2004 INFINITI FX35 Steering

ACS-40
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMSPFP:00000
Diagnostic Trouble Code (DTC) ChartAKS006YW
×:Applicable
DTC
No.CONSULT-II screen termsICC sys-
tem
warning
lampFail-safe
Malfunctions detected where...Refer-
ence
page Ve h ic le -
to-vehi-
cle dis-
tance
control
modeConven-
tional
(fixed
speed)
cruise
control
modeBrake
assist
(with pre-
view
function)
11 CONTROL UNIT××××

ICC unit internal malfunctionACS-41
20 CAN COMM CIRCUIT××××
ICC unit detected CAN communi-
cation malfunction.ACS-41
31 POWER SUPPLY CIR××××
ICC unit power supply voltage is
excessively low. (less than 8V)ACS-42
34 POWER SUPPLY CIR2××××
ICC unit power supply voltage is
excessively high.ACS-42
41 VHCL SPEED SE CIRC××××

Wheel sensor malfunction.

ABS actuator and electric unit
(control unit) malfunction

AT vehicle speed sensor mal-
function

TCM malfunctionACS-42
43 ABS/TCS/VDC CIRC××××
VDC/TCS/ABS system malfunc-
tionACS-43
45 BRAKE SW/ STOP L SW××××

Brake and stop lamp switch har-
ness is open or shorted.

Brake and stop lamp switch is
ON or stuck to OFF.

Brake and stop lamp switch is
stuck to ON.ACS-43
46 OPERATION SW CIRC×××

ICC steering switch harness or
spiral cable is open or shorted.

ICC steering switch malfunctionACS-45
61 PRESS SEN CIRCUIT×× ×

Brake pressure sensor harness is
open or shorted.

Brake pressure sensor malfunc-
tion

Brake pressure sensor input cir-
cuit malfunctionACS-46
62 BOOSTER SOL/V CIRCUIT×× ×

Solenoid harness is open or
shorted.

Solenoid is open.

Solenoid drive circuit malfunctionACS-47
63 RELEASE SW CIRCUIT××××

Release switch harness is open
or shorted.

Release switch malfunction

Release switch input circuit mal-
functionACS-48
65 PRESSURE CONTROL×× ×
Booster malfunctionACS-49
74 LASER BEAM OFF CNTR×× ×
Laser beam of ICC sensor is off
the aiming point.ACS-49

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
ACS-45
[ICC]
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ACS
Revision: 2004 November 2004 FX35/FX45
7. CHECK ICC BRAKE HOLD RELAY CIRCUIT
1. Disconnect connectors of ICC unit and stop lamp switch.
2. Check continuity between ICC unit harness connector M89 ter-
minal 38 (P/G) and ICC brake hold relay harness connector E14
terminal 7 (P).
3. Check continuity between ICC unit harness connector M89 ter-
minal 38 (P/G) and stop lamp switch harness connector E210
terminal 2 (P).
OK or NG
OK >> Replace ICC unit. Erase DTC and perform ICC system
running test. Then perform self-diagnosis of ICC system again.
NG >>

Repair harness between ICC unit and ICC brake hold relay.

After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of
ICC system again.
DTC 46 OPERATION SW CIRCAKS007I0
1. CHECK CONNECTOR FOR ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector, and connect it securely again. Then erase DTC. After that, perform self-diag-
nosis of ICC system again.
OK or NG
OK >>
Poor connector connection.

Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.) After repair, erase DTC, and per-
form ICC system running test. Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2. CHECK ICC STEERING SWITCH

Check ICC steering switch, refer to ACS-65, "ICC Steering Switch" .
OK or NG
OK >> GO TO 3.
NG >> Replace ICC steering switch (steering wheel assembly). Erase DTC and perform ICC system run-
ning test. Then perform self-diagnosis of ICC system again. Continuity should exist.
Continuity should exist.
SKIA5977E

ACS-46
[ICC]
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Revision: 2004 November 2004 FX35/FX45
3. CHECK ICC STEERING SWITCH SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect connectors of ECM and spiral cable.
3. Check continuity between ECM harness connector M90 terminal
82 (B/W), 99 (G/Y) and spiral cable M15 terminal 33 (B/W), 34
(G/Y).
4. Check continuity between spiral cable (on vehicle) harness con-
nector M15 terminal 33, 34 and spiral cable (on switch) harness
connector M203 terminal 14,15.
OK or NG
OK >> Replace ECM. Erase DTC and perform ICC system run-
ning test. Then perform self-diagnosis of ICC system
again.
NG >>

Repair harness between ICC unit and spiral cable.

After repair, erase DTC and perform ICC system run-
ning test. Then, perform self-diagnosis of ICC system
again.
DTC 61 PRESS SEN CIRCUITAKS006Z5
1. CHECK CONNECTOR BRAKE PRESSURE SENSOR AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect connectors of brake pressure sensor and ICC unit, and connect them securely again. Then
erase DTC. After that, perform self-diagnosis of ICC system again.
OK or NG
OK >>
Poor connector connection.

Check connector. (Check connector housing for disconnected, loose, bent, and collapsed ter-
minals. If any malfunction is detected, repair applicable part.) After repair, Erase DTC, and per-
form ICC system running test. Then perform self-diagnosis of ICC system again.
NG >> GO TO 2.
2. CHECK HARNESS BETWEEN BRAKE PRESSURE SENSOR AND ICC UNIT
1. Turn ignition switch OFF.
2. Disconnect connectors of ICC unit and brake pressure sensor.
3. Check continuity between ICC unit harness connector M88 ter-
minal 8 (Y/G), 17 (BR), 24 (Y/R) and brake pressure sensor har-
ness connector E142 terminal 3 (Y/G), 2 (OR), 1 (Y/R).
OK or NG
OK >> GO TO 3.
NG >>

Repair harness between brake pressure sensor and
ICC unit.

After repair, erase DTC and perform ICC system running test. Then, perform self-diagnosis of
ICC system again. 82 - 33, 99 - 34 Continuity should exist.
SKIA5978E
34 - 14, 33 - 15 Continuity should exist.
SKIA5979E
8 - 3, 17 - 2, 24 - 1 Continuity should exist.
SKIA6652E

ELECTRICAL COMPONENT INSPECTION
ACS-65
[ICC]
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Revision: 2004 November 2004 FX35/FX45
ELECTRICAL COMPONENT INSPECTIONPFP:00000
ICC Steering SwitchAKS006ZX
1. Disconnect ICC steering switch.
2. Check resistance between M203 terminals 14 and 15 by
depressing each switch.
ICC Brake Switch and Stop Lamp SwitchAKS006ZY
Check each switch after adjusting brake pedal, refer to BR-6,
"BRAKE PEDAL" .
Booster SolenoidAKS006ZZ
Disconnect booster solenoid/release switch connector, and check
resistance value between terminals 4 and 6.
Switch Condition Resistance [Ω]
ON/OFF Depressed Approx. 0
Released Approx. 5,456
DISTANCE Depressed Approx. 741
Released Approx. 5,456
ACCEL/RES Depressed Approx. 2,586
Released Approx. 5,456
COAST/SET Depressed Approx. 1,406
Released Approx. 5,456
CANCEL Depressed Approx. 309
Released Approx. 5,456
SKIA5983E
Continuity
ICC brake switch Stop lamp switch
When brake pedal is depressed No Yes
When brake pedal is released Yes No
SKIA5984E
4 - 6 :Approx. 1.4Ω
SKIA1255E

REMOVAL AND INSTALLATION
ACS-67
[ICC]
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Revision: 2004 November 2004 FX35/FX45
REMOVAL AND INSTALLATIONPFP:00000
ICC UnitAKS00704
ICC SensorAKS00705
CAUTION:
Adjust the laser beam aiming every time the ICC sensor is removed or installed.
ICC Steering SwitchAKS00707
Replace ICC steering switch as steering wheel assembly. Refer to PS-11, "Removal and Installation" .
SKIA5985E
SKIA5986E

HEATER & COOLING UNIT ASSEMBLY
ATC-127
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Revision: 2004 November 2004 FX35/FX45
12. Remove mounting bolts from heater & cooling unit.
13. Disconnect drain hose.
14. Remove ventilator ducts, defroster nozzle and ducts.
15. Remove steering member mounting bolts, nut and harness clips.
16. Remove the steering member, and then remove heater & cooling unit.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new one, then apply compressor oil to it when installing it.

Connection point for female-side piping is thin. So, when inserting male-side piping, take care not
to deform female-side piping. Slowly insert in axial direction.

Insert one-touch joint connection point securely until it clicks.

After piping has been connected, pull male-side piping by hand to make sure piping does not
come off.

When recharging refrigerant, check for leaks.
NOTE:

When filling radiator with coolant, refer to CO-11, "Changing Engine Coolant" (VQ35DE) or CO-36,
"Changing Engine Coolant" (VK45DE).

Recharge the refrigerant.
RJIA2044E
RJIA2043E
Heater & cooling unit mounting bolt
Tightening torque : 6.8 N·m (0.69 kg-m, 60 in - lb)
Steering member mounting nut and bolt
Tightening torque : 12 N·m (1.2 kg-m, 9 ft - lb)

REFRIGERANT LINES
ATC-153
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Revision: 2004 November 2004 FX35/FX45
Removal and Installation of Liquid TankAJS0015Y
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove front grille. Refer to EI-23, "
FRONT GRILLE" .
3. Clean liquid tank and its surrounding area, and remove dirt and rust from tank.
CAUTION:
Be sure to clean carefully.
4. Remove mounting bolts for liquid tank and power steering oil cooler.
5. Lift liquid tank upwards. Remove bracket from protruding part of
condenser.
6. Slide liquid tank upward, and then remove liquid tank.
INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:

Make sure liquid tank bracket is securely installed at protru-
sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)

Replace O-rings for A/C piping with new ones, then apply
compressor oil to it when installing it.

When recharging refrigerant, check for leaks.Bolts mounting low-pressure pipe 1 bracket and low-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2074E
RJIA0672E
RJIA0673E

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS-
TEM
K ELECTRICAL
CONTENTS
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SECTION AV
A
B
AV
Revision: 2004 November 2004 FX35/FX45
AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Wiring Diagrams and Trouble Diagnosis .................. 5
PREPARATION ........................................................... 6
Commercial Service Tools ........................................ 6
AUDIO ......................................................................... 7
System Description .................................................. 7
BASE SYSTEM ..................................................... 7
BOSE SYSTEM .................................................... 7
SPEED SENSITIVE VOLUME SYSTEM .............. 8
Component Parts and Harness Connector Location ..... 9
Schematic -Base System- ...................................... 10
WITH NAVIGATION SYSTEM ............................. 10
WITHOUT NAVIGATION SYSTEM ...................... 11
Wiring Diagram -AUDIO- / Base System ............... 12
Schematic -BOSE System- .................................... 19
WITH NAVIGATION SYSTEM ............................. 19
WITHOUT NAVIGATION SYSTEM ..................... 20
Wiring Diagram -AUDIO- / BOSE System .............. 21
Terminals and Reference Value for Audio Unit ....... 30
Terminals and Reference Value for BOSE Speaker
Amp. ....................................................................... 31
Terminals and Reference Value for A/C and AV
Switch ..................................................................... 33
Terminals and Reference Value for Woofer ............ 34
A/C and AV Switch Self-Diagnosis Function .......... 35
STARTING THE SELF-DIAGNOSIS MODE ....... 35
DIAGNOSIS FUNCTION ..................................... 35
EXITING THE SELF-DIAGNOSIS MODE ........... 35
Trouble Diagnosis .................................................. 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BASE SYSTEM) ................................................ 35
MALFUNCTION WITH RADIO, TAPE AND CD
(BOSE SYSTEM) ................................................ 36
FOR RADIO ONLY .............................................. 37
FOR CASSETTE PLAYER ONLY ....................... 37
FOR CD ONLY .................................................... 37
Noise Inspection ..................................................... 38TYPE OF NOISE AND POSSIBLE CAUSE ........ 38
Power Supply Circuit Inspection ............................. 39
Audio Steering Wheel Switch Inspection ................ 40
A/C and AV Switch Inspection ................................ 41
BOSE Speaker Amp. Inspection ............................ 42
Vehicle Speed Signal Inspection ............................ 42
Locking CD Auto-changer Mechanism ................... 44
DAMPER LOCK PROCEDURE .......................... 44
Removal and Installation of Audio Unit ................... 44
REMOVAL ........................................................... 44
INSTALLATION ................................................... 44
Disassembly and Assembly for Audio Unit ............. 45
DISASSEMBLY ................................................... 45
ASSEMBLY ......................................................... 45
Removal and Installation for A/C and AV Switch .... 45
REMOVAL ........................................................... 45
INSTALLATION ................................................... 46
Removal and Installation for Front Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Rear Door Speaker ... 46
REMOVAL ........................................................... 46
INSTALLATION ................................................... 46
Removal and Installation for Instrument Speaker ... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Tweeter ..................... 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for Woofer (BOSE Sys-
tem) ........................................................................ 47
REMOVAL ........................................................... 47
INSTALLATION ................................................... 47
Removal and Installation for BOSE Speaker Amp. ... 48
REMOVAL ........................................................... 48
INSTALLATION ................................................... 48
AUDIO ANTENNA .................................................... 49
System Description ................................................. 49
Wiring Diagram — M/ANT — ................................. 50
Terminals and Reference Value for Audio Unit ....... 51