Nissan X-Trail 32. Manual — part 1975
SRC-68
< DTC/CIRCUIT DIAGNOSIS >
B1406, B1407, B1408, B1409, B1410 AIR BAG DIAGNOSIS SENSOR UNIT
B1406, B1407, B1408, B1409, B1410 AIR BAG DIAGNOSIS SENSOR UNIT
DTC Description
INFOID:0000000010688491
DTC DETECTION LOGIC
POSSIBLE CAUSE
Malfunction in air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.
Is malfunctioning part detected?
YES
>> Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010688492
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 for disconnection, looseness or damage.
Is the inspection result normal?
YES
>> GO TO 2.
NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace malfunctioning harness and connector.
3.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-38, "Removal and Installation"
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B1406–00
CONTROL UNIT
(airbag control unit internal trouble, Energy
Reserver)
Air bag diagnosis sensor unit is malfunctioning
B1407–00
CONTROL UNIT
(airbag control unit internal trouble, driver IC1)
B1408–00
CONTROL UNIT
(airbag control unit internal trouble, driver IC2)
B1409–00
CONTROL UNIT
(airbag control unit internal trouble, driver IC3)
B1410–00
CONTROL UNIT
(airbag control unit internal trouble, Power IC)
B1406, B1407, B1408, B1409, B1410 AIR BAG DIAGNOSIS SENSOR UNIT
SRC-69
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
SRC-70
< DTC/CIRCUIT DIAGNOSIS >
B1411, B1412, B1413, B1414, B1415 AIR BAG DIAGNOSIS SENSOR UNIT
B1411, B1412, B1413, B1414, B1415 AIR BAG DIAGNOSIS SENSOR UNIT
DTC Description
INFOID:0000000010688493
DTC DETECTION LOGIC
POSSIBLE CAUSE
Malfunction in air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
1.
CHECK SELF-DIAG RESULT
With CONSULT
1.
Turn ignition switch ON.
2.
Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT.
Is malfunctioning part detected?
YES
>> Refer to
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010688494
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 for disconnection, looseness or damage.
Is the inspection result normal?
YES
>> GO TO 2.
NO–1 >> Damage: Replace malfunctioning harness and connector.
NO–2 >> Disconnection or looseness: Securely lock the connector.
2.
CHECK WIRING HARNESS
Check the wiring harness externals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace malfunctioning harness and connector.
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B1411–00
CONTROL UNIT
(airbag control unit internal trouble, SUB IC)
Air bag diagnosis sensor unit is malfunctioning
B1412–00
CONTROL UNIT
(airbag control unit internal trouble, communi-
cation IC1)
B1413–00
CONTROL UNIT
(airbag control unit internal trouble, communi-
cation IC2)
B1414–00
CONTROL UNIT
[airbag control unit internal trouble, Main mi-
cro controller (CPU)]
B1415–00
CONTROL UNIT
[airbag control unit internal trouble, Sub mi-
crocontroller (CPU)]
B1411, B1412, B1413, B1414, B1415 AIR BAG DIAGNOSIS SENSOR UNIT
SRC-71
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
3.
REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
1.
Replace air bag diagnosis sensor unit. Refer to
SR-38, "Removal and Installation"
2.
Perform DTC confirmation procedure. Refer to
.
Is DTC detected?
YES
>> GO TO 1.
NO
>> INSPECTION END
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