abs INFINITI FX35 2008 Service Manual

FRONT SEATSE-91
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7. Remove the seat cushion outer finisher.
8. Remove the seat control switch assembly.
9. Remove the lumber support switch assembly.
10. Remove the front and rear leg cover (LH and RH). NOTE:
 Slide the seat backward, and disconnect the front tabs on the
front leg cover. Then move the cover toward the rear of the
vehicle, and pull up to remove.
 Slide the seat forward, then disengage the tabs on the front LH and RH of the rear leg cover and tabs engaged into the rail.
Then pull the cover toward the rear of the vehicle.
11. Slide the seat until the body mounting bolts are visible and a tool can be inserted. NOTE:
When disassembling the driver seat after removal, set the front and rear cushion lifter to the top position.
12. Disconnect both battery cables.
13. Remove the harness connector for the side air bag module.
14. Remove the power seat harness connector and vehicle harness fixing clip.
15. Remove the front seat. NOTE:
When removing and installing, using waste, protect t he parts from damage where it may interfere with oth-
ers.
INSTALLATION
Install in the reverse order of removal.
NOTE:
PIIB8526E
1. Screw 2. Seat cushion forward finisher 3. Seat cushion outer finisher
4. Clip(C101) 5. Seat control switch
PIIA4984E
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REAR SEATSE-97
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1. Remove the cup holder in the back of the seat cushion.
2. Removal the hog rings to separate the trim and pad.
INSTALLATION OF SEAT CUSHION TRIM AND PAD
Install in the reverse order of removal.
R E M O VA L O F S E AT B A C K T R I M A N D PA D
1. Remove the trunk net hook in the back of the seatback.
2. After removing the seatback garnish, remove the hog rings.
3. Remove the headrest.
4. Remove the headrest holder. Squeeze and pull up headrest holder tabs to remove from seat-
back frame.
NOTE:
Before installing the headrest holder, check its orientation (front,
rear, left and right).
5. Remove the armrest (LH only).
6. After removing the seatback trim and pad, separate the trim and pad.
INSTALLATION OF SEATBACK TRIM AND PAD
Install in the reverse order of removal.
PIIA4985E
PIIA6037E
PIIA1158E
PIIA6038E
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TF-1
DRIVELINE/AXLE
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CONTENTS
TRANSFER
SERVICE INFORMATION .. ..........................3
DTC INDEX ..................................................... .....3
C1201-C1210, U1000 ......................................... ......3
PRECAUTIONS ...................................................4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution .................................................................4
Service Notice or Precaution .....................................5
PREPARATION ...................................................6
Special Service Tool ........................................... ......6
Commercial Service Tool ..........................................7
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
9
NVH Troubleshooting Chart ................................ ......9
TRANSFER FLUID .............................................10
Replacement ....................................................... ....10
Inspection ................................................................10
AWD SYSTEM ................................................ ....11
Power Transfer Diagram ..................................... ....11
System Description .................................................11
Schematic ...............................................................13
CAN Communication ...............................................13
TROUBLE DIAGNOSIS .....................................14
Fail-Safe Function ............................................... ....14
How to Perform Trouble Diagnosis .........................14
Location of Electrical Parts ......................................15
Circuit Diagram .......................................................16
Wiring Diagram - AWD - ..........................................17
Trouble Diagnosis Chart by Symptom ....................20
AWD Control Unit Input/Output Signal Reference
Value ................................................................... ....
20
CONSULT-III Function (ALL MODE AWD/4WD) ....21
TROUBLE DIAGNOSIS FOR SYSTEM .............24
DTC C1201 CONTROLLER FAILURE ................ ....24
DTC C1203 ABS SYSTEM ......................................24
DTC C1204 4WD SOLENOID ............................. ....25
DTC C1205 4WD ACTUATOR RLY ........................27
DTC C1210 ENGINE SIGNAL 1 ..............................28
DTC U1000 CAN COMM CIRCUIT .........................28
Power Supply Circuit for AWD Control Unit .............28
TROUBLE DIAGNOSIS FOR SYMPTOMS ......30
AWD Warning Lamp Does Not Turn ON When the
Ignition Switch Is Turned to ON ...............................
30
AWD Warning Lamp Does Not Turn OFF Several
Seconds after Engine Started ..................................
30
Heavy Tight-Corner Braking Symptom Occurs
When the Vehicle Is Driven and the Steering
Wheel Is Turned Fully to Either Side after the En-
gine Is Started .........................................................
32
Vehicle Does Not Enter AWD Mode Even Though
AWD Warning Lamp Turned to OFF .......................
33
While Driving, AWD Warning Lamp Flashes Rap-
idly (When Flashing in Approx. 1 Minute and Then
Turning OFF) ....................................................... ....
33
While Driving, AWD Warning Lamp Flashes Slow-
ly (When Continuing to Flash until Turning Ignition
Switch OFF) .............................................................
33
AWD CONTROL UNIT ......................................35
Removal and Installation .........................................35
FRONT OIL SEAL .............................................36
Removal and Installation .........................................36
REAR OIL SEAL ...............................................37
Removal and Installation .........................................37
AIR BREATHER HOSE ....................................39
Removal and Installation .........................................39
TRANSFER ASSEMBLY ..................................40
Removal and Installation .........................................40
Disassembly and Assembly .....................................40
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DTC INDEXTF-3
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SERVICE INFORMATION
DTC INDEX
C1201-C1210, U1000INFOID:0000000001534985
DTC Items
(CONSULT-III screen terms) Reference
C1201 CONTROLLER FAILURE TF-24, "
DTC C1201 CON-
TROLLER FAILURE"
C1203 ABS SYSTEMTF-24, "DTC C1203 ABS SYS-
TEM"
C1204 4WD SOLENOID TF-25, "DTC C1204 4WD SO-
LENOID"
C1205 4WD ACTUATOR RLY TF-27, "DTC C1205 4WD AC-
TUATOR RLY"
C1210 ENGINE SIGNAL 1
TF-28, "DTC C1210 ENGINE
SIGNAL 1"
U1000 CAN COMM CIRCUIT TF-28, "DTC U1000 CAN
COMM CIRCUIT"
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AWD SYSTEMTF-13
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SchematicINFOID:0000000001327433
COMPONENTS FUNCTION DESCRIPTION
CAN CommunicationINFOID:0000000001327434
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication li ne 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.
For details, refer to LAN-43, "
CAN System Specification Chart".
SDIA2160E
Component parts Function
AWD control unit  Controls driving force distribution by signals from each sensor and switch from rear wheel driving
mode (0:100) to AWD mode (50:50).
 2WD mode is available by fail-safe function if malfunction is detected in AWD system.
Wheel sensors Detects wheel speed.
AWD solenoid Controls electric controlled coupling by command current from AWD control unit.
Electric controlled coupling Transmits driving force to front final drive.
AWD warning lamp  Illuminates if malfunction is detected in electrical system of AWD system.
 There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.
 There are 2 blinks in 1 second if load is still applied to driving parts.
ABS actuator and electric unit
(control unit) Transmits the following signals via CAN communication to AWD control unit.
 Vehicle speed signal
 Stop lamp switch signal (brake signal)
ECM Transmits the following signals via CAN communication to AWD control unit.
 Accelerator pedal position signal
 Engine speed signal
Unified meter and A/C amp. Transmits conditions of parking brake switch via CAN communication to AWD control unit.
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TF-22
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TROUBLE DIAGNOSIS
SELF-DIAG RESULT MODE
Drive at 30 km/h or more for approximately 1 minute before performing the self-diagnosis.
Display Item List
CAUTION:
 If “CAN COMM CIRCUIT [U1000]” is displayed with other DTCs, first perform the trouble diagnosis for CAN communication
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 turn- ing 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
Before erasing DTC memory, start the engine and drive at 30 km/h or more for approximately 1 minute.
Checkthat ABS warning lamp turns OFF.
NOTE:
Make sure that ABS warning lamp turns OFF by driv ing 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 malfunc-
tion of “ABS SYSTE M [C1203]”. AWD warning lamp may not turn OFF if it is normal unless ignition
switch turns OFF at once and engine restarts after that.
DATA MONITOR MODE
Display Item List
Diagnostic test mode Function
ECU part number 4WD control unit part number can be read.
Self-diagnostic results Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the 4WD control unit can be read.
Active test Diagnostic Test Mode in which CONSULT-III drives some actuators apart from the 4WD control unit
and also shifts some parameters in a specified range.
Items (CONSULT-III screen
terms) Diagnostic item is detected when... Check item
CONTROLLER FAILURE
[C1201] Malfunction has occurred inside AWD control unit. TF-24, "
DTC C1201 CON-
TROLLER FAILURE"
ABS SYSTEM
[C1203]Malfunction related to wheel sensor
has been detected by ABS actu-
ator and electric unit (control unit). TF-24, "DTC C1203 ABS
SYSTEM"
4WD SOLENOID
[C1204]
Malfunction related to AWD solenoid has been detected.
TF-25, "DTC C1204 4WD
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-27, "
DTC C1205 4WD
ACTUATOR RLY" or
TF-25,
"DTC C1204 4WD SOLE-
NOID"
ENGINE SIGNAL 1
[C1210] Malfunction has been detected from ECM. TF-28, "DTC C1210 EN-
GINE SIGNAL 1"
CAN COMM CIRCUIT
[U1000]When AWD control unit is not transmitting or receiving CAN commu-
nication signal for 2 seconds or more. TF-28, "DTC U1000 CAN
COMM CIRCUIT"
NO DTC IS DETECTED.
FURTHER TESTING MAY BE
REQUIRED.
No NG item has been detected. —
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TF-24
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TROUBLE DIAGNOSIS FOR SYSTEM
TROUBLE DIAGNOSIS FOR SYSTEM
DTC C1201 CONTROLLER FAILUREINFOID:0000000001327444
DIAGNOSTIC PROCEDURE
 Check the following if “CONTROLLER FAILURE [C1201]” is displayed in self-diagnostic results of CON-SULT-III.
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode fo r “ALL MODE AWD/4WD” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the
“CONTROLLER FAILURE [C1201]” displayed?
YES >> Replace AWD control unit. Refer to TF-35.
NO >> INSPECTION END
DTC C1203 ABS SYSTEMINFOID:0000000001327445
DIAGNOSTIC PROCEDURE
 Check the following if “ABS SYSTEM [C1203]” is disp layed in self-diagnostic results of CONSULT-III.
1.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-26, "
Self-Diagnosis".
Is any malfunction detec ted by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
2.CHECK DTC AFTER DRIVING
1. Turn ignition switch “OFF”.
2. Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.
3. Make sure that ABS warning lamp turns OFF.
4. Perform erase self-diagnostic results. Refer to TF-21, "
CONSULT-III Function (ALL MODE AWD/4WD)".
5. Stop vehicle and turn ignition switch “OFF”.
6. Turn ignition switch “ON”.
7. Perform self-diagnosis.
Is the
“ABS SYSTEM [C1203]” displayed?
YES >> GO TO 3.
NO >> INSPECTION END
3.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 4.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >> INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to BRC-26,
"Self-Diagnosis".
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