Nissan Leaf. Manual — part 1124
B1430, B1432 SEAT BELT PRE-TENSIONER LH
SRC-97
< DTC/CIRCUIT DIAGNOSIS >
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1. Replace the seat belt pre-tensioner LH. Refer to
SR-40, "Removal and Installation"
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 7.
NO
>> Clear DTC. Inspection End.
7.
RELATED HARNESS
Replace the related harness.
>> END
SRC-98
< DTC/CIRCUIT DIAGNOSIS >
B1431 SEAT BELT PRE-TENSIONER
B1431 SEAT BELT PRE-TENSIONER
Description
INFOID:0000000010877019
DTC B1431 SEAT BELT PRE-TENSIONER RH
The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit
will monitor for opens and shorts in detected lines to the seat belt pre-tensioner RH.
PART LOCATION
SRC-6, "Component Parts Location"
.
DTC Description
INFOID:0000000010877020
DTC DETECTION LOGIC
POSSIBLE CAUSE
[B1431–09, B1431–1A]
• Connection malfunction or short circuit of harness and connector
• Internal malfunction of seat belt pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit
[B1431–11]
• Connection malfunction or short circuit to ground of harness and connector
• Internal malfunction of seat belt pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit
[B1431–12]
• Connection malfunction or short circuit to power supply of harness and connector
• Internal malfunction of seat belt pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit
[B1431–13]
• Connection malfunction or open circuit of harness and connector
• Internal malfunction of seat belt pre-tensioner RH
• Internal malfunction of air bag diagnosis sensor unit
FAIL-SAFE
—
DTC
CONSULT screen items
(Trouble diagnosis content)
DTC detecting condition
B1431–09
PRE-TEN FRONT RH
[front seat belt pre-tensioner
squib right hand component
failures (cross connection)]
[SHORT]
Seat belt pre-tensioner RH circuits are shorted to each other
B1431–11
PRE-TEN FRONT RH
(front seat belt pre-tensioner
squib right hand circuit short
to GND)
[GND-SHORT]
Seat belt pre-tensioner RH circuit is shorted to ground
B1431–12
PRE-TEN FRONT RH
(front seat belt pre-tensioner
squib right hand circuit short
to battery)
[VB-SHORT]
Seat belt pre-tensioner RH circuit is shorted to power supply circuit
B1431–13
PRE-TEN FRONT RH
(front seat belt pre-tensioner
squib right hand circuit)
[OPEN]
Seat belt pre-tensioner RH circuit is open
B1431–1A
PRE-TEN FRONT RH
(front seat belt pre-tensioner
squib right hand circuit re-
sistance below threshold)
[SHORT]
Seat belt pre-tensioner RH circuits are shorted to each other
B1431 SEAT BELT PRE-TENSIONER
SRC-99
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
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A
B
SRC
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DTC CONFIRMATION PROCEDURE (With CONSULT)
1.
CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to
YES (Past DTC)>>GO TO 2.
NO
>> Inspection End.
2.
ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES
>> Inspection End.
NO
>> Refer to
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.
CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to
SRC-11, "On Board Diagnosis Function"
.
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000010877021
1.
HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
• Visible damage to connector or terminal
• Loose terminal
• Poor connection
NOTE:
All harness connectors should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform one of the following repairs:
• Visible damage: Replace the harness.
• Loose terminal: Secure the terminal.
• Poor connection: Secure the connection.
2.
CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 3.
NO
>> Refer to
GI-53, "Intermittent Incident"
.
3.
WIRING HARNESS
Check the wiring harness for visible damage.
NOTE:
The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
SRC-100
< DTC/CIRCUIT DIAGNOSIS >
B1431 SEAT BELT PRE-TENSIONER
YES
>> GO TO 4.
NO
>> Replace the harness.
4.
CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 5.
NO
>> Refer to
GI-53, "Intermittent Incident"
.
5.
AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to
SR-38, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 6.
NO
>> Clear DTC. Inspection End.
6.
SEAT BELT PRE-TENSIONER RH
1. Replace the seat belt pre-tensioner RH. Refer to
SR-40, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 7.
NO
>> Clear DTC. Inspection End.
7.
RELATED HARNESS
Replace the related harness.
>> END
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