2007 INFINITI FX35 power steering

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CONTENTS
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Revision: 2006 July 2007 FX35/FX45
SEAT
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Service Notice ..................................................... ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tools ................................... ..... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 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 KEYFOB INTER-
LOCK STORING .............................................. ... 12
MEMORY SWITCH OPERATION .................... ... 13
ENTRY OPERATION ....................................... ... 13
EXITING OPERATION ..................................... ... 13
KEYFOB INTERLOCK OPERATION ............... ... 14
FAIL- SAFE MODE .......................................... ... 14
CANCEL OF FAIL-SAFE MODE ...................... ... 14
Component Parts and Harness Connector Location ... 15
CAN Communication System Description ........... ... 16 CAN Communication Unit ....................................
... 16
Schematic ............................................................ ... 17
Wiring Diagram — AUT/DP — ............................ ... 19
Terminals and Reference Values for BCM ........... ... 31
Terminals and Reference Values for Automatic
Drive Positioner Control Unit ............................... ... 31
Terminals and Reference Values for Driver Seat
Control Unit .......................................................... ... 33
Work Flow ............................................................ ... 36
Preliminary Check ............................................... ... 36
SETTING CHANGE FUNCTION ...................... ... 36
CHECK POWER SUPPLY AND GROUND ...... ... 37
CONSULT-II Function (AUTO DRIVE POS.) ....... ... 39
CONSULT-II START PROCEDURE ................. ... 39
SELF-DIAGNOSIS RESULTS .......................... ... 39
DATA MONITOR .............................................. ... 40
ACTIVE TEST .................................................. ... 41
Check CAN Communication System ................... ... 42
Symptom Chart .................................................... ... 42
Check Sliding Motor Circuit ................................. ... 43
Check Reclining Motor Circuit ............................. ... 45
Check Front Lifting Motor Circuit ......................... ... 46
Check Rear Lifting Motor Circuit .......................... ... 47
Check Telescopic Motor Circuit ........................... ... 49
Check Tilt Motor Circuit ....................................... ... 50
Check Driver Side Mirror Motor Circuit ................ ... 51
Check Passenger Side Mirror Motor Circuit ........ ... 53
Check Sliding Sensor Circuit ............................... ... 55
Check Reclining Sensor Circuit ........................... ... 56
Check Front Lifting Sensor Circuit ....................... ... 57
Check Rear Lifting Sensor Circuit ....................... ... 58
Check Telescopic Sensor Circuit ......................... ... 59
Check Tilt Sensor Circuit ..................................... ... 60
Check Driver Side Mirror Sensor Circuit .............. ... 61
Check Passenger Side Mirror Sensor Circuit ...... ... 62
Check Steering and Door Mirror Sensor Power Sup-
ply and Ground Circuit ......................................... ... 64
Check Front Door Switch (Driver Side) Circuit .... ... 65
Check Sliding Switch Circuit ................................ ... 67
Check Reclining Switch Circuit ............................ ... 68

AUTOMATIC DRIVE POSITIONER SE-11
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Revision: 2006 July 2007 FX35/FX45
AUTOMATIC DRIVE POSITIONERPFP:28491
System Description NIS001UO

The system automatically moves the driver seat to facilitate entry/exit to/from the vehicle. The automatic
drive positioner control unit can also store the optimum driving positions (driver seat, steering wheel posi-
tion (tilt, telescopic) and door mirror position) for 2 people. If the driver is changes, one-touch operation
allows changing to the other driving position.

The settings (ON/OFF) of the automatic sliding seat (Entry/Exiting operation) at entry/exit can be changed
as desired, using the display unit in the center of the instrument panel. The set content is transmitted by
CAN communication, from display control unit to driver seat control unit.

Using CONSULT-II, the seat slide and steering wheel amount at entry/exit setting can be changed.
MANUAL OPERATION
The driving position [seat position, steering wheel position (tilt, telescopic) and door mirror position] can be
adjusted with the power seat switch or ADP steering switch or door mirror remote control switch.
NOTE:

The seat can be manually operated with the ignition switch OFF.

The door mirrors can be manually operated with the ignition switch turned ACC or ON.
A U T O M AT I C O P E R AT I O N
NOTE:

Disconnecting the battery erases the stored memory.

After connecting the battery, insert the key into the ignition cylinder and turn the driver door switch ON (open) →OFF (close) →ON
(open), the Entry/ Exiting operation becomes possible.

After exiting operation is carried out, return operation can be operated.
NOTE:
During automatic operation, if the ignition switch is turned ON →START, the automatic operation is suspended. When the ignition switch
returns to ON, it resumes. Function Description
Memory switch operation The seat, steering and door mirror move to the stored driving position by pushing
memory switch (1 or 2).
Entry/Exiting function Exiting operation At exit, the seat moves backward and steering wheel moves forward/upward.
Entry operation
At entry, the seat and steering wheel returns from the exiting position to the previous
driving position.
keyfob interlock operation Perform memory operation, exiting operation and entry operation by pressing keyfob
unlock button.
Auto operation temporary stop
conditions. When ignition switch turned to START during memory switch operation and return opera-
tion, memory switch operation and entry operation is stopped.
Auto operation stop conditions.

When the vehicle speed becomes 7 km/h (4 MPH) or higher.

When the setting switch, memory switch 1, or 2 are pressed.

When A/T selector lever is in any position other than P.

When the door mirror remote control switch is operated (when ignition switch turned to
ON or ACC).

When power seat switch turned ON.

When ADP steering switch turned ON (telescopic operation or tilt operation).

When door mirror operates (only memory switch operation).

When driver seat sliding Entry/Exiting setting is OFF (only entry/exiting operation).

When steering wheel tilt and telescopic Entry/Exiting setting is OFF (only entry/exiting
operation).

When the tilt and telescopic sensor malfunction is detected.

SE-16
AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
CAN Communication System DescriptionNIS001UQ
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 UnitNIS001UR
Refer to LAN-49, "CAN System Specification Chart" .
1. a: 10A 38 fuse (With Intelligent Key)
b: 50A M fusible link 2. a: Fuse block (J/B) M1, M2
b: BCM M3, M4, B14
(View with the dash side LH
removed) 3. Fuse block (J/B) fuse layout
4. a: Automatic drive positioner control unit M49, M50
b: A/T device (park position switch)
M67
(View with the center console
removed) 5. Tilt motor and telescopic motor M27
Tilt sensor and telescopic sensor M28
(View with the instrument driver lower
panel removed) 6. Seat memory switch D22
7. a: Power seat switch B175 b: Sliding switch & Lifting switch
(front & rear)
c: Reclining switch
d: Lumbar support switch B158 8. a: Lumbar support motor B172
b: Reclining motor B166 9. a: Sliding motor B161
b: Lifting motor (front) B164
c: Lifting motor (rear) B162
d: Driver seat control unit B152,
B153
10. ADP steering switch M13 11. Key switch connector M23 (Without Intelligent Key) 12. Key switch and ignition knob switch
connector M22
(With Intelligent Key)
13. Front door switch (Driver side) B26 14. Door mirror (Driver side) D2 15. Door mirror (Passenger side) D32
16. Door mirror remote control switch M18 17. Unified meter and A/C amp. M55
(View with the cluster lid C removed)
PIIB8566E

SE-42
AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
Check CAN Communication SystemNIS001V0
1. CHECK SELF-DIAGNOSTIC RESULT
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect CONSULT-II, and turn ignition switch ON.
2. Touch “AUTO DRIVE POS.” on “SELECT SYSTEM” screen.
3. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
4. Check display content in self-diagnostic results.
Displayed U1000?
Yes >> GO TO LAN-49, "CAN System Specification Chart" .
No >> Inspection END.
Symptom ChartNIS001V1
Symptom Diagnoses / service procedure Refer to
page
Only setting change function cannot be set with display. Interacted display system (without NAVI)
AV- 5 4
Navigation system (with NAVI)AV- 9 3
A part of seat system does not operate
(both automatically and manually). 1. Check sliding motor circuit
SE-43
2. Check reclining motor circuit SE-45
3. Check front lifter motor circuitSE-46
4. Check rear lifter motor circuitSE-47
5. If the above systems are normal, replace the driver
seat control unit SE-15
A part of steering tilt, telescopic and door mirror does not
operate (both automatically and manually). 1. Check tilt motor circuit
SE-50
2. Check telescopic motor circuitSE-49
3. Check driver side mirror motor circuit SE-51
4. Check passenger side mirror motor circuit SE-53
5. If the above systems are normal, replace the
automatic drive positioner control unit SE-15
A part of seat system does not operate
(only automatic operation). 1. Check sliding sensor circuit
SE-55
2. Check reclining sensor circuitSE-56
3. Check front lifting sensor circuitSE-57
4. Check rear lifting sensor circuitSE-58
5. If the above systems are normal, replace the driver
seat control unit SE-15
A part of steering tilt, telescopic system and door mirror
system dose not operate (only automatic operation). 1. Check steering and door mirror sensor power supply
and ground circuit SE-64
2. Check driver side mirror sensor circuit
SE-61
3. Check passenger side mirror sensor circuitSE-62
4. Check tilt sensor circuitSE-60
5. Check telescopic sensor circuitSE-59
6. If all the above systems are normal, replace the
automatic drive positioner control unit SE-15

AUTOMATIC DRIVE POSITIONER SE-43
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Revision: 2006 July 2007 FX35/FX45
Check Sliding Motor CircuitNIS001V2
1. CHECK SEAT SLIDING MECHANISM
Check the following.

Operation malfunction caused by sliding rail deformation or pinched harness or other foreign materials

Operation malfunction caused by foreign materials adhered to the sliding motor or sliding rail connector
rod

Operation malfunction and interference with other parts by poor installation
OK or NG
OK >>
GO TO 2 (With CONSULT-II).

GO TO 3 (Without CONSULT-II).
NG >> Repair the malfunctioning part and check again.
All the automatic operations do not operate. 1. Check A/T device (park position switch) circuit
SE-81
2. Check key switch circuit (with intelligent key)SE-82
3. Check key switch circuit (without intelligent key)SE-84
4. Check UART communication line circuitSE-88
5. If all the above systems are normal, replace the
automatic drive positioner control unit SE-15
A part of seat system does not operate
(only manual operation). 1. Check sliding switch circuit
SE-67
2. Check reclining switch circuitSE-68
3. Check front lifting switch circuitSE-70
4. Check rear lifting switch circuitSE-71
5. If the above systems are normal, replace the driver
seat control unit SE-15
A part of steering tilt, telescopic and door mirror does not
operate (only manual operation). 1. Check door mirror remote control switch (changeover
switch) circuit SE-77
2. Check door mirror remote control switch (mirror
switch) circuit SE-79
3. Check tilt switch circuit
SE-75
4. Check telescopic switch circuitSE-73
5. If the above systems are normal, replace the
automatic drive positioner control unit SE-15
Only seat memory switch operation dose not operate. 1. Check seat memory switch circuit
SE-852. If the above systems are normal, replace the driver
seat control unit SE-15
Seat memory indicator lamps 1 and 2 do not illuminate. 1. Check seat memory indicator lamp circuit
SE-872. If all the above systems are normal, replace the driver
seat control unit SE-15
The Entry/Exiting does not operated when door is opened
and closed. (The Entry/Exiting operates with key switch) 1. Check front door switch (driver side) circuit
SE-65
2. If all the above systems are normal, replace the BCMBCS-14
Only seat sliding, seat reclining and seat lifting (front and
rear) operations do not operate. Check power seat switch ground circuit
SE-72
Only lumbar support does not operate. Check lumbar support circuit SE-90
Symptom Diagnoses / service procedure Refer to
page

SE-64
AUTOMATIC DRIVE POSITIONER
Revision: 2006 July 2007 FX35/FX45
4. CHECK HARNESS CONTINUITY 2
1. Check continuity between automatic drive positioner control unit connector M49 terminal 5, 21 and door mirror (passenger side)
connector D32 terminal 2, 10.
2. Check continuity between automatic drive positioner control unit connector M49 terminal 5, 21 and ground.
OK or NG
OK >> Check the condition of the harness and connector.
NG >> Repair or replace harness between automatic drive positioner control unit and door mirror (pas-
senger side).
Check Steering and Door Mirror Sensor Power Supply and Ground CircuitNIS001VI
1. CHECK STEERING AND DOOR MIRROR SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner control unit connector M50 terminal 33 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace automatic drive positioner control unit.
2. CHECK STEERING AND DOOR MIRROR SENSOR GROUND CIRCUIT
Check continuity between automatic drive positioner control unit
connector M50 terminal 41 and ground.
OK or NG
OK >>
GO TO 3. (Door mirror sensor)

GO TO 4. (Steering sensor)
NG >> Replace automatic drive positioner control unit. 5 (OR) – 2 (LG) : Continuity should exist.
21 (G/Y) – 10 (P) : Continuity should exist.
5 (OR) – Ground : Continuity should not exist.
21 (G/Y) – Ground : Continuity should not exist.
PIIB8587E
33 (G/W) – Ground : Approx. 5V
PIIA4778E
41 (B/Y) – Ground : Continuity should exist.
PIIA4779E

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
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Revision: 2006 July 2007 FX35/FX45
TRANSFER
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions ......................................................... ..... 3
Service Notice or Precautions ............................. ..... 4
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 7
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 8
NVH Troubleshooting Chart ................................ ..... 8
TRANSFER FLUID ................................................ ..... 9
Replacement ....................................................... ..... 9
DRAINING ........................................................ ..... 9
FILLING ............................................................ ..... 9
Inspection ............................................................ ..... 9
FLUID LEAKAGE AND FLUID LEVEL ............. ..... 9
AWD SYSTEM ....................................................... ... 10
Power Transfer Diagram ..................................... ... 10
System Description ............................................. ... 10
DESCRIPTION ................................................. ... 10
ELECTRIC CONTROLLED COUPLING .......... .... 11
AWD CONTROL UNIT ..................................... .... 11
AWD WARNING LAMP .................................... ... 12
System Diagram .................................................. ... 12
COMPONENTS FUNCTION DESCRIPTION .. ... 13
CAN Communication ........................................... ... 13
SYSTEM DESCRIPTION ................................. ... 13
TROUBLE DIAGNOSIS ......................................... ... 14
Fail-Safe Function ............................................... ... 14
How to Perform Trouble Diagnosis ..................... ... 14
BASIC CONCEPT ............................................ ... 14
Location of Electrical Parts .................................. ... 15
Circuit Diagram ................................................... ... 16
Wiring Diagram — AWD — ................................. ... 17
Trouble Diagnosis Chart for Symptoms .............. ... 20
AWD Control Unit Input/Output Signal Reference
Values ................................................................. ... 21 AWD CONTROL UNIT INSPECTION TABLE ..
... 21
CONSULT-II Function (ALL MODE AWD/4WD) .. ... 22
FUNCTION ....................................................... ... 22
CONSULT-II SETTING PROCEDURE ............. ... 22
SELF-DIAG RESULT MODE ............................ ... 22
DATA MONITOR MODE ................................... ... 24
ACTIVE TEST MODE ...................................... ... 25
AWD CONTROL UNIT PART NUMBER .......... ... 25
TROUBLE DIAGNOSIS FOR SYSTEM ................. ... 26
Power Supply Circuit for AWD Control Unit ......... ... 26
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 26
DIAGNOSTIC PROCEDURE ........................... ... 26
AWD Control Unit ................................................ ... 27
DIAGNOSTIC PROCEDURE ........................... ... 27
ABS System ........................................................ ... 27
DIAGNOSTIC PROCEDURE ........................... ... 27
AWD Solenoid ..................................................... ... 28
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 28
DIAGNOSTIC PROCEDURE ........................... ... 28
COMPONENT INSPECTION ........................... ... 30
AWD Actuator Relay ............................................ ... 31
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 31
DIAGNOSTIC PROCEDURE ........................... ... 31
Engine Control Signal .......................................... ... 32
DIAGNOSTIC PROCEDURE ........................... ... 32
CAN Communication Line ................................... ... 32
DIAGNOSTIC PROCEDURE ........................... ... 32
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 33
AWD Warning Lamp Does Not Turn ON When The
Ignition Switch Is Turned to ON ........................... ... 33
DIAGNOSTIC PROCEDURE ........................... ... 33
AWD Warning Lamp Does Not Turn OFF Several
Seconds after Engine Started .............................. ... 33
DIAGNOSTIC PROCEDURE ........................... ... 33
Heavy Tight-Corner Braking Symptom Occurs
When The Vehicle Is Driven and The Steering Wheel
Is Turned Fully to Either Side after The Engine Is

TF-20
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis Chart for SymptomsNDS000A3
If AWD warning lamp turns ON, perform self-diagnosis. Refer to TF-22, "SELF-DIAG RESULT MODE" .
NOTE:
Light tight-corner braking symptom may occur depending on driving conditions. This is not malfunction. Symptom Condition Check item Reference page
AWD warning lamp does not turn ON when
the ignition switch is turned to ON.
(AWD warning lamp check) Ignition switch: ON CAN communication line
TF-33
Unified meter and A/C amp.
Unified meter control unit
AWD warning lamp does not turn OFF sev-
eral seconds after engine started. Engine running CAN communication line
TF-33
Power supply and ground for AWD con-
trol unit
Unified meter and A/C amp.
Unified meter control unit
AWD solenoid
AWD actuator relay (integrated in AWD
control unit)
Wheel sensor
Heavy tight-corner braking symptom occurs
when the vehicle is driven and the steering
wheel is turned fully to either side after the
engine is started. (See NOTE.)

While driving

Steering wheel is
turned fully to either
sides CAN communication line
TF-35Accelerator pedal position signal
AWD solenoid
Mechanical malfunction of electric con-
trolled coupling (clutch sticking etc.)
Vehicle does not enter AWD mode even
though AWD warning lamp turned to OFF. While driving AWD solenoid
TF-36
Mechanical malfunction of electric con-
trolled coupling (Mechanical engage-
ment of clutch is not possible.)
While driving, AWD warning lamp flashes
rapidly. (When flashing in approx. 1 minute
and then turning OFF.)
Rapid flashing: 2 times/second While driving Protection function is activated due to
heavy load to electric controlled cou-
pling. (AWD system is not malfunction-
ing. Also, optional distribution of torque
sometimes becomes rigid before lamp
flashes rapidly, but it is not malfunction.) TF-37
While driving, AWD warning lamp flashes
slowly. (When continuing to flash until turn-
ing ignition switch OFF)
Slow flashing: 1 time/2 seconds
While driving

Vehicle speed: 20 km/h
(12 MPH) or more Tire size is different between front and
rear of vehicle. TF-37