2008 INFINITI FX35 section ma

BR-1
BRAKES
C
DE
G H
I
J
K L
M
SECTION BR
A
B
BR
N
O P
CONTENTS
BRAKE SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution for Procedure without Cowl Top Cover ......2
Precaution for Brake System ....................................2
PREPARATION ...................................................3
Commercial Service Tool .................................... ......3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ................................ ......4
BRAKE PEDAL .............................................. .....5
Inspection and Adjustment .................................. ......5
Component ................................................................6
Removal and Installation ...........................................6
BRAKE FLUID .....................................................8
On-Board Inspection ........................................... ......8
Drain and Refill ..........................................................8
Bleeding Brake System .............................................8
BRAKE TUBE AND HOSE ................................10
Hydraulic Circuit .................................................. ....10
Removal and Installation of Front Brake Tube and
Brake Hose .............................................................
10
Removal and Installation of Rear Brake Piping
and Brake Hose ......................................................
11
Inspection After Installation .....................................11
BRAKE MASTER CYLINDER ........................ ....12
On-Board Inspection ........................................... ....12
Component ..............................................................12
Removal and Installation .........................................12
Disassembly and Assembly ....................................13
BRAKE BOOSTER ...........................................14
On-Vehicle Service .............................................. ....14
Component ..............................................................14
Removal and Installation .........................................14
VACUUM LINES ...............................................16
Component ..............................................................16
Removal and Installation .........................................16
Inspection ................................................................16
FRONT DISC BRAKE .......................................18
On-Vehicle Inspection ......................................... ....18
Component ..............................................................18
Removal and Installation of Brake Pad ...................19
Removal and Installation of Brake Caliper Assem-
bly ........................................................................ ....
19
Disassembly and Assembly of Brake Caliper As-
sembly .....................................................................
20
Brake Burnishing Procedure ....................................23
REAR DISC BRAKE .........................................24
On-Vehicle Inspection ......................................... ....24
Component ..............................................................24
Removal and Installation of Brake Pad ...................25
Removal and Installation of Brake Caliper Assem-
bly ........................................................................ ....
25
Disassembly and Assembly of Brake Caliper As-
sembly .....................................................................
26
Brake Burnishing Procedure ....................................29
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
30
General Specification ..............................................30
Brake Pedal .............................................................30
Brake Booster ..........................................................30
Check Valve ............................................................30
Front Disc Brake ......................................................30
Rear Disc Brake ......................................................30
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BR-4
< SERVICE INFORMATION >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001327606
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
BR-18
,
BR-24
BR-18
, BR-24
BR-18
, BR-24—
—
BR-20, BR-26—
—
—
BR-20, BR-26—
NVH in PR section
NVH in FFD an d RFD section
NVH in FAX, RAX and FSU, RSU section
NVH in WT section
NVH in WT section
NVH in FAX and RAX section
NVH in PS section
Possible cause and
SUSPECTED PARTS
Pads - damaged
Pads - uneven wear
Shims damaged
Rotor imbalance
Rotor damage
Rotor runout
Rotor deformation
Rotor deflection
Rotor rust
Rotor thickness variation
Drum out of round
PROPELLER SHAFT
DIFFERENTIAL
AXLE AND SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
STEERING
Symptom BRAKE Noise
××× ×× ×××
××
Shake ×××××
××
Shimmy, Judder ××××××× ××× ×
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BRC-1
BRAKES
C
DE
G H
I
J
K L
M
SECTION BRC
A
B
BRC
N
O P
CONTENTS
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
SERVICE INFORMATION .. ..........................
3
DTC INDEX ..................................................... .....3
C1101-C1116 ...................................................... ......3
C1120-C1136 ............................................................3
C1140-C1170 ............................................................3
U1000 ........................................................................4
PRECAUTIONS ...................................................5
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
5
Precaution for Brake System ....................................5
Precaution for Brake Control .....................................5
PREPARATION ...................................................7
Special Service Tool ........................................... ......7
Commercial Service Tool ..........................................7
ON-VEHICLE SERVICE ......................................8
Adjustment of Steering Angle Sensor Neutral Po-
sition .................................................................... ......
8
Calibration of Decel G Sensor (AWD Models) ..........8
SYSTEM DESCRIPTION ................................ ....10
Schematic ........................................................... ....10
Functions .................................................................10
Fail-Safe Function ...................................................11
Hydraulic Circuit Diagram .......................................12
CAN Communication ...............................................12
TROUBLE DIAGNOSIS .....................................13
Fail-Safe Function ............................................... ....13
How to Proceed with Diagnosis ..............................13
Component Part Location .......................................16
Schematic ...............................................................17
Wiring Diagram - VDC - ..........................................18
Control Unit Input/Output Signal Standard ..............23
CONSULT-III Functions (ABS) ................................26
Self-Diagnosis ..................................................... ....26
Data Monitor ........................................................ ....28
Active Test ...............................................................30
For Fast and Accurate Diagnosis ............................31
Basic Inspection ......................................................32
TROUBLE DIAGNOSIS FOR SYSTEM ............34
DTC C1101 RR RH SENSOR-1 ..............................34
DTC C1102 RR LH SENSOR-1 ..............................35
DTC C1103 FR RH SENSOR-1 ..............................35
DTC C1104 FR LH SENSOR-1 ...............................35
DTC C1105 RR RH SENSOR-2 ..............................36
DTC C1106 RR LH SENSOR-2 ..............................36
DTC C1107 FR RH SENSOR-2 ..............................36
DTC C1108 FR LH SENSOR-2 ...............................36
DTC C1109 BATTERY VOLTAGE [ABNORMAL] ....36
DTC C1110 CONTROLLER FAILURE ....................37
DTC C1111 PUMP MOTOR ....................................37
DTC C1113 G-SENSOR .........................................38
DTC C1115 ABS SENSOR [ABNORMAL SIG-
NAL] .........................................................................
39
DTC C1116 STOP LAMP SW .................................39
DTC C1120 FR LH IN ABS SOL .............................40
DTC C1121 FR LH OUT ABS SOL .........................41
DTC C1122 FR RH IN ABS SOL ......................... ....41
DTC C1123 FR RH OUT ABS SOL .........................42
DTC C1124 RR LH IN ABS SOL .............................42
DTC C1125 RR LH OUT ABS SOL ..................... ....42
DTC C1126 RR RH IN ABS SOL ............................42
DTC C1127 RR RH OUT ABS SOL ........................42
DTC C1130 ENGINE SIGNAL 1 .......................... ....42
DTC C1131 ENGINE SIGNAL 2 ..............................42
DTC C1132 ENGINE SIGNAL 3 ..............................42
DTC C1133 ENGINE SIGNAL 4 ..............................42
DTC C1136 ENGINE SIGNAL 6 ..............................42
DTC C1140 ACTUATOR RLY .................................43
DTC C1142 PRESS SEN CIRCUIT ........................43
DTC C1143 ST ANG SEN CIRCUIT ................... ....44
DTC C1144 ST ANG SEN SIGNAL .........................45
DTC C1145 YAW RATE SENSOR ..........................46
DTC C1146 SIDE G-SEN CIRCUIT ........................46
DTC C1155 BR FLUID LEVEL LOW .......................46
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

BRC-50
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS
The ABS Function Does Not Operate
INFOID:0000000001327695
CAUTION:
The ABS does not operate when the sp eed is 10 km/h (6 MPH) or less.
1.CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 seconds after the ignition switch is turned ON or when driv-
ing.
OK or NG
OK >> CHECK WHEEL SENSOR. Refer to BRC-49, "Excessive ABS Function Operation Frequency".
NG >> Perform self-diagnosis. Refer to BRC-26, "
Self-Diagnosis".
Pedal Vibration or ABS Operation Sound OccursINFOID:0000000001327696
CAUTION:
Under the following conditions, when brake pedal is lightly depressed (just place a foot on it), ABS is
activated and vibration is felt. However, this is normal.
 When shifting gears
 When driving on slippery road
 During cornering at high speed
 When passing over bumps or grooves
 When pulling away just after st arting engine [at approximately 10 km/h (6 MPH) or higher]
1.SYMPTOM CHECK 1
Check if pedal vibration or operati on sound occurs when engine is started.
OK or NG
OK >> Perform self-diagnosis. Refer to BRC-26, "Self-Diagnosis".
NG >> GO TO 2.
2.SYMPTOM CHECK 2
Check symptom when electrical component (headlamps, etc.) switches are operated.
Does the symptom occur when the electrical component (head lamp, etc.) switches are operated?
YES >> Check if there is a radio, antenna, antenna lead wi re, or wiring close to ABS actuator and electric
unit (control unit) (or its wiring), and if there is, move it farther away.
NO >> CHECK WHEEL SENSOR. Refer to BRC-49, "
Excessive ABS Function Operation Frequency".
Vehicle Jerks During VDC/TCS/ABS ControlINFOID:0000000001327697
1.CHECK ENGINE SPEED SIGNAL
Perform CONSULT-III “DATA MONITOR” to check engine speed.
Is engine speed at idle 400 rpm or higher?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 seconds after the ignition switch is turned ON or when driv-
ing.
OK or NG
OK >> System is normal.
NG >> GO TO 3.
3.CHECK ECM SELF-DIAGNOSTIC RESULTS
Perform ECM self-diagnosis.
Are self-diagnosis items displayed?
YES >> Check the corresponding items. Refer to EC-89(VQ35DE), EC-666(VK45DE) in “Engine Control
(EC section)”.
NO >> GO TO 4.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

CO-1
ENGINE
C
DE
F
G H
I
J
K L
M
SECTION CO
A
CO
N
O P
CONTENTS
ENGINE COOLING SYSTEM
VQ35DE
SERVICE INFORMATION .. ..........................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Liquid Gasket .....................................3
PREPARATION ...................................................5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
OVERHEATING CAUSE ANALYSIS ..................7
Troubleshooting Chart ......................................... ......7
COOLING SYSTEM ....................................... .....9
Cooling Circuit ..................................................... ......9
System Chart ............................................................9
ENGINE COOLANT ...........................................10
Inspection ............................................................ ....10
Changing Engine Coolant .......................................10
RADIATOR .........................................................13
Component .......................................................... ....13
Removal and Installation .........................................13
Checking Radiator Cap ...........................................14
Checking Radiator ...................................................15
RADIATOR (ALUMINUM TYPE) ........................16
Component .......................................................... ....16
Disassembly and Assembly ....................................16
COOLING FAN ...................................................20
Component .......................................................... ....20
Removal and Installation .........................................20
Disassembly and Assembly ....................................20
WATER PUMP ...................................................22
Component .......................................................... ....22
Removal and Installation .........................................22
WATER INLET AND THERMOSTAT ASSEM-
BLY ....................................................................
27
Component .......................................................... ....27
Removal and Installation .........................................27
WATER OUTLET AND WATER PIPING ..........29
Component ..............................................................29
Removal and Installation .........................................29
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
31
Standard and Limit ..................................................31
VK45DE
SERVICE INFORMATION .. .........................
32
PRECAUTIONS .................................................32
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
32
PREPARATION .................................................33
Special Service Tool ................................................33
Commercial Service Tool ........................................33
OVERHEATING CAUSE ANALYSIS ................34
Troubleshooting Chart .............................................34
COOLING SYSTEM ..........................................36
Cooling Circuit .........................................................36
System Chart ...........................................................36
ENGINE COOLANT ..........................................37
Inspection ................................................................37
Changing Engine Coolant ........................................37
RADIATOR ....................................... .................40
Component .......................................................... ....40
Removal and Installation .........................................40
Checking Radiator Cap ...........................................42
Checking Radiator ...................................................43
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-1
ELECTRICAL
C
DE
F
G H
I
J
L
M
SECTION DI
A
B
DI
N
O P
CONTENTS
DRIVER INFORMATION SYSTEM
SERVICE INFORMATION .. ..........................3
DTC INDEX ..................................................... .....3
U1000 - U1010 .................................................... ......3
B2202 - B2205 ..........................................................3
C1B00 - C1B03 .........................................................3
PRECAUTION .....................................................4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
COMBINATION METERS ...................................5
System Description ............................................. ......5
Component Parts and Harness Connector Loca-
tion ............................................................................
8
Arrangement of Combination Meter ..........................9
Circuit Diagram .......................................................10
Wiring Diagram - METER - .....................................11
Terminal and Reference Value for Combination
Meter .......................................................................
13
Terminal and Reference Value for Unified Meter
and A/C Amp ...........................................................
14
Self-Diagnosis Mode of Combination Meter ............14
CONSULT-III Function (METER/M&A) ...................15
Trouble Diagnosis ...................................................15
Symptom Chart .......................................................16
Power Supply and Ground Circuit Inspection .........16
Vehicle Speed Signal Inspection .............................17
Engine Speed Signal Inspection .............................18
Engine Coolant Temperature Signal Inspection ......19
Fuel Level Sensor Signal Inspection .......................19
Fuel Gauge Pointer Fluctuates, Indicator Wrong
Value or Varies ........................................................
21
Fuel Gauge Does Not Move to FULL Position ........21
Odo/Trip Meter and Illumination Control Switch In-
spection ............................................................... ....
21
Electrical Component Inspection .............................21
Removal and Installation of Combination Meter .....22
Disassembly and Assembly of Combination Meter
....
23
Removal and Installation of Odo/Trip Meter and Il-
lumination Control Switch .................................... ....
24
UNIFIED METER AND A/C AMP ......................26
System Description ..................................................26
Schematic ................................................................27
CONSULT-III Function (METER/M&A) ....................27
Power Supply and Ground Circuit Inspection ..........29
DTC [U1000] CAN Communication Circuit ..............30
DTC [B2202] Meter Commun ication Circuit ............30
DTC [B2205] Vehicle Speed Circuit .................... ....32
Removal and Installation of Unified Meter and A/C
Amp .........................................................................
32
WARNING LAMPS ............................................34
System Description .............................................. ....34
Schematic ................................................................35
Wiring Diagram - WARN - .......................................36
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) .......................................................... ....
43
Oil Pressure Warning Lamp Does Not Turn Off
(Oil Pressure Is Normal) ...................................... ....
45
Component Inspection .............................................46
A/T INDICATOR ................................................47
System Description ..................................................47
Wiring Diagram - AT/IND - .......................................48
A/T Indicator Is Malfunction .....................................49
WARNING CHIME .............................................51
System Description .............................................. ....51
Component Parts and Harness Connector Loca-
tion ...........................................................................
53
Schematic ................................................................54
Wiring Diagram - CHIME - .......................................55
Terminal and Reference Value for BCM ..................57
Terminal and Reference Value for Unified Meter
and A/C Amp. ...................................................... ....
59
Terminal and Reference Value for Combination
Meter .......................................................................
59
CONSULT-III Function (METER/M&A) ....................60
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DI-26
< SERVICE INFORMATION >
UNIFIED METER AND A/C AMP
UNIFIED METER AND A/C AMP
System DescriptionINFOID:0000000001328456
 For the unified meter and A/C amp., the signal required for controlling the combination meter are integrated
in the A/C auto amp.
 The unified meter and A/C amp. corresponds to a CONS ULT-III function (self-diagnosis results, CAN diag-
nosis support monitor, data monitor).
COMBINATION METER CONTROL FUNCTION
 Unified meter and A/C amp. receives necessary information for combination meter from each unit by CAN communication.
 Unified meter and A/C amp. transmits a signals with communication line (TX, RX) between unified meter and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-5, "
Sys-
tem Description".
A/C AUTO AMP. FUNCTION
Unified meter and A/C amp. controls each operation for A/C auto amp. Regarding A/C control, refer to AT C -
24, "Description of Air Conditioner LAN Control System" in ATC section.
OTHER FUNCTIONS
Drive Computer Function
The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C
amp., converted into data, and transmitted to the disp lay unit (without NAVI) and display control unit (with
NAVI) using CAN communication.
Signal Buffer Function
Unified meter and A/C amp. transmits each signal to other units with CAN communication.
Unit Input Output
Unified meter and A/C amp.  Seat belt buckle switch signal (Driver's side)
 Parking brake signal
 Illumination control nighttime required signal
 Refuel status signal
 Low-fuel warning lamp condition signal
 Combination meter receive error signal
 Delivery destination data signal
 Combination meter specifications signal  Vehicle speed signal (8-pulse)
 Engine speed signal
 Engine coolant temperature signal
 Fuel level sensor signal (resistance value)
 Malfunction indicator lamp signal
 ABS warning lamp signal
 Low tire pressure warning lamp signal
 Run-flat tire wa
rning lamp signal
 Brake warning lamp signal
 A/T CHECK warning lamp signal
 ICC warning lamp signal
 Oil pressure switch signal
 Door switch signal
 AWD warning lamp signal
 Key warning lamp signal
 VDC OFF indicator lamp signal
 SLIP indicator lamp signal
 CRUISE indicator lamp signal
 SET indicator lamp signal
 High beam request signal
 Turn indicator signal
 Snow mode switch signal
 ICC system display signal
 Shift position indicator signal
 Manual mode indicator signal
 Manual mode gear position signal
 CAN communication condition signal of A/T
 Position lights request signal
 Buzzer output signal
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

REAR VIEW MONITORDI-109
< SERVICE INFORMATION >
C
DE
F
G H
I
J
L
M A
B
DI
N
O P
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-116, "
Wiring Diagram - BACK/L -" in LT section.
2.CHECK REVERSE POSITION INPUT SIGNAL
With CONSULT-III
1. Select “Data Monitor” of “REARVIEW CAMERA”.
2. Operate ignition switch with “R POSI SIG” of “Data Monitor” and check operate status.
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Turn ignition switch ON.
4. Shift A/T selector lever to R position.
5. Check voltage between rear view camera control unit harness
connector M48 terminal 4 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness between rear view camera control unit and back-up lamp relay.
3.CHECK DISPLAY CONTROL UNIT OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit connector.
3. Turn ignition switch ON.
4. Check voltage between rear view camera control unit harness connector M48 terminal 5 and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.CHECK DISPLAY CO NTROL UNIT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect display control unit connector.
3. Check continuity between rear view camera control unit harness connector M48 terminal 5 and display control unit harness con-
nector M75 terminal 8.
4. Check continuity between rear view camera control unit harness connector M48 terminal 5 and ground.
OK or NG
OK >> Replace display control unit.
NG >> Repair harness or connector.
5.CHECK CONTROL 1 SIGNAL
1. Turn ignition switch OFF.
2. Connect rear view camera control unit connector. 4 – Ground : Battery voltage
SKIA5086E
5 – Ground : Approx. 5 V
SKIA7148E
5 – 8 : Continuity should exist.
5 – Ground : Continuity should not exist.
SKIA7149E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C