Nissan Murano Z51. Manual — part 1376
SRC-274
< DTC/CIRCUIT DIAGNOSIS >
[FOR MEXICO]
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
B1138, B1139, B1140, B1141, B1142, B1143 DIAGNOSIS SENSOR UNIT
Description
INFOID:0000000005513832
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, front side air bag, side curtain air bag, 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:0000000005513833
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.
INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.
CHECK SELF-DIAG RESULT
Check the screen of CONSULT-III.
Is malfunctioning part detected?
YES
>> Refer to
SRC-275, "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.
INSPECTION START
Turn ignition switch ON.
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-275
< DTC/CIRCUIT DIAGNOSIS >
[FOR MEXICO]
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
>> GO TO 2.
2.
CHECK AIR BAG WARNING LAMP
Check the air bag warning lamp status.
Is malfunctioning part detected?
YES
>> Refer to warning lamp flash code chart.
NO
>> INSPECTION END.
Diagnosis Procedure
INFOID:0000000005513834
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.
DIAGNOSTIC PROCEDURE
1.
CHECK HARNESS CONNECTOR
Check the connection of harness connector.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness connectors.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace wiring harness.
3.
CHECK AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit.
2.
Check the screen of CONSULT-III.
Is the inspection result normal?
YES
>> INSPECTION END.
NO
>> Check the intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
SRC-276
< DTC/CIRCUIT DIAGNOSIS >
[FOR MEXICO]
B1144 DIAGNOSIS SENSOR UNIT
B1144 DIAGNOSIS SENSOR UNIT
Description
INFOID:0000000005513835
Checks the entire SRS and displays the malfunction either by illuminating or blinking the air bag warning lamp
on the combination meter. Malfunctioning part can be detected by on board self-diagnosis system and CON-
SULT-III.
OPERATION
It detects a shock that exceeds a specified level and monitors whether the driver and passenger air bags, front
side air bag, side curtain air bag and pre-tensioner seat belts operate normally.
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:0000000005513836
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT-III
1.
Turn ignition switch ON.
2.
Perform “AIR BAG” Self Diagnostic Result.
Without CONSULT-III
1.
Turn ignition switch ON.
2.
Check the air bag warning lamp status. Refer to
SRC-186, "Diagnosis Description"
.
NOTE:
SRS does not enter diagnosis mode if no malfunction is detected in user mode.
Is malfunctioning part detected?
YES
>> Refer to
SRC-276, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000005513837
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes. (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 connectors.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
B1144
Diagnosis sensor unit
Air bag diagnosis sensor unit is mal-
functioning or out of the specification
• Malfunction in air bag diagnosis sen-
sor unit
• Configuration in air bag diagnosis
sensor unit does not match the vehi-
cles specification
B1144 DIAGNOSIS SENSOR UNIT
SRC-277
< DTC/CIRCUIT DIAGNOSIS >
[FOR MEXICO]
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
NO
>> Replace wiring harness.
3.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
2.
Perform DTC confirmation procedure. Refer to
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
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