594,0.51 1.594,0.51 1.594,1.01 false 2.625,1 3,1.323 0.375,0.323 10 false *2 1.25,0.396 1.583,0.552 0.333,0.156 10 false *3 0.521,1 0.833,1.219 0.313,0.219 10 false *1
*1 Front Airbag Sensor LH
*2 Airbag ECU Assembly
*3 Wire Harness


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

OK:

The terminals of the connectors are not deformed or damaged.



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (SHORT)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (SHORT)
a.
C465727C01
0.833,2.167 1.177,2.396 0.344,0.229 1.552,2.667 1.865,2.26 true 2.438,2.635 2.073,2.25 true 1.646,0.74 1.646,0.365 1.646,0.365 1.479,0.365 false 0.698,0.729 0.969,0.938 0.271,0.208 10 false *1 2.542,0.719 2.844,1.01 0.302,0.292 10 false *2 1.313,0.281 1.573,0.448 0.26,0.167 10 false *3 0.667,1.771 1,2 0.333,0.229 10 false *a 2.188,0.719 2.365,0.927 0.177,0.208 10 false A 1.885,0.719 2.083,0.927 0.198,0.208 10 false B 1.292,0.719 1.5,0.927 0.208,0.208 10 false C 0.99,0.719 1.219,0.927 0.229,0.208 10 false D 0.917,2.188 1.188,2.365 0.271,0.177 10 false A7 2.375,2.677 2.813,2.844 0.438,0.167 10 false +SL 1.385,2.698 1.854,2.948 0.469,0.25 10 false -SL
*1 Front Airbag Sensor LH
*2 Airbag ECU Assembly
*3 Wire Harness
*a Front view of wire harness connector
(to Front Airbag Sensor LH)


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

Standard Resistance:
Tester Connection Condition Specified Condition
A7-2 (+SL) - A7-1 (-SL) Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (SHORT TO GROUND)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (SHORT TO GROUND)
a.
C465727C01
0.833,2.167 1.177,2.396 0.344,0.229 1.552,2.667 1.865,2.26 true 2.438,2.635 2.073,2.25 true 1.646,0.74 1.646,0.365 1.646,0.365 1.479,0.365 false 0.698,0.729 0.969,0.938 0.271,0.208 10 false *1 2.542,0.719 2.844,1.01 0.302,0.292 10 false *2 1.313,0.281 1.573,0.448 0.26,0.167 10 false *3 0.667,1.771 1,2 0.333,0.229 10 false *a 2.188,0.719 2.365,0.927 0.177,0.208 10 false A 1.885,0.719 2.083,0.927 0.198,0.208 10 false B 1.292,0.719 1.5,0.927 0.208,0.208 10 false C 0.99,0.719 1.219,0.927 0.229,0.208 10 false D 0.917,2.188 1.188,2.365 0.271,0.177 10 false A7 2.375,2.677 2.813,2.844 0.438,0.167 10 false +SL 1.385,2.698 1.854,2.948 0.469,0.25 10 false -SL
*1 Front Airbag Sensor LH
*2 Airbag ECU Assembly
*3 Wire Harness
*a Front view of wire harness connector
(to Front Airbag Sensor LH)


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

Standard Resistance:
Tester Connection Condition Specified Condition
A7-2 (+SL) - Body ground Always 1 MΩ or higher
A7-1 (-SL) - Body ground Always 1 MΩ or higher



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (SHORT TO B+)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (SHORT TO B+)
a.
C465727C01
0.833,2.167 1.177,2.396 0.344,0.229 1.552,2.667 1.865,2.26 true 2.438,2.635 2.073,2.25 true 1.646,0.74 1.646,0.365 1.646,0.365 1.479,0.365 false 0.698,0.729 0.969,0.938 0.271,0.208 10 false *1 2.542,0.719 2.844,1.01 0.302,0.292 10 false *2 1.313,0.281 1.573,0.448 0.26,0.167 10 false *3 0.667,1.771 1,2 0.333,0.229 10 false *a 2.188,0.719 2.365,0.927 0.177,0.208 10 false A 1.885,0.719 2.083,0.927 0.198,0.208 10 false B 1.292,0.719 1.5,0.927 0.208,0.208 10 false C 0.99,0.719 1.219,0.927 0.229,0.208 10 false D 0.917,2.188 1.188,2.365 0.271,0.177 10 false A7 2.375,2.677 2.813,2.844 0.438,0.167 10 false +SL 1.385,2.698 1.854,2.948 0.469,0.25 10 false -SL
*1 Front Airbag Sensor LH
*2 Airbag ECU Assembly
*3 Wire Harness
*a Front view of wire harness connector
(to Front Airbag Sensor LH)


Connect the cable to the negative (-) auxiliary 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 Switch Condition Specified Condition
A7-2 (+SL) - Body ground Ignition switch ON Below 1 V
A7-1 (-SL) - Body ground Ignition switch ON Below 1 V


Result:
Proceed to
OK
NG



d.

Turn the ignition switch off.


e.

Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.




OK

6.CHECK HARNESS AND CONNECTOR (OPEN)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

6.CHECK HARNESS AND CONNECTOR (OPEN)
a.
C465728C01
0.865,0.802 1.219,1.021 0.354,0.219 0.708,3.74 1.063,3.958 0.354,0.219 1.854,1.875 1.854,1.771 false 1.5,1.74 1.802,1.365 true 2.198,1.74 1.896,1.365 true 1.479,4.219 1.802,3.813 true 2.323,4.219 1.99,3.813 true 1.656,2.927 1.656,2.708 false 0.688,2.573 0.948,2.813 0.26,0.24 10 false *1 2.531,2.583 2.906,3.031 0.375,0.448 10 false *2 1.792,1.875 2.094,2.042 0.302,0.167 10 false *4 0.677,0.188 1,0.5 0.323,0.313 10 false *b 0.677,3.229 0.927,3.49 0.25,0.26 10 false *a 2.188,2.573 2.323,2.781 0.135,0.208 10 false A 1.885,2.573 2.021,2.771 0.135,0.198 10 false B 1.292,2.573 1.427,2.771 0.135,0.198 10 false C 0.99,2.573 1.115,2.75 0.125,0.177 10 false D 0.906,0.833 1.219,1.021 0.313,0.188 10 false I47 1.302,1.75 1.656,2 0.354,0.25 10 false +SL 2.167,1.75 2.542,1.99 0.375,0.24 10 false -SL 0.74,3.771 1.031,3.948 0.292,0.177 10 false A7 2.281,4.24 2.698,4.469 0.417,0.229 10 false +SL 1.365,4.25 1.781,4.479 0.417,0.229 10 false -SL 1.604,2.938 1.938,3.125 0.333,0.188 10 false *3
*1 Front Airbag Sensor LH
*2 Airbag ECU Assembly
*3 Wire Harness
*4 Service Wire
*a Front view of wire harness connector
(to Front Airbag Sensor LH)
*b Front view of wire harness connector
(to Airbag ECU Assembly)


Using a service wire, connect terminals 30 (+SL) and 31 (-SL) of connector B.

NOTICE:

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



b.

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

Standard Resistance:
Tester Connection Condition Specified Condition
A7-2 (+SL) - A7-1 (-SL) Always Below 1 Ω


Result:
Proceed to
OK
NG



c.

Disconnect the service wire from connector B.



OK

7.CLEAR DTC

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CLEAR DTC
a.
C442043C01
2.094,1 2.219,1.188 0.125,0.188 10 false A 1.938,1 2.083,1.271 0.146,0.271 10 false B 1.083,1.01 1.219,1.198 0.135,0.188 10 false C 0.927,1.01 1.042,1.229 0.115,0.219 10 false D 0.563,1.021 0.833,1.271 0.271,0.25 10 false *1 2.542,1.031 2.906,1.292 0.365,0.26 10 false *2
*1 Front Airbag Sensor RH
*2 Airbag ECU Assembly


Connect the connector to the airbag ECU assembly.


b.

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


c.

Connect the cable to the negative (-) auxiliary 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 444

f.

Turn the ignition switch off.


Result:
Proceed to
NEXT



NEXT

8.CHECK FRONT AIRBAG SENSOR LH
8.CHECK FRONT AIRBAG SENSOR LH
a.

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


b.

Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes
50001 444
Result:
Result Proceed to
B009083 is output A
B009583 is output B
B009083 and B009583 are not output C


HINT:

Codes other than DTCs B009083 and B009583 may be output at this time, but they are not related to this check.



c.

Turn the ignition switch off.


d.

Disconnect the cable from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.



e.

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



A

REPLACE AIRBAG ECU ASSEMBLY

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


B

REPLACE FRONT AIRBAG SENSOR LH

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


C

USE SIMULATION METHOD TO CHECK

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