Nissan Sentra. Instruction — part 815
B1431, B1433 SEAT BELT PRE-TENSIONER RH
SRC-95
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
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-96
< DTC/CIRCUIT DIAGNOSIS >
B142A IGNITION VOLTAGE
B142A IGNITION VOLTAGE
Description
INFOID:0000000009758006
DTC B142A IGNITION VOLTAGE
Ignition voltage is supplied to the air bag diagnosis sensor unit when the ignition is in the ON position. The air
bag diagnosis sensor unit will monitor for low or high ignition voltage.
PART LOCATION
SRC-5, "Component Parts Location"
.
DTC Logic
INFOID:0000000009758007
DTC DETECTION LOGIC
With CONSULT
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-17, "Trouble Diagnosis without CONSULT"
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:0000000009758008
1.
HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
• Visible damage to connector or terminal
• Loose terminal
• Poor connection
CONSULT name
DTC
DTC detecting condition
Repair order
IGN VOLTAGE
[LOW]
B142A
Ignition voltage low at air bag diagnosis sensor unit. Refer to
IGN VOLTAGE
[HIGH]
Ignition voltage high at air bag diagnosis sensor unit.
B142A IGNITION VOLTAGE
SRC-97
< DTC/CIRCUIT DIAGNOSIS >
C
D
E
F
G
I
J
K
L
M
A
B
SRC
N
O
P
NOTE:
All harness connectors should be inspected from the air bag diagnosis 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-39, "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?
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-39, "Intermittent Incident"
.
5.
AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to
SR-28, "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.
RELATED HARNESS
Replace the related harness.
>> END
SRC-98
< DTC/CIRCUIT DIAGNOSIS >
B142X COLLISION DETECTION
B142X COLLISION DETECTION
Description
INFOID:0000000009758009
DTC B142X COLLISION DETECTION
The air bag diagnosis sensor unit will set this DTC if it has detected a collision which has resulted in a deploy-
ment of one or more air bags or pre-tensioners. If this DTC is detected after a SRS repair, the air bag diagno-
sis sensor unit has not yet been replaced. This DTC can not be erased.
PART LOCATION
SRC-5, "Component Parts Location"
.
DTC Logic
INFOID:0000000009758010
DTC DETECTION LOGIC
With CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.
INSPECTION START
Turn ignition switch ON.
>> GO TO 2.
2.
CHECK SELF-DIAG RESULT
Check for the DTC on CONSULT.
Is the DTC detected?
YES
>> Refer to
NO
>> Inspection End.
Diagnosis Procedure
INFOID:0000000009758011
or
SR-7, "For Side and Rollover Collision"
.
CONSULT name
DTC
DTC detecting condition
Repair order
FRONTAL COLLISION DETECTION
B1421
Frontal collision detected. Driver and/or
front passenger air bag modules are de-
ployed.
SIDE COLLISION DETECTION
B1422
Side collision detected. Curtain air bag
module and seat belt pre-tensioner are
deployed.
.
REAR COLLISION DETECTION
B1425
Rear collision has been detected.
Replace air bag diagnosis unit. Refer to
SR-28, "Removal and Installation"
AIRBAG DISPOSAL COMPLETION
B1426
Collision has been detected. Air bag di-
agnosis sensor unit has not yet been re-
placed following repairs.
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