Infiniti EX35. Manual — part 1369
SRC-102
< COMPONENT DIAGNOSIS >
B1137 SIDE MODULE LH
B1137 SIDE MODULE LH
Description
INFOID:0000000003595973
DTC B1137 [SHORT] SIDE MODULE LH
For front LH side air bag module, crash is judged by main “G” sensor output signal (left side:LH satellite sen-
sor, right side:RH satellite sensor) and Safing algorithm (in air bag diagnosis sensor unit).
OPERATION
In the case of a collision whose acceleration exceeds the specified level, the ignition materials are ignited by
electric ignition system. The system burns and introduces the chemical reaction of gas generating materials to
generate hot gases that flow into the air bag through a filter and expand the bag.
STRUCTURE
Front LH side air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Front LH side air bag module is installed on the side of front seatback with fixed nuts.
DTC Logic
INFOID:0000000003595974
DTC DETECTION LOGIC
With CONSULT-III
DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
DTC CONFIRMATION PROCEDURE (WITH CONSULT-III)
1.
CHECK SELF-DIAG RESULT
1.
Turn ignition switch ON.
2.
Check the screen of CONSULT-III.
Is malfunctioning part detected?
YES
>> Refer to
SRC-102, "Diagnosis Procedure"
NO
>> INSPECTION END
DTC CONFIRMATION PROCEDURE (WITHOUT CONSULT-III)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
CHECK AIR BAG WARNING LAMP
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status.
Is malfunctioning part detected?
YES
>> Refer to warning lamp flash code chart. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003595975
WITH CONSULT-III
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
• Do not use un specified tester or other measuring device.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1137
SIDE MODULE LH
[SHORT]
Front LH side air bag module circuit are
shorted to each other
• Disconnection of wiring harness and
short
• Internal breakdown in front LH side
air bag module
• Internal breakdown in air bag diag-
nosis sensor unit
B1137 SIDE MODULE LH
SRC-103
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
DIAGNOSTIC PROCEDURE
1.
CHECK HARNESS CONNECTOR
Check the connection of harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace harness connector.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK FRONT SIDE AIR BAG MODULE
1.
Replace front LH side air bag module. Refer to
2.
Check “Self diagnosis result” with CONSULT-III.
3.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
2.
Check “Self diagnosis result” with CONSULT-III.
3.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-104
< COMPONENT DIAGNOSIS >
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
Description
INFOID:0000000003591889
DTC B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
Detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air
bag warning lamp in the combination meter. Malfunctioning part can be detected by on board self-diagnosis
system and electro-diagnosis tester CONSULT-III.
OPERATION
It detects a shock that exceeds specified level and monitors such systems as the driver and passenger air
bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate
properly.
STRUCTURE
It contains the “G” sensors for both frontal and side collisions and spare battery function in case of main bat-
tery damage in collision.
INSTALLATION
Air bag diagnosis sensor unit is installed under the center console with fixed bolts.
DTC Logic
INFOID:0000000003591890
DTC DETECTION LOGIC
With CONSULT-III
DTC No. Index (“SELF-DIAG [CURRENT]”), (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
DTC CONFIRMATION PROCEDURE (WITH CONSULT-III)
1.
CHECK SELF-DIAG RESULT
1.
Turn ignition switch ON.
2.
Check the screen of CONSULT-III.
Is malfunctioning part detected?
YES
>> Refer to
SRC-104, "Diagnosis Procedure"
NO
>> INSPECTION END
DTC CONFIRMATION PROCEDURE (WITHOUT CONSULT-III)
NOTE:
• SRS will not enter diagnosis mode if no malfunction is detected in user mode.
1.
CHECK AIR BAG WARNING LAMP
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status.
Is malfunctioning part detected?
YES
>> Refer to warning lamp flash code chart. Refer to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000003591891
WITH CONSULT-III
WARNING:
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1138
B1139
B1140
B1141
B1142
B1143
CONTROL UNIT
Air bag diagnosis sensor unit is out of
order or mis-match
• Internal breakdown in air bag diag-
nosis sensor unit
• Mis-match between specification on
vehicle and configuration in air bag
diagnosis sensor unit
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
SRC-105
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
• Do not use unspecified tester or other measuring device.
DIAGNOSTIC PROCEDURE
1.
CHECK HARNESS CONNECTOR
Check the connection of harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace harness connectors.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace wiring harness.
3.
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
2.
Check “Self diagnostic result” with CONSULT-III.
3.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
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