Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Altima 2000-2005 Approved Nissan Altima 2005 SRS
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H RESTRAINTS
A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SECTION SRS B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . DIAGNOSTIC PROCEDURE 4 (CONTINUED F
Precautions for Supplemental Restraint System FROM DIAGNOSTIC PROCEDURE 2) ............. 30 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DIAGNOSTIC PROCEDURE 5 .......................... 30 .
SIONER" ................................................................. 3
. Trouble diagnosis without CONSULT-II. ................ 36 . G
Precautions for SRS "AIR BAG" and "SEAT BELT DIAGNOSTIC PROCEDURE 6 .......................... 36 .
PRE-TENSIONER" Service .................................... 3 . WARNING LAMP FLASH CODE CHART .......... 37 .
Occupant Classification System Precaution ........... 3 . Trouble Diagnoses: "AIR BAG" Warning Lamp Does
SRS
Trouble Diagnosis Precaution ................................. 3 . Not Turn Off ........................................................... 41
.
PREPARATION .......................................................... 4. DIAGNOSTIC PROCEDURE 6 .......................... 41 .
Special Service Tool ................................................ 4. Trouble Diagnoses: "AIR BAG" Warning Lamp Does
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ...... 5 . Not Turn On ........................................................... 42
. I
SRS Configuration .................................................. 5 . DIAGNOSTIC PROCEDURE 7 .......................... 42 .
Front Seat Belt Pre-tensioner with Load Limiter ..... 6 DRIVER AIR BAG MODULE ................................... 43 .
Front Side Air Bag ................................................... 6
. Removal and Installation ....................................... 43 . J
Side Curtain Air Bag ................................................ 6. REMOVAL .......................................................... 43
.
Occupant Classification System .............................. 6 . INSTALLATION .................................................. 44 .
Direct-connect SRS Component Connectors .......... 8 . SPIRAL CABLE ....................................................... 45.
K
TROUBLE DIAGNOSIS ............................................. 9 . Removal and Installation ....................................... 45 .
Trouble Diagnoses Introduction .............................. 9 . REMOVAL .......................................................... 45
.
DIAGNOSIS FUNCTION ...................................... 9 . INSTALLATION .................................................. 46 .
HOW TO PERFORM TROUBLE DIAGNOSES FRONT PASSENGER AIR BAG MODULE ............. 47 . L
FOR QUICK AND ACCURATE REPAIR .............. 9 . Removal and Installation ....................................... 47 .
WORK FLOW ..................................................... 10 . REMOVAL .......................................................... 47
.
SRS Components Parts Location ...........................11 . INSTALLATION .................................................. 47 . M
Schematic ............................................................. 12
. WIRING HARNESS MODIFICATION ................. 48 .
Wiring Diagram -- SRS -- .................................... 13 . SIDE CURTAIN AIR BAG MODULE ....................... 50 .
CONSULT-II Function (AIR BAG) .......................... 19 . Removal and Installation ....................................... 50 .
HOW TO CHANGE SELF-DIAGNOSIS MODE REMOVAL .......................................................... 50
.
WITH CONSULT-II ............................................. 19 . INSTALLATION .................................................. 51 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 19 ... CRASH ZONE SENSOR .......................................... 52 .
SELF-DIAGNOSIS FUNCTION (WITHOUT CON- Removal and Installation ....................................... 52 .
SULT-II) ................................................................. 20
. REMOVAL .......................................................... 52
.
HOW TO CHANGE SELF-DIAGNOSIS MODE... 20 INSTALLATION .................................................. 52 .
HOW TO ERASE SELF-DIAGNOSIS RESULTS 20 ... SIDE AIR BAG (SATELLITE) SENSOR .................. 53 .
SRS Operation Check ........................................... 20 . Removal and Installation ....................................... 53 .
DIAGNOSTIC PROCEDURE 1 .......................... 20 . REMOVAL .......................................................... 53
.
Trouble Diagnoses with CONSULT-II .................... 23 . INSTALLATION .................................................. 53 .
DIAGNOSTIC PROCEDURE 2 .......................... 23 . FRONT SEAT BELT PRE-TENSIONER .................. 54 .
DIAGNOSTIC PROCEDURE 3 .......................... 28 . Removal and Installation ....................................... 54 .
Revision: March 2005 SRS-1 2005 Altima
DIAGNOSIS SENSOR UNIT .................................... 55 . COLLISION DIAGNOSIS .........................................57 .
Removal and Installation ....................................... 55 . For Frontal Collision ...............................................57
.
REMOVAL .......................................................... 55
. SRS INSPECTION (FOR FRONTAL COLLI-
INSTALLATION ................................................... 55. SION) ..................................................................57
.
ECU DISCRIMINATED NO. ................................ 55 . For Side Collision ...................................................58
.
OCCUPANT CLASSIFICATION SYSTEM CON- SRS INSPECTION (FOR SIDE COLLISION) .....58 .
TROL UNIT ............................................................... 56
.
Removal and Installation ....................................... 56 .
Revision: March 2005 SRS-2 2005 Altima
PRECAUTIONS
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EHS00102
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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 SRS and SB section of this Service Man-
ual.
WARNING: D
q 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 per-
formed by an authorized NISSAN/INFINITI dealer. E
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. F
q 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.
G
Precautions for SRS "AIR BAG" and "SEAT BELT PRE-TENSIONER" Service
EHS00103
q Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual. SRS
q Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt I
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
q The air bag diagnosis sensor unit must always be installed with the arrow mark "" pointing toward the
front of the vehicle for proper operation. Also check air bag diagnosis sensor unit for cracks, deformities or J
rust before installation and replace as required.
q The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear. K
q Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and seat mounted front side air bag module standing with the stud bolt side facing
down. L
q Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
q After air bag inflates, the front instrument panel assembly should be replaced if damaged.
M
Occupant Classification System Precaution EHS0013F
Replace occupant classification system control unit and passenger front seat cushion as an assembly.
Trouble Diagnosis Precaution EHS00104
When you read wiring diagrams, refer to the following:
q GI-14, "How to Read Wiring Diagrams" in GI section
q PG-4, "POWER SUPPLY ROUTING CIRCUIT" in PG section
When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section
Check for any service bulletins before servicing the vehicle.
Revision: March 2005 SRS-3 2005 Altima
PREPARATION
PREPARATION PFP:00002
Special Service Tool EHS00105
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.) Description
Tool name
-- Removing and installing air bag lock
(J-44615)
Air bag lock master key set
LRS191
Revision: March 2005 SRS-4 2005 Altima
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) PFP:28556
A
SRS Configuration EHS00106
B
C
D
E
F
G
SRS
I
WHIA0272E
J
The air bag deploys if the air bag diagnosis sensor unit activates while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
K
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal col-
lision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows;
L
SRS configuration Frontal collision Left side collision Right side collision
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