Infiniti QX56 (Z62). Manual — part 1233
SRC-136
< DTC/CIRCUIT DIAGNOSIS >
B1148 CURTAIN AIR BAG MODULE RH
B1148 CURTAIN AIR BAG MODULE RH
DTC Logic
INFOID:0000000006220078
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT-III
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status. Refer to
SRC-14, "On Board Diagnosis Function"
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES
>> Refer to
SRC-136, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006220079
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.
CHECK HARNESS CONNECTOR
Check the 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.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-26, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
REPLACE REAR CURTAIN AIR BAG MODULE
1.
Replace rear curtain air bag module RH. Refer to
SR-19, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 1.
DTC
Display contents of
CONSULT-III
DTC detecting condition
Possible cause
B1148
CURTAIN MODULE RH
[SHORT]
Rear curtain air bag module RH circuits are
shorted to each other
• Disconnection of wiring harness and short
• Malfunction in rear curtain air bag module RH
• Malfunction in air bag diagnosis sensor unit
B1148 CURTAIN AIR BAG MODULE RH
SRC-137
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
NO
>> INSPECTION END
SRC-138
< DTC/CIRCUIT DIAGNOSIS >
B1150 CURTAIN AIR BAG MODULE LH
B1150 CURTAIN AIR BAG MODULE LH
DTC Logic
INFOID:0000000006220080
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT-III
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.
Without CONSULT-III
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status. Refer to
SRC-14, "On Board Diagnosis Function"
NOTE:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.
Is malfunctioning part detected?
YES
>> Refer to
SRC-138, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000006220081
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait at least 3
minutes or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.
CHECK HARNESS CONNECTOR
Check the 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.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-26, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
REPLACE REAR CURTAIN AIR BAG MODULE
1.
Replace rear curtain air bag module LH. Refer to
SR-19, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 1.
DTC
Display contents of
CONSULT-III
DTC detecting condition
Possible cause
B1150
CURTAIN MODULE LH
[OPEN]
Rear curtain air bag module LH circuit is
open
• Disconnection of wiring harness and open
• Malfunction in rear curtain air bag module LH
• Malfunction in air bag diagnosis sensor unit
B1150 CURTAIN AIR BAG MODULE LH
SRC-139
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
NO
>> INSPECTION END
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