2005 INFINITI FX35 turn signal

SE-88
AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
Memory Indicator Lamp Circuit CheckAIS002Y7
1. CHECK FUNCTION
With CONSULT-II
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Memory indicator lamp circuit is OK.
NG >> GO TO 2.
2. CHECK SEAT MEMORY SWITCH AND LUMBER SUPPORT SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch and lumber support switch connector.
3. Check voltage between seat memory switch and lumber support switch connector B158 terminal 11 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness between fuse block (J/B) and
seat memory switch and lumber support switch.
3. CHECK HARNESS CONTINUITY
1. Disconnect driver seat control unit connector.
2. Check continuity between driver seat control unit connector B152 terminals 23 (Y/W), 36 (Y/G) and seat memory switch and
lumber support switch connector B158 terminals 23, 36.
3. Check continuity between driver seat control unit connector B152 terminals 23, 36 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace harness between automatic drive positioned control unit and seat memory
switch and lumber support switch.
Test item Description
MEMORY SW
INDCTR The memory switch indicator is lit by receiving the drive signal.
PIIA0319E
11 (R/W) – Ground : Battery voltage
PIIA6705E
23 (Y/W) – 23 (Y/W) : Continuity should exist.
36 (Y/G) – 36 (Y/G) : Continuity should exist.
23 (Y/W) – Ground : Continuity should not exist.
36 (Y/G) – Ground : Continuity should not exist.
PIIA5077E

AUTOMATIC DRIVE POSITIONER SE-89
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4. CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
Check voltage between driver seat control unit connector B152 ter-
minals 23, 36 and ground.
OK or NG
OK >> Memory indicator lamp circuit is OK.
NG >> Replace seat memory switch and lumber support switch.
Uart Communication Line Circuit CheckAIS002Y8
1. CHECK UART LINE HERNESS
1. Turn ignition switch OFF.
2. Disconnect driver seat control unit connector and automatic drive positioner control unit connector.
3. Check continuity between driver seat control unit connector B152 terminal 2, 8 and automatic drive positioner connector
M49 terminal 10, 26.
4. Check continuity between driver seat control unit connector B152 terminal 2, 8 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between driver seat control unit and automatic drive positioner.
2. CHECK UART LINE SIGNAL 1
1. Turn ignition switch ON.
2. Check signal between driver seat control unit connector ground, with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the flowing.

When voltage signal dose not appear with a constant voltage (approx. 5V), replace driver seat
control unit.

When voltage signal dose not appear with a constant voltage (approx. 0V), replace automatic
drive positioner control unit.
23 (Y/W) – Ground : Battery voltage
36 (Y/G) – Ground : Battery voltage
PIIA5078E
2 (P) − 26 (W) : Continuity should exist.
8 (G/Y) − 10 (B) : Continuity should exist.
2 (P) − Ground : Continuity should not exist.
8 (G/Y) − Ground : Continuity should not exist.
PIIA5099E
Connector Te r m i n a l s
(Wire color) Condition Signal
(Reference value)
(+) (–)
B152 2 (P) Ground Seat
memory
switch 1 or
2 opera-
tion
PIIA5097EPIIA4814E

SE-90
AUTOMATIC DRIVE POSITIONER
Revision: 2005 July 2005 FX
3. CHECK UART LINE SIGNAL 2
Check signal between automatic driver positioner control unit connector ground, with oscilloscope.
OK or NG
OK >> GO TO 4.
NG >> Check the flowing.

When voltage signal dose not appear with a constant voltage (approx. 5V), replace automatic
driver seat control unit.

When voltage signal dose not appear with a constant voltage (approx. 0V), replace driver seat
control unit.
4. CHECK DRIVER SEAT CONTROL UNIT
Dose the automatic drive positioner operate, when the driver control unit exchanged?
Does seat memory function operate?
YES >> Replace automatic drive positioner control unit.
NG >> Replace driver seat control unit.
Lumber Support Circuit CheckAIS003C1
1. CHECK LUMBER SUPPORT SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch and lumber support switch connector.
3. Check voltage between seat memory switch and lumber support switch connector B158 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness between fuse block (J/B) and
seat memory switch and lumber support switch.
Connector Te r m i n a l s
(Wire color) Condition Signal
(Reference value)
(+) (–)
M49 10 (B) Ground Seat
memory
switch 1 or
2 opera-
tion
PIIA5098EPIIA4813E
1 (R) – Ground: : Battery voltage
PIIA6707E

SPIRAL CABLE SRS-37
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Revision: 2005 July 2005 FX
SPIRAL CABLEPFP:25554
Removal and InstallationAHS000HX
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Remove driver air bag module. Refer to SRS-35, "
Removal and Installation" .
2. Set the steering wheel in the neutral position.
3. Removal steering wheel nut.
4. Remove steering wheel with steering wheel puller [SST: ST2718001].
CAUTION:
Be careful not to over-tighten puller on steering wheel.
5. Remove steering column covers. Refer to IP-11, "
Removal and Installation" .
6. Loosen the spiral cable fixing screws, and then remove the spiral cable. CAUTION:

Do not disassemble spiral cable.

Do not apply lubricant to the spiral cable.
PHIA0309E
1. Steering wheel 2. Nut 3. Spiral cable
4. Driver air bag module connector 5. Screw 6. Wiper and washer switch
7. Lighting and turn signal switch 8. Steering column assembly 9. Steering column cover
10. Screw
PHIA0100E

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
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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 ................................................................. ... 20 AWD CONTROL UNIT INSPECTION TABLE ..
... 20
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

PRECAUTIONS TF-3
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ADS000RH
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.
PrecautionsADS000RI

Before connecting or disconnecting the AWD control unit
harness connector, turn ignition switch “OFF” and discon-
nect battery ground cable. Because battery voltage is
applied to AWD control unit even if ignition switch is turned
“OFF”.

When connecting or disconnecting pin connectors into or
from AWD control unit, take care not to damage pin termi-
nals (bend or break).
When connecting pin connectors, make sure that there are
no bends or breaks on AWD control unit pin terminal.

Before replacing AWD control unit, perform AWD control
unit input/output signal inspection and make sure whether
AWD control unit functions properly or not. Refer to TF-20,
"AWD Control Unit Input/Output Signal Reference Values" .
SEF289H
SEF291H
SDIA1848E

TF-20
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart for SymptomsADS000S3
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.
AWD Control Unit Input/Output Signal Reference ValuesADS000S4
AWD CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II
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
Monitored item [Unit] Content Condition Display value
FR RH SENSOR [km/h] or [mph] Wheel speed (Front wheel
right) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
FR LH SENSOR [km/h] or [mph] Wheel speed (Front wheel
left) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)

TROUBLE DIAGNOSIS TF-23
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3. Stop vehicle. With engine at idle, touch “SELF-DIAG RESULTS”.
Display shows malfunction experienced since the last erasing
operation.
NOTE:

The details for “TIME” are as follow:
–“0”: Error currently detected with AWD control unit.
–Except for “0”: Error detected in the past and memorized
with AWD control unit.
Detects frequency of driving after DTC occurs (frequency
of turning ignition switch “ON/OFF”).
Display Item List
CAUTION:

If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communica-
tion line.

Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h (19 MPH) or more after
turning ignition switch "OFF" if AWD warning lamp turns ON with system malfunction of “ABS SYSTEM [C1203]”. AWD
warning lamp may not turn OFF if it is normal unless ignition switch turns OFF at once and engine restarts after that.
How to Erase Self-Diagnostic Results
1. Perform applicably inspection of malfunctioning item and then repair or replace.
2. Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
3. Make sure that ABS warning lamp turns OFF. NOTE:
Make sure that ABS warning lamp turns OFF by driving for a minute at vehicle speed of 30 km/h
(19 MPH) or more after turning ignition switch "OFF" if AWD warning lamp turns ON with system
malfunction of “ABS SYSTEM [C1203]”. AWD warning lamp may not turn OFF if it is normal unless
ignition switch turns OFF at once and engine restarts after that.
4. Turn ignition switch “OFF” to erase memory.
5. Start engine and select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
6. Touch “ERASE” on CONSULT-II screen to erase DTC memory. CAUTION:
If memory cannot be erased, perform applicably diagnosis.
7. Drive at 30 km/h (19 MPH) or more for approx. 1 minute. Be sure AWD warning lamp is OFF.
SDIA2217E
Items (CONSULT-II screen terms) Diagnostic item is detected when... Check item
CONTROLLER FAILURE
[C1201] Malfunction has occurred inside AWD control unit.
TF-27, "
AWD Control Unit"
ABS SYSTEM
[C1203] Malfunction related to wheel sensor has been detected by ABS actu-
ator and electric unit (control unit). TF-27, "ABS System"
4WD SOLENOID
[C1204] Malfunction related to AWD solenoid has been detected.
TF-28, "AWD Solenoid"
4WD ACTUATOR RLY
[C1205] Malfunction has been detected from AWD actuator relay integrated
with AWD control unit, or malfunction related to AWD solenoid has
been detected. TF-31, "AWD Actuator
Relay" or
TF-28, "AW D
Solenoid"
ENGINE SIGNAL 1
[C1210] Malfunction has been detected from ECM. TF-32, "Engine Control Sig-
nal"
CAN COMM CIRCUIT
[U1000] Malfunction has been detected from CAN communication line.
TF-32, "CAN Communica-
tion Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY BE
REQUIRED. No NG item has been detected. —