Nissan Murano: Srs Air Bag Control System :: Dtc/circuit Diagnosis / B0001 Driver Air Bag Module
DTC DETECTION LOGIC
| DTC No. |
CONSULT screen items (Trouble diagnosis content) | DTC detecting condition | |
|---|---|---|---|
| B0001-1A |
DRIVER AIRBAG MODULE [SHORT] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
| B0001-13 |
DRIVER AIRBAG MODULE [OPEN] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
| B0001-12 |
DRIVER AIRBAG MODULE [VB-SHORT] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
| B0001-11 |
DRIVER AIRBAG MODULE [GND-SHORT] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
| B0001-09 |
DRIVER AIRBAG MODULE [SHORT] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
| B0001-00 |
DRIVER AIRBAG MODULE [SHORT] |
Diagnosis condition | When ignition switch is ON. |
| Signal (terminal) | Driver air bag module circuit (DR1) (terminals 32 and 33) | ||
| Threshold | — | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
[OPEN]
-
Connection malfunction or open circuit of harness and connector
-
Internal malfunction of driver air bag module
-
Internal malfunction of air bag diagnosis sensor unit
[VB-SHORT]
-
Connection malfunction or short circuit to power supply of harness and connector
-
Internal malfunction of driver air bag module
-
Internal malfunction of air bag diagnosis sensor unit
[GND-SHORT]
-
Connection malfunction or short circuit to ground of harness and connector
-
Internal malfunction of driver air bag module
-
Internal malfunction of air bag diagnosis sensor unit
[SHORT]
-
Connection malfunction or short circuit of harness and connector
-
Internal malfunction of driver air bag module
-
Internal malfunction of air bag diagnosis sensor unit
FAIL-SAFE
—
DTC CONFIRMATION PROCEDURE
CHECK SELF DIAGNOSTIC RESULT
CONSULT
-
Ignition switch ON.
-
Select "Self Diagnostic Result" mode of "AIR BAG".
-
Check for DTC.
Is the DTC detected?
YES>>(Current DTC) Refer to DTC Diagnosis Procedure.
YES>>(Past DTC) GO TO 2.
NO>>Inspection End.
ERASE SELF DIAGNOSTIC RESULT
CONSULT
Erase the DTC.
Can the DTC be erased?
YES>>Inspection End.
NO>>Refer to DTC Diagnosis Procedure.
DTC CONFIRMATION PROCEDURE
CHECK SELF DIAGNOSTIC RESULT
CONSULT
-
Ignition switch ON.
-
Check the air bag warning lamp status. Refer to SRS Operation Check.
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES>>Refer to DTC Diagnosis Procedure.
NO>>Inspection End.
WARNING:
-
Before servicing, 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.
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.
CONFIRM DTC
CONSULT
-
Reconnect all harness connectors.
-
Ignition switch ON.
-
Select "Self Diagnostic Result" mode of "AIR BAG".
-
Check for DTC.
Is DTC still current?
YES>>GO TO 3.
NO>>Refer to Intermittent Incident.
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.
CHECK SPIRAL CABLE CIRCUIT
-
Ignition switch OFF.
-
Disconnect driver air bag module harness connector and combination switch (spiral cable) harness connector.
-
Check continuity between driver air bag module harness connector and combination switch (spiral cable) harness connector.
Driver air bag module Combination switch (spiral cable) Continuity Connector Terminal Connector Terminal M76 29 M41 22 Yes 30 24 -
Check continuity between driver air bag module harness connector and ground.
Driver air bag module — Continuity Connector Terminal M76 29 Ground No 30
Is the inspection result normal?
YES>>GO TO 5.
NO>>Replace the spiral cable. Refer to Removal and Installation.
CONFIRM DTC
CONSULT
-
Reconnect all harness connectors.
-
Ignition switch ON.
-
Select "Self Diagnostic Result" mode of "AIR BAG".
-
Check for DTC.
Is DTC still current?
YES>>GO TO 6.
NO>>Refer to Intermittent Incident.
DRIVER AIR BAG MODULE
CONSULT
-
Replace the driver air bag module. Refer to Removal and Installation.
-
Ignition switch ON.
-
Select "Self Diagnostic Result" mode of "AIR BAG".
-
Check for DTC.
Is DTC still current?
YES>>GO TO 7.
NO>>Clear DTC. Inspection End.
AIR BAG DIAGNOSIS SENSOR UNIT
CONSULT
-
Replace the air bag diagnosis sensor unit. Refer to Removal and Installation.
-
Ignition switch ON.
-
Select "Self Diagnostic Result" mode of "AIR BAG".
-
Check for DTC.
Is DTC still current?
YES>>GO TO 8.
NO>>Clear DTC. Inspection End.
RELATED HARNESS
Replace the related harness.
>>
Inspection End.
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DTC Description
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DTC Description
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CONSULT screen items
(Trouble diagnosis content) DTC detecting condition
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Diagnosis condition
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