Infiniti EX35. Manual — part 1365
SRC-86
< COMPONENT DIAGNOSIS >
B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT
B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT
Description
INFOID:0000000003595949
DTC B1122, B1123, B1124, B1125, B1126, B1127 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, front side air bag, side curtain air bag and pre-tensioner seat belts 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:0000000003595950
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
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:0000000003595951
WITH CONSULT-III
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (To discharge backup capacitor.)
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1122
B1123
B1124
B1125
B1126
B1127
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
B1122, B1123, B1124, B1125, B1126, B1127 DIAGNOSIS SENSOR UNIT
SRC-87
< COMPONENT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
• 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 diagnosis result” with CONSULT-III.
3.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-88
< COMPONENT DIAGNOSIS >
B1129 SIDE MODULE RH
B1129 SIDE MODULE RH
Description
INFOID:0000000003595952
DTC B1129 [OPEN] SIDE MODULE RH
For front RH 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 RH side air bag module mainly consists of air bag and inflator which inflates air bag.
INSTALLATION
Front RH side air bag module is installed on the side of front seat back with fixed nuts.
DTC Logic
INFOID:0000000003595953
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
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:0000000003595954
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 unspecified tester or other measuring device.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1129
SIDE MODULE RH
[OPEN]
Front RH side air bag module circuit is
open
• Disconnection of wiring harness and
open
• Internal breakdown in front RH side
air bag module
• Internal breakdown in air bag diag-
nosis sensor unit
B1129 SIDE MODULE RH
SRC-89
< 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 RH 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
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