Nissan Altima 2007-2012 Service Manual: A-BAG branch line circuit

Diagnosis Procedure

1.CHECK AIR BAG DIAGNOSIS SENSOR UNIT

Check the air bag diagnosis sensor unit. Refer to SRC-3, "Work Flow".

Is the inspection result normal? YES >> Replace the main harness.

NO >> Replace parts whose air bag system has a malfunction.

    ECM branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the following terminals and co ...

    BCM branch line circuit
    Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors ...

    Other materials:

    B2609 steering status
    Description There are 2 switches in the electronic steering column lock (steering lock/unlock switch 1 and 2). BCM compares those two switches conditions to judge the present steering status. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2609 is displayed with DTC U1000, first perform the ...

    B2109 steering lock relay
    Description The steering lock relay ON signal is transmitted to IPDM E/R by BCM via CAN communication. IPDM E/R turns the steering lock relay ON and transmits the release of the steering to BCM. DTC Logic DTC DETECTION LOGIC NOTE: • If DTC B2109 is displayed with DTC U1000, first perf ...

    Precaution
    Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along with a front seat belt, helps to reduce the risk or severity of injury to the dr ...