Nissan Altima 2007-2012 Service Manual: B1049 – B1052, B1054 – B1057 driver airbag module

Description

DTC B1049 – B1052, B1054 – B1057 DRIVER AIRBAG MODULE

The driver air bag module is dual stage and wired to the air bag diagnosis sensor unit through the spiral cable.

The air bag diagnosis sensor unit will monitor for opens and shorts in detected lines to the driver air bag module including the spiral cable.

PART LOCATION

Refer to SRC-7, "SRS Component Parts Location".

DTC Logic

DTC DETECTION LOGIC

With CONSULT-lll

Without CONSULT-lll

DTC CONFIRMATION PROCEDURE (With CONSULT-lll)

1.INSPECTION START

Turn ignition switch ON.

>> GO TO 2.

2.CHECK SELF-DIAG RESULT

Check for the DTC on CONSULT-lll.

Is the DTC detected? YES >> Refer to SRC-17, "Diagnosis Procedure (Component Diagnosis)".

NO >> Inspection End.

DTC CONFIRMATION PROCEDURE (Without CONSULT-lll)

NOTE: SRS will not enter diagnosis mode if no malfunction is detected in user mode.

1.IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 2

2.IGNITION SWITCH

After air bag warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.

>> GO TO 3

3.WAIT TIME

Wait more than 3 seconds.

>> GO TO 4

4.REPEAT STEPS

Repeat steps 1 to 3 twice.

>> GO TO 5

5.IGNITION SWITCH

Turn ignition switch ON.

>> GO TO 6

6.DIAGNOSTIC MODE

SRS system is now in diagnostic mode and AIR BAG warning lamp flashes. Refer to SRC-70, "Trouble Diagnosis without CONSULT-III".

>> END

Diagnosis Procedure (Component Diagnosis)

Recheck SRS after each replacement.

1.HARNESS CONNECTOR

Is there any visible damage to the connector? YES or NO

YES >> Replace the harness.

NO >> GO TO 2

2.WIRING HARNESS

Is there any visible damage to the harness? YES or NO

YES >> Replace the harness.

NO >> GO TO 3

3.DRIVER AIR BAG MODULE

Replace the driver air bag module. Refer to SR-5, "Removal and Installation".

>> GO TO 4

4.SPIRAL CABLE

Replace the spiral cable. Refer to SR-8, "Removal and Installation".

>> GO TO 5

5.AIR BAG DIAGNOSIS SENSOR UNIT

Replace the air bag diagnosis sensor unit. Refer to SR-17, "Removal and Installation".

>> GO TO 6

6.RELATED HARNESS

Replace the related harness.

>> END

    B1065 – B1068, B1070 – B1073 passenger airbag module
    Description DTC B1065 – B1068, B1070 – B1073 PASSENGER AIR BAG MODULE The passenger air bag module is dual stage and wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor u ...

    Other materials:

    P1421 Cold start control
    Description ECM controls ignition timing and engine idle speed when engine is started with prewarming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. DTC Logic DTC DETECTION LOGIC NOTE: If DTC P1421 is displayed wit ...

    Power steering fluid and lines
    Inspection FLUID LEVEL • Check fluid level with engine stopped. • Make sure that fluid level is between MIN and MAX. • Fluid levels at HOT (A) and COLD (B) are different. Do not confuse them. CAUTION: • The fluid level should not exceed the MAX line. Excessive fluid will caus ...

    Daytime running light system
    System Diagram System Description The headlamp system for Canada vehicles is equipped with a daytime light control unit that activates the high beam headlamps at approximately half illumination whenever the engine is running. If the parking brake is applied before the engine is started the ...