2004 INFINITI FX35 Power supply

SC-2
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AKS00794
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.
Wiring Diagrams and Trouble DiagnosisAKS00796
When you read wiring diagrams, refer to the following:

Refer to GI-15, "How to Read Wiring Diagrams" in GI section.

Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution circuit in PG section.
When you perform trouble diagnosis, refer to the following:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.

Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.

STARTING SYSTEM
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Revision: 2004 November 2004 FX35/FX45
DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
1. CHECK POWER SUPPLY FOR STARTER MOTOR “B” TERMINAL
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn ignition switch OFF.
4. Make sure that the starter motor B terminal E313 terminal 2 (B)
*1 or (B/R)*2 connection is clean and tight.
5. Check voltage between starter motor B terminal E313 terminal 2
(B)
*1 or (B/R)*2 and ground using a digital circuit tester.
NOTE:
*1: VK45DE, *2: VQ35DE
OK or NG
OK >> GO TO 2.
NG >> Check harness between the battery and the starter
motor for open circuit.
2. CHECK BATTERY HARNESS CONNECTION (VOLTAGE DROP TEST)
Check voltage between starter motor B terminal E313 terminal 2
(B)
*1 or (B/R)*2 and battery positive terminal using a digital circuit
tester.
NOTE:
*1: VK45DE, *2: VQ35DE
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter
motor for poor continuity.
3. CHECK STARTER MOTOR GROUND CIRCUIT (VOLTAGE DROP TEST)
1. Turn ignition switch OFF.
2. Check voltage between starter motor case and battery negative
terminal using a digital circuit tester.
OK or NG
OK >> Starter motor “B” terminal circuit is OK. Further inspec-
tion necessary. Refer to SC-14, "
WORK FLOW" .
NG >> Check the starter motor case and ground for poor conti-
nuity. Battery voltage should exist.
PKIA2842E
When the ignition switch is in START position,
Voltage: Less than 0.5V
PKIA2370E
When the ignition switch is in START position,
Voltage: Less than 0.2V
PKIA2943E

SC-16
STARTING SYSTEM
Revision: 2004 November 2004 FX35/FX45
DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
1. CHECK POWER SUPPLY FOR STARTER MOTOR “S” CONNECTOR
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
3. Turn ignition switch OFF.
4. Disconnect starter motor S connector.
5. Check voltage between starter motor harness connector E312
*1
or F33*2 terminal 1 (B) and ground using a digital circuit tester.
NOTE:
*1: VK45DE, *2: VQ35DE
OK or NG
OK >> GO TO 2.
NG >> Check the following.

40A fusible link (letter F , located in fuse and fusible
link box)

Ignition switch

Starter relay [within the IPDM E/R (intelligent power distribution module engine room)].

Harness for open or short
2. CHECK “S” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1. Turn ignition switch OFF.
2. Connect starter motor S connector.
3. Check voltage between starter motor harness connector E312
*1
or F33*2 terminal 1 (B) and battery positive terminal using a dig-
ital circuit tester.
NOTE:
*1: VK45DE, *2: VQ35DE
OK or NG
OK >> Starter motor “S” connector circuit is OK. Further inspec-
tion necessary. Refer to SC-14, "
WORK FLOW" .
NG >> Check harness between the battery and the starter motor “S” connector for poor continuity.
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
When the ignition switch is in START position,
Battery voltage should exist.
PKIA2807E
When the ignition switch is in START position,
Voltage: Less than 1V
PKIA2808E
Engine coolant temperature Voltage V
−30°C to −20°C (−22°F to −4°F) 8.4
−19°C to −10°C (−2°F to 14°F) 8.9
−9°C to 0°C (16°F to 32°F) 9.3
More than 1°C (More than 34°F) 9.7

SE-1
SEAT
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CONTENTS
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SECTION SE
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Revision: 2004 November 2004 FX35/FX45
SEAT
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Service Notice .......................................................... 3
Precautions for Work ................................................ 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
SQUEAK AND RATTLE TROUBLE DIAGNOSIS ...... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINING ..................................... 8
SEATS ................................................................... 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
AUTOMATIC DRIVE POSITIONER ...........................11
System Description ................................................. 11
MANUAL OPERATION ........................................ 11
AUTOMATIC OPERATION .................................. 11
MEMORY STORING AND KEY FOB INTER-
LOCK STORING .................................................. 11
MEMORY SWITCH OPERATION ....................... 13
ENTRY OPERATION .......................................... 13
EXITING OPERATION ........................................ 13
KEY FOB INTERLOCK OPERATION ................. 14
FAIL- SAFE MODE ............................................. 14
CANCEL OF FAIL-SAFE MODE ......................... 14
Component Parts and Harness Connector Location ... 15CAN Communication System Description .............. 16
CAN Communication Unit ....................................... 16
Schematic ............................................................... 17
Wiring Diagram–AUT/DP– ...................................... 19
Terminals and Reference Values for BCM .............. 30
Terminals and Reference Values for Automatic
Drive Positioner Control Unit .................................. 30
Terminals and Reference Values for Driver Seat
Control Unit ............................................................. 32
Work Flow ............................................................... 34
Preliminary Check .................................................. 35
SETTING CHANGE FUNCTION ......................... 35
CHECK POWER SUPPLY AND GROUND ......... 35
CONSULT-II Function ............................................. 38
CONSULT-II INSPECTION PROCEDURE .......... 38
SELF-DIAGNOSIS RESULTS ............................. 39
CAN DIAGNOSIS SUPPORT MONITOR ............ 40
DATA MONITOR ................................................. 40
ACTIVE TEST ..................................................... 41
Can Communication Inspection Using CONSULT-
II (Self-diagnosis) .................................................... 42
Symptom Chart ....................................................... 42
Sliding Motor Circuit Check .................................... 44
Reclining Motor Circuit Check ................................ 45
Front Lifting Motor Circuit Check ............................ 46
Rear Lifting Motor Circuit Check ............................. 48
Telescopic Motor Circuit Check .............................. 49
Tilt Motor Circuit Check .......................................... 51
Driver Side Mirror Motor Circuit Check ................... 52
Passenger Side Mirror Motor Circuit Check ........... 54
Sliding Sensor Circuit Check .................................. 56
Reclining Sensor Circuit Check .............................. 57
Front Lifting Sensor Circuit Check .......................... 58
Rear Lifting Sensor Circuit Check .......................... 59
Telescopic Sensor Circuit Check ............................ 60
Tilt Sensor Circuit Check ........................................ 61
Driver Side Mirror Sensor Circuit Check ................. 62
Passenger Side Mirror Sensor Circuit Check ......... 63
Steering and Door Mirror Sensor Power and Ground
Circuit Check .......................................................... 64

SE-30
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for BCMAIS002XG
Terminals and Reference Values for Automatic Drive Positioner Control UnitAIS002XH
TERMINAL WIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
11 LG/R ACC power supply Ignition switch ACC Battery voltage
37 B/W Key switch signalKey switch ON (key is inserted in
ignition key cylinder)Battery voltage
Key switch OFF (key is removed
from ignition key cylinder)0
38 W/L Ignition power supply Ignition switch ON Battery voltage
39 L CAN-H — —
40 R CAN-L — —
42 L/R Battery power supply (fuse) Ignition switch OFF Battery voltage
49 B Ground (signal) Ignition switch ON 0
52 B Ground (power) Ignition switch ON 0
55 GBattery power supply (Fusible
link)Ignition switch OFF Battery voltage
62 W Front door switch (driver side) ON (Open) → OFF (Closed) 0 → Battery voltage
TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
1 LG/R Tilt switch UP signalTilt switch turned to upward 0
Tilt switch neutral position 5
2 G/W Changeover switch RH signalWhen changeover switch in RH posi-
tion0
When changeover switch in neutral
position5
3 GY Mirror switch UP signalWhen mirror switch in turned to
upward position0
When mirror switch in neutral position 5
4 Y Mirror switch LEFT signalWhen mirror switch in turned to left-
ward position0
When mirror switch in neutral position 5
5ORPassenger side mirror sensor
(vertical) signalWhen passenger side mirror motor is
UP or DOWN operationChanges between 3 (close to perk)
1 (close to valley)
6P/LDriver side mirror sensor (verti-
cal) signalWhen driver side mirror motor is UP
or DOWN operationChanges between 3 (close to perk)
1 (close to valley)
7 Y/R Tilt sensor inputTilt position, top 1.82
Tilt position, bottom 4.44
10 B UART LINE (TX) Memory switch 1 or 2 operated
11 BR Telescopic switch forward signalTelescoping switch turned to forward 0
Telescoping switch neutral position 5
PIIA4813E

AUTOMATIC DRIVE POSITIONER
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14 L/WPassenger side mirror motor UP
signalWhen passenger side mirror motor
UP operation1.5 - Battery voltage
Passenger side mirror motor OFF 0
15 L/BPassenger side mirror motor sig-
nalWhen passenger side mirror motor
LEFT operation1.5 - Battery voltage
Passenger side mirror motor RH OFF 0
16 PDriver side mirror motor DOWN
signalWhen driver side mirror motor DOWN
operation1.5 - Battery voltage
Driver side mirror motor OFF 0
Driver side mirror motor RIGTH
signalWhen driver side mirror motor RIGHT
operation1.5 - Battery voltage
Driver side mirror motor OFF 0
17 R/B Tilt switch DOWN signalTilt switch turned to downward 0
Tilt switch neutral position 5
18 L/OR Changeover switch LH signalWhen changeover switch in LH posi-
tion0
When changeover switch in neutral
position5
19 GY/L Mirror switch DOWN signalWhen mirror switch in turned to down-
ward position0
When mirror switch in neutral position 5
20 PU Mirror switch RIGHT signalWhen mirror switch in turned to right-
ward position0
When mirror switch in neutral position 5
21 G/YPassenger side mirror sensor
(horizontal) signalWhen passenger side mirror motor is
LEFT or RIGHT operationChanges between 1 (close to left
edge) 3 (close to right edge)
22 L/YDriver side mirror sensor (hori-
zontal) signalWhen driver side mirror motor is LEFT
or RIGHT operationChanges between 1 (close to right
edge) 3 (close to left edge)
23 Y/B Telescopic sensor inputTelescoping position, top 0.56
Telescoping position, bottom 4.44
26 W UART LINE (RX) Memory switch 1 or 2 operated
27 LGTelescopic switch backward sig-
nalTelescopic switch turned to backward 0
Telescoping switch neutral position 5
28 SB Ignition START power supply Ignition switch START Battery voltage
30 W/RPassenger side mirror motor
DOWN signalWhen passenger side mirror motor
downward1.5 - Battery voltage
Passenger side mirror motor OFF 0
Passenger side mirror motor
RIGTH signalWhen passenger side mirror motor
RIGHT operation1.5 - Battery voltage
Passenger side mirror motor OFF 0
31 R/WDriver side mirror motor UP sig-
nalWhen driver side mirror motor upward 1.5 - Battery voltage
Driver side mirror motor OFF 0 TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
PIIA4814E

SE-32
AUTOMATIC DRIVE POSITIONER
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for Driver Seat Control UnitAIS002XI
32 G/BDriver side mirror motor LEFT
signalWhen driver side mirror motor LEFT
operation1.5 - Battery voltage
Driver side mirror motor OFF 0
33 G/W Sensor power supply — 5
34 L/R Battery power supply Ignition switch OFF Battery voltage
35 R/L Tilt motor UP signalTilt switch turned to upward Battery voltage
Tilt switch OFF 0
36 L/R Telescopic motor forward signalTelescoping switch turned to forward Battery voltage
OFF 0
39 W/R Battery power supply Ignition switch OFF Battery voltage
40 B Ground (signal) Ignition switch ON 0
41 B/Y Sensor ground — 0
42 R/B Tilt motor DOWN signalTilt switch turned to downward Battery voltage
Tilt switch OFF 0
44 L/WTelescopic motor backward sig-
nalTelescoping switch turned to back-
wardBattery voltage
Telescoping switch OFF 0
48 B Ground (power) Ignition switch ON 0 TERMI-
NALWIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
TERMI-
NAL WIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
1A R Battery power supply Ignition switch OFF Battery voltage
2 P UART LINE (TX) —
3 G Sliding motor forward signalSliding switch turned to forward (Motor
operated)Battery voltage
OFF 0
4 G/L Reclining motor FR signalReclining switch turned to forward
(Motor operated)Battery voltage
OFF 0
5LGFront lifting motor DOWN
signalFront lifting switch turned to downward
(Motor operated)Battery voltage
OFF 0
6 G/W Rear lifting motor UP signalRear lifting switch turned to upward
(Motor operated)Battery voltage
OFF 0
7 G/BRear lifting motor DOWN
signalRear lifting switch turned to downward
(Motor operated)Battery voltage
OFF 0
PIIA4814E

AUTOMATIC DRIVE POSITIONER
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Revision: 2004 November 2004 FX35/FX45
8 G/Y UART LINE (RX) —
9 BR IGN START power supply Ignition switch START Battery voltage
10 G/R Sliding motor RR signalSliding switch turned to backward
(Motor operated)Battery voltage
OFF 0
11A R/W Battery power supply Ignition switch OFF Battery voltage
12 G/Y Reclining motor RR signalReclining switch turned to backward
(Motor operated)Battery voltage
OFF 0
13 YFront lifting motor UP out-
put signalFront lifting switch turned to upward
(Motor operated)Battery voltage
OFF 0
14 OR CAN-H — —
15 SB CAN-L — —
16A B Ground (power) Ignition switch ON 0
17 PU Detention switch signalSelector lever other than P position Battery voltage
Selector lever is sifted to P position 0
18 G Seat sliding sensor signalON (sliding motor operation)
Other than above 0 or 5
19 G/Y Front lifting sensor signalON (front lifting motor operation)
Other than above 0 or 5
22 L/GPower seat memory switch
1 signalMemory switch 1 ON 0
Memory switch 1 OFF 5
23 Y/WPower seat memory switch
indictor 1 signalMemory switch 1 ON 1
Memory switch 1 OFF Battery voltage
24 L/RSeat sliding switch forward
signalON (seat sliding switch turned to for-
ward)0
OFF Battery voltage
25 L/ORSeat reclining switch for-
ward signalON (seat reclining switch turned to for-
ward)0
OFF Battery voltage TERMI-
NAL WIRE
COLORITEM CONDITIONVOLTAGE (V)
(Approx.)
PIIA4813E
PIIA3277E
SIIA0691J