wiring INFINITI FX35 2005 Service Manual

SE-16
AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
CAN Communication System DescriptionAIS003MN
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAIS004UO
Refer to LAN-30, "CAN Communication Unit" .
PIIA5082E

AUTOMATIC DRIVE POSITIONER SE-19
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Wiring Diagram —AUT/DP—AIS002XF
TIWH0097E

POWER SEAT SE-93
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Wiring Diagram–SEAT– / For Driver SeatAIS002X1
TIWM0303E

POWER SEAT SE-95
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Wiring Diagram–SEAT– / For Passenger SeatAIS002X2
TIWM0305E

SE-98
HEATED SEAT
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Wiring Diagram – HSEAT –AIS002X5
TIWH0065E

SRS-1
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
H RESTRAINTS
CONTENTS
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SECTION SRS
A
B
SRS
Revision: 2005 July 2005 FX
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for SRS “AIR BAG” and “SEAT BELT
PRE-TENSIONER” Service ................................ ..... 3
PREPARATION ...................................................... ..... 4
Commercial Service Tools ................................... ..... 4
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) .. ..... 5
SRS Configuration .............................................. ..... 5
Front Seat Belt Pre-Tensioner with Load Limiter . ..... 6
Front Side Air Bag ............................................... ..... 6
Side Curtain Air Bag ............................................ ..... 6
TROUBLE DIAGNOSIS ......................................... ..... 7
Trouble Diagnosis Introduction ............................ ..... 7
DIAGNOSIS FUNCTION .................................. ..... 7
HOW TO PERFORM TROUBLE DIAGNOSIS
FOR QUICK AND ACCURATE REPAIR .......... ..... 7
WORK FLOW ................................................... ..... 8
Component Parts Location .................................. ..... 9
Schematic ........................................................... ... 10
Wiring Diagram — SRS — .................................. .... 11
CONSULT-II Function ......................................... ... 15
DIAGNOSIS MODE FOR CONSULT-II ............ ... 15
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II ........................................... ... 15
HOW TO ERASE SELF-DIAGNOSTIC
RESULTS ......................................................... ... 16
Self-Diagnosis Function (Without CONSULT-II) .. ... 16
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II ................................... ... 16
HOW TO ERASE SELF-DIAGNOSIS RESULTS ... 16
SRS Operation Check ......................................... ... 17
DIAGNOSTIC PROCEDURE 1 ........................ ... 17
Trouble Diagnosis with CONSULT-II ................... ... 19
DIAGNOSTIC PROCEDURE 2 ........................ ... 19
DIAGNOSTIC PROCEDURE 3 ........................ ... 23
DIAGNOSTIC PROCEDURE 4 (CONTINUED
FROM DIAGNOSTIC PROCEDURE 2) ........... ... 25
DIAGNOSTIC PROCEDURE 5 ........................ ... 25 Trouble Diagnosis without CONSULT-II ..............
... 29
DIAGNOSTIC PROCEDURE 6 ........................ ... 29
WARNING LAMP FLASH CODE CHART ........ ... 29
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn OFF ...................................................... ... 33
DIAGNOSTIC PROCEDURE 7 ........................ ... 33
Trouble Diagnosis: “AIR BAG” Warning Lamp Does
Not Turn ON ........................................................ ... 34
DIAGNOSTIC PROCEDURE 8 ........................ ... 34
DRIVER AIR BAG MODULE ................................. ... 35
Removal and Installation ..................................... ... 35
REMOVAL ........................................................ ... 35
INSTALLATION ................................................ ... 36
SPIRAL CABLE ..................................................... ... 37
Removal and Installation ..................................... ... 37
REMOVAL ........................................................ ... 37
INSTALLATION ................................................ ... 38
FRONT PASSENGER AIR BAG MODULE ........... ... 39
Removal and Installation ..................................... ... 39
REMOVAL ........................................................ ... 39
INSTALLATION ................................................ ... 39
SIDE CURTAIN AIR BAG MODULE ..................... ... 40
Removal and Installation ..................................... ... 40
REMOVAL ........................................................ ... 40
INSTALLATION ................................................ ... 41
CRASH ZONE SENSOR ........................................ ... 42
Removal and Installation ..................................... ... 42
REMOVAL ........................................................ ... 42
INSTALLATION ................................................ ... 42
SIDE AIR BAG (SATELLITE) SENSOR ................ ... 43
Removal and Installation ..................................... ... 43
REMOVAL ........................................................ ... 43
INSTALLATION ................................................ ... 43
FRONT SEAT BELT PRE-TENSIONER ................ ... 44
Removal and Installation ..................................... ... 44
DIAGNOSIS SENSOR UNIT .................................. ... 45
Removal and Installation ..................................... ... 45
REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
ECU DISCRIMINATED NO. ............................. ... 45

PRECAUTIONS SRS-3
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SRS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AHS000HB
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 SRS and SB section of this Service Man-
ual.
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 per-
formed by an authorized NISSAN/INFINITI dealer.

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.

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.
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” ServiceAHS000HC

Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.

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
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.

Diagnosis sensor unit must always be installed with their arrow marks “ ⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before instal-
lation and replace as required.

The spiral cable must be aligned with the neutral position since its rotations are limited. Do not turn steer-
ing wheel and column after removal of steering gear.

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.

Conduct self-diagnosis to check entire SRS for proper function after replacing any components.

After air bag inflates, the front instrument panel assembly should be replaced if damaged.

Always replace instrument panel pad following front passenger air bag deployment.

TROUBLE DIAGNOSIS SRS-7
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SRS
Revision: 2005 July 2005 FX
TROUBLE DIAGNOSISPFP:00004
Trouble Diagnosis IntroductionAHS000HL
CAUTION:

Do not use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Do not repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a
new one.

Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnostic results can be read by using “AIR BAG” warning lamp and/or CONSULT-II.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system mal-
function through the operation of the “AIR BAG” warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the “AIR BAG” warning lamp and CONSULT-II are as follows:
HOW TO PERFORM TROUBLE DIAGNOSIS FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a malfunction. It is important to fully understand the symp-
toms or conditions for a customer complaint.
Information from Customer
WHAT..... Vehicle model
WHEN..... Date, Frequencies
WHERE..... Road conditions
HOW..... Operating conditions, Symptoms
Preliminary Check
Make sure the following parts are in good order.

Battery (Refer to SC-4, "How to Handle Battery" .)

Fuse (Refer to SRS-11, "Wiring Diagram — SRS —" .)

System component-to-harness connections
User mode Diagnosis mode Display type
“AIR BAG” warning lamp X X ON-OFF operation CONSULT-II — X Monitoring

TROUBLE DIAGNOSIS SRS-11
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SRS
Revision: 2005 July 2005 FX
Wiring Diagram — SRS —AHS000HO
THWM0096E

SRS-20
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
7. Diagnostic code is displayed on “SELF-DIAG [CURRENT]”.
If no malfunction is detected on “SELF-DIAG [CURRENT]” even
though malfunction is detected in “SRS Operation Check”, check the
battery voltage. If the battery voltage is less than 9V, charge or
replace the battery. Then go to SRS-23, "
DIAGNOSTIC PROCE-
DURE 3" . If the battery voltage is OK, go to SRS-25, "DIAGNOSTIC
PROCEDURE 4 (CONTINUED FROM DIAGNOSTIC PROCEDURE
2)" to diagnose the following cases:

Self-diagnostic result “SELF-DIAG [PAST]” (previously stored in
the memory) might not be erased after repair.

The SRS system malfunctions intermittently.
CONSULT-II Diagnostic Code Chart (“SELF-DIAG [CURRENT]”)
SHIA0203E
SRS701
Diagnostic item Explanation Repair order
“Recheck SRS at each replacement”
NO DTC IS
DETECTED. When malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode.

Low battery voltage (Less than 9V)
Go to SRS-23, "DIAGNOSTIC PRO-
CEDURE 3" after charging the bat-
tery.

Self-diagnostic result “SELF-DIAG
[PAST]” (previously stored in the
memory) might not be erased after
repair.

Intermittent malfunction has been
detected in the past.

Go to SRS-25, "DIAGNOSTIC PRO-
CEDURE 4 (CONTINUED FROM
DIAGNOSTIC PROCEDURE 2)" .

Go to SRS-25, "DIAGNOSTIC PRO-
CEDURE 5" .

No malfunction is detected. —
DRIVER AIR BAG
MODULE
[OPEN]

Driver air bag module circuit is open (including the spiral cable). 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. Replace the driver air bag module.
4. Replace the spiral cable.
5. Replace the diagnosis sensor unit.
6. Replace the related harness.
DRIVER AIR BAG
MODULE
[VB-SHORT]

Driver air bag module circuit is shorted to a power supply circuit
(including the spiral cable).
DRIVER AIR BAG
MODULE
[GND-SHORT]

Driver air bag module circuit is shorted to ground (including the
spiral cable).
DRIVER AIR BAG
MODULE
[SHORT]

Driver air bag module circuit is shorted between lines.
ASSIST A/B MODULE
[OPEN]

Front passenger air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. Replace the front passenger air bag module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
ASSIST A/B MODULE
[VB-SHORT]

Front passenger air bag module circuit is shorted to a power
supply circuit.
ASSIST A/B MODULE
[GND-SHORT]

Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE
[SHORT]

Front passenger air bag module circuit is shorted between lines.