Nissan Juke Service and Repair Manual : B1049, B1054 driver air bag module

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE


DTC CONFIRMATION PROCEDURE

1.CHECK SELF-DIAG RESULT

1. Turn ignition switch ON.With CONSULT-III


1. Turn ignition switch ON.

2. Perform “Self Diagnostic Result” mode of “AIR BAG” using CONSULT-III.

1. Turn ignition switch ON.Without CONSULT-III


1. Turn ignition switch ON.

2. Check the air bag warning lamp status. Refer to SRC-12, "On Board Diagnosis Function".

NOTE

:
SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

Is malfunctioning part detected? YES >> Refer to SRC-45, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

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.CHECK HARNESS CONNECTOR

Check the harness connector.

Is the inspection result normal? YES >> GO TO 2.

NO >> Replace harness connector.

2.CHECK WIRING HARNESS

Check the wiring harness externals.

Is the inspection result normal? YES >> GO TO 3.

NO >> Replace wiring harness.

3.CHECK SPIRAL CABLE CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect driver air bag module harness connector and combination switch (spiral cable) harness connector.

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


4. Check continuity between driver air bag module harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 4.

NO >> Replace combination switch (spiral cable). Refer to SR-16, "Removal and Installation".

4.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT

1. Replace air bag diagnosis sensor unit. Refer to SR-30, "Removal and Installation".

2. Perform DTC confirmation procedure. Refer to SRC-45, "DTC Logic".

Is DTC detected? YES >> GO TO 5.

NO >> INSPECTION END

5.REPLACE DRIVER AIR BAG MODULE

1. Replace driver air bag module. Refer to SR-13, "Removal and Installation".

2. Perform DTC confirmation procedure. Refer to SRC-45, "DTC Logic".

Is DTC detected? YES >> GO TO 1.

NO >> INSPECTION END

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