Nissan Note E12. Manual — part 581
B1049 DRIVER AIRBAG MODULE
SRC-29
< DTC/CIRCUIT DIAGNOSIS >
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B1049 DRIVER AIRBAG MODULE
DTC Logic
INFOID:0000000009460188
DTC DETECTION LOGIC
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-9, "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:0000000009460189
WARNING:
• Before servicing, turn ignition switch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
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 unit to the end component (including
any in-line connectors).
Is the inspection result normal?
YES
>> GO TO 2.
DTC
Display contents of
CONSULT
DTC detecting condition
Repair order
B1049
DRIVER AIRBAG
MODULE
[OPEN]
Driver air bag module circuit is open
(including the spiral cable).
1.
Visually check the wiring harness connection.
2.
Replace the harness if it has visible damage.
3.
Inspect the spiral cable circuit.
4.
Replace the air bag diagnosis sensor unit.
5.
Replace the driver air bag module.
6.
Replace the related harness.
SRC-30
< DTC/CIRCUIT DIAGNOSIS >
B1049 DRIVER AIRBAG MODULE
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-41, "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.
CHECK SPIRAL CABLE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and combination switch (spiral cable) harness con-
nector.
3. Check continuity between driver air bag module harness connector and combination switch (spiral cable)
harness connector.
4. Check continuity between driver air bag module harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace combination switch (spiral cable). Refer to
SR-15, "Removal and Installation"
.
5.
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 6.
NO
>> Refer to
GI-41, "Intermittent Incident"
.
6.
AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to
SR-21, "Removal and Installation"
.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
Driver air bag module
Combination switch (spiral cable)
Continuity
Connector
Terminal
Connector
Terminal
M87
10
M31
28
Yes
11
30
Driver side air bag module
Ground
Continuity
Connector
Terminal
M87
10
No
11
B1049 DRIVER AIRBAG MODULE
SRC-31
< DTC/CIRCUIT DIAGNOSIS >
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YES
>> GO TO 7.
NO
>> Clear DTC. Inspection End.
7.
DRIVER AIR BAG MODULE
1. Replace the driver air bag module. Refer to
SR-12, "Removal and Installation"
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES
>> GO TO 8.
NO
>> Clear DTC. Inspection End.
8.
RELATED HARNESS
Replace the related harness.
>> END
SRC-32
< DTC/CIRCUIT DIAGNOSIS >
B1050 DRIVER AIRBAG MODULE
B1050 DRIVER AIRBAG MODULE
DTC Logic
INFOID:0000000009460190
DTC DETECTION LOGIC
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-9, "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:0000000009460191
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 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.
DTC
Display contents of
CONSULT
DTC detecting condition
Repair order
B1050
DRIVER AIRBAG
MODULE
[VB-SHORT]
Driver air bag module circuit is shorted to
power supply circuit (including the spiral
cable).
1.
Visually check the wiring harness connection.
2.
Replace the harness if it has visible damage.
3.
Inspect the spiral cable circuit.
4.
Replace the air bag diagnosis sensor unit.
5.
Replace the driver air bag module.
6.
Replace the related harness.
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