Nissan Altima 2007-2012 Service Manual: Precaution

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 driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Manual.

WARNING: • To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

Necessary for Steering Wheel Rotation After Battery Disconnect

NOTE: • Before removing and installing any control units, first turn the push-button ignition switch to the LOCK position, then disconnect both battery cables.

• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both battery cables.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.

This vehicle is equipped with a push-button ignition switch and a steering lock unit.

If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.

If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure below before starting the repair operation.

OPERATION PROCEDURE

1. Connect both battery cables.

NOTE: Supply power using jumper cables if battery is discharged.

2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.

(At this time, the steering lock will be released.) 3. Disconnect both battery cables. The steering lock will remain released with both battery cables disconnected and the steering wheel can be turned.

4. Perform the necessary repair operation.

5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering wheel will lock when the push-button ignition switch is turned to LOCK position.) 6. Perform self-diagnosis check of all control units using CONSULT-III.

Precautions

• After removing and installing any opening/closing parts, make sure to perform all adjustments for proper operation.

• Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.

• When removing or disassembling any part, be careful not to damage or deform it. Protect parts which may get in the way with cloth.

• When removing parts with a screw driver or other tool, protect parts by wrapping them with vinyl or tape.

• Keep removed parts protected with cloth.

• If a clip is deformed or damaged, replace it.

• If a non reuseable part is removed, replace it with a new one.

• Tighten bolts and nuts firmly to the specified torque.

• After re-assembly has been completed, make sure each part functions correctly.

• Remove stains in the following manner:

    Symptom diagnosis
    SQUEAK AND RATTLE TROUBLE DIAGNOSES Work Flow CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diagnostic Worksheet ...

    Preparatio
    Special Service Tools The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here. Commercial Service Tools ...

    Other materials:

    B1023 passenger air bag off indicator
    Description DTC B1023 FRONT PASSENGER AIR BAG OFF INDICATOR The front passenger air bag off indicator is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit monitors the front passenger air bag off indicator and circuit for failures. PART LOCATION Refer to SRC-7, & ...

    Symptom diagnosis
    SQUEAK AND RATTLE TROUBLE DIAGNOSES Work Flow CUSTOMER INTERVIEW Interview the customer if possible, to determine the conditions thatexist when the noise occurs. Use the Diagnostic Worksheet during the interviewto document the facts and conditions when the noise occurs and any customer's ...

    Intake manifold
    Removal and Installation 1. Intake manifold 2. Gasket A. Follow installation procedure REMOVAL WARNING: To avoid the danger of being scalded, never drain the coolant when the engine is hot. 1. Remove the engine cover with power tool. 2. Release the fuel pressure. Refer to EC-1579, &quo ...