2007 INFINITI FX35 lock

TROUBLE DIAGNOSIS ATC-63
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AT C
Revision: 2006 July 2007 FX35/FX45
Potentio Temperature Control (PTC)
The PTC is built into the A/C and AV switch. It can be set at an inter-
val of 0.5 °C (1.0 °F) in the 18 °C (60 °F) to 32 °C (90 °F) temperature
range by pressing temperature control switch. The set temperature
is displayed.
DIAGNOSIS PROCEDURE FOR A/C SYSTEM
SYMPTOM: A/C system does not come on.
1. CHECK POWER SUPPLY CIRCUIT FOR UNIFIED METER AND A/C AMP.
1. Disconnect unified meter and A/C amp. connector.
2. Check voltage between unified meter and A/C amp. harness connector M56 terminals 21, 22 and 35, unified meter and A/C
amp. harness connector M57 terminal 46 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check 10A and 15A fuses [Nos. 6, 10, 11, 12 and 19, located in the fuse block (J/B)]. Refer to PG-
80, "FUSE BLOCK - JUNCTION BOX (J/B)" .

If fuses are OK, check harness for open circuit. Repair or replace if necessary.

If fuses are NG, check harness for short circuit and replace fuse.
SJIA1583E
RJIA1983E
Terminals Ignition switch position
(+)
( − )OFFACC ON
Unified
meter and
A/C amp.
connector Terminal No.
M56 21
Ground Battery
voltage Battery
voltage Battery
voltage
M56 22 Approx. 0 V Approx. 0 V Battery
voltage
M56 35 Approx. 0 V Battery
voltage Battery
voltage
M57 46 Approx. 0 V Battery
voltage Battery
voltage
RJIA1984E

ATC-80
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
1. CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector M78 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fuses [Nos. 10 and 11, located in the fuse block (J/B)]. Refer to PG-80,
"FUSE BLOCK - JUNCTION BOX (J/B)" .

If fuses are OK, check harness for open circuit. Repair or replace if necessary.

If fuses are NG, check harness for short circuit and replace fuse.
2. CHECK BLOWER MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between blower motor harness connector M78 terminal 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK CIRCUIT CONTINUITY BETWEEN BLOWER MOTOR AND UNIFIED METER AND A/C AMP.
1. Disconnect unified meter and A/C amp. connector.
2. Check continuity between blower motor harness connector M78 terminal 2 and unified meter and A/C amp. harness connector
M57 terminal 53.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector. 1 – Ground : Battery voltage
RJIA1997E
3 – Ground : Continuity should exist.
RJIA1998E
2 – 53 : Continuity should exist.
RJIA1999E

TROUBLE DIAGNOSIS ATC-97
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Revision: 2006 July 2007 FX35/FX45
Low-pressure Side Sometimes Becomes Negative
Low-pressure Side Becomes Negative
DIAGNOSIS PROCEDURE FOR INSUFFICIENT COOLING
SYMPTOM: Insufficient cooling
1. CHECK POWER SUPPLY FOR ECV (ELECTRONIC CONTROL VALVE)
1. Disconnect compressor (ECV) connector.
2. Turn ignition switch ON.
3. Check voltage between compressor (ECV) harness connector F6 terminal 2 and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 10A fuse [No. 12, located in the fuse block (J/B)]. Refer to PG-80, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .

If fuse is OK, check harness for open circuit. Repair or replace if necessary.

If fuse is NG, check harness for short circuit and replace fuse.
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.

Air conditioning system
does not function and does
not cyclically cool the com-
partment air.

The system constantly func-
tions for a certain period of
time after compressor is
stopped and restarted. Refrigerant does not dis-
charge cyclically.
↓
Moisture is frozen at expan-
sion valve outlet and inlet.
↓
Water is mixed with refriger-
ant.

Drain water from refrigerant
or replace refrigerant.

Replace liquid tank.
AC354A
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side becomes nega-
tive.
Liquid tank or front/rear side of
expansion valve’s pipe is
frosted or wet with dew. High-pressure side is closed
and refrigerant does not flow.
↓
Expansion valve or liquid tank
is frosted. Leave the system at rest until
no frost is present. Start it
again to check whether or not
the malfunction is caused by
water or foreign particles.

If water is the cause, initially
cooling is okay. Then the
water freezes causing a
blockage. Drain water from
refrigerant or replace refrig-
erant.

If due to foreign particles,
remove expansion valve
and remove the particles
with dry and compressed air
(not shop air).

If either of the above meth-
ods cannot correct the mal-
function, replace expansion
valve.

Replace liquid tank.

Check lubricant for contami-
nation.
AC362A
2 – ground : Battery voltage
RJIA2294E

TROUBLE DIAGNOSIS ATC-103
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Revision: 2006 July 2007 FX35/FX45
Ambient Sensor CircuitNJS000EF
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is attached on the hood lock stay. It detects
ambient temperature and converts it into a resistance value which is
then input into the unified meter and A/C amp.
AMBIENT TEMPERATURE INPUT PROCESS
The unified meter and A/C amp. includes a processing circuit for the ambient sensor input. However, when the
temperature detected by the ambient sensor increases quickly, the processing circuit retards the unified meter
and A/C amp. function. It only allows the unified meter and A/C amp. to recognize an ambient temperature
increase of 0.33 °C (0.6 °F) per 100 seconds.
As an example, consider stopping for a few minutes after high speed driving. Although the actual ambient tem-
perature has not changed, the temperature detected by the ambient sensor will increase. This is because the
heat from the engine compartment can radiate to the front grille area, location of the ambient sensor.
DIAGNOSIS PROCEDURE FOR AMBIENT SENSOR
SYMPTOM: Ambient sensor circuit is open or shorted. (21 or −21 is
indicated on unified meter and A/C amp. as a result of performing
self-diagnosis STEP-2.)
1. CHECK VOLTAGE BETWEEN AMBIENT SENSOR AND GROUND
1. Disconnect ambient sensor connector.
2. Turn ignition switch ON.
3. Check voltage between ambient sensor harness connector E34 terminal 1 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 4.
RJIA2016E
RJIA1461E
1 – Ground : Approx. 5 V
RJIA2017E

ATC-160
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2006 July 2007 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
CompressorNJS000FI
LubricantNJS000FJ
RefrigerantNJS000FK
Engine Idling SpeedNJS000FL
Refer to EC-675, "Idle Speed and Ignition Timing" (VQ35DE) or EC-1366, "Idle Speed and Ignition Timing"
(VK45DE).
Belt TensionNJS000FM
Refer to EM-15, "DRIVE BELTS" (VQ35DE) or EM-174, "DRIVE BELTS" (VK45DE).
Model Calsonic Kansei make CWV-618
Ty p e V-6 variable displacement
Displacement
cm
3 (cu in)/rev Max. 184 (11.228)
Min. 14.5 (0.885)
Cylinder bore × stroke
mm (in) 37 (1.46)
× [2.3 - 28.6 (0.091 - 1.126)]
Direction of rotation Clockwise (viewed from drive end)
Drive belt Poly V
ModelCalsonic Kansei make CWV-618
Name Nissan A/C System Oil Type S (DH-PS)
Capacity
m (US fl oz, lmp fl oz) Total in system 180 (6.0, 6.3)
Compressor (Service part) charg-
ing amount 180 (6.0, 6.3)
Ty p e
HFC-134a (R-134a)
Capacity
kg (lb) 0.55 (1.21)

AV-1
AUDIO VISUAL, NAVIGATION & TELEPHONE SYS- TEM
K ELECTRICAL
CONTENTS
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SECTION
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AV
Revision: 2006 July 2007 FX35/FX45
AUDIO VISUAL, NAVIGATION & TELEPHONE SYSTEM
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 4
PREPARATION ...................................................... ..... 5
Commercial Service Tools ................................... ..... 5
AUDIO .................................................................... ..... 6
System Description ............................................. ..... 6
AUDIO SYSTEM .............................................. ..... 6
SPEED SENSITIVE VOLUME SYSTEM ......... ..... 7
Component Parts Location .................................. ..... 7
Schematic — AUDIO — / With Navigation System ..... 8
Wiring Diagram — AUDIO — / With Navigation Sys-
tem ...................................................................... ..... 9
Schematic — AUDIO — Without Navigation System ... 19
Wiring Diagram — AUDIO — / Without Navigation
System ................................................................ ... 20
Terminals and Reference Value for Audio Unit .... ... 29
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
Terminals and Reference Value for Satellite Radio
Tuner ................................................................... ... 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 ............................................... ... 36
Power Supply Circuit Inspection ......................... ... 37
Audio Steering Wheel Switch Inspection ............. ... 38
A/C and AV Switch Inspection ............................. ... 40
BOSE Speaker Amp. Inspection ......................... ... 40
Vehicle Speed Signal Inspection ......................... ... 41
Locking CD Auto-Changer Mechanism ............... ... 42
DAMPER LOCK PROCEDURE ....................... ... 42
Removal and Installation of Audio Unit ............... ... 43
REMOVAL ........................................................ ... 43
INSTALLATION ................................................ ... 43 Disassembly and Assembly for Audio Unit ..........
... 43
DISASSEMBLY ................................................ ... 43
ASSEMBLY ...................................................... ... 43
Removal and Installation for A/C and AV Switch . ... 44
REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Front Door Speaker ... 44
REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Rear Door Speaker ... 44 REMOVAL ........................................................ ... 44
INSTALLATION ................................................ ... 44
Removal and Installation for Instrument Speaker ... 45 REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for Tweeter .................. ... 45
REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for Woofer (BOSE Sys-
tem) ..................................................................... ... 45
REMOVAL ........................................................ ... 45
INSTALLATION ................................................ ... 45
Removal and Installation for BOSE Speaker Amp. ... 46
REMOVAL ........................................................ ... 46
INSTALLATION ................................................ ... 46
Removal and Installation of Satellite Radio Tuner ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
Removal and Installation of Satellite Radio Antenna ... 47
REMOVAL ........................................................ ... 47
INSTALLATION ................................................ ... 47
ANTENNA .............................................................. ... 48
System Description .............................................. ... 48
Wiring Diagram — M/ANT — .............................. ... 49
Terminals and Reference Value for Audio Unit .... ... 50
Antenna Amp. Inspection .................................... ... 50
Location of Antenna ............................................. ... 51
RADIO ANTENNA AND GPS ANTENNA ......... ... 51
SATELLITE RADIO ANTENNA ........................ ... 51
Window Antenna Repair ...................................... ... 52

AV-6
AUDIO
Revision: 2006 July 2007 FX35/FX45
AUDIOPFP:28111
System DescriptionNKS003AI
AUDIO SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times

through 15A fuse (No. 32, located in the fuse and fusible link block)

to audio unit terminal 6

to A/C and AV switch terminal 1

to display control unit terminal 1

to woofer terminal 1

to satellite radio tuner terminal 12 (With satellite radio) and

to option connector–2 for satellite radio tuner terminal 12 (Without satellite radio),

through 20A fuse [No.17, located in the fuse block (J/B)]

to BOSE speaker amp. terminal 1.
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in the fuse block (J/B)]

to audio unit terminal 10

to A/C and AV switch terminal 2

to display control unit terminal 10

to satellite radio tuner terminal 16 (With satellite radio) and

to option connector–2 for satellite radio tuner terminal 11 (Without satellite radio).
Ground is supplied through the case of the audio unit.
Ground is also supplied

to BOSE speaker amp. terminal 17

to woofer terminal 2

to satellite radio tuner terminal 15 (With satellite radio) and

to option connector–2 for satellite radio receiver terminal 10 (Without satellite radio)

through body ground B203 and B210,

to A/C and AV switch terminal 5

to display control unit terminals 3,13 and

to display terminal 1

through body ground M35, M45 and M85.
Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.
When A/C and audio controller is pressed to audio switch, it sends audio signal to audio unit. Then audio sig-
nals are supplied

through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16

to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.
Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied

through BOSE speaker amp. terminals 2, 3, 4, 9,10,11,12, 13, 14, 15, 16, 18, 19 and 20

to terminals 1 and 2 of front door speaker LH and RH

to terminals 1 and 2 of rear door speaker LH and RH

to terminals 1 and 2 of tweeter LH and RH

to terminals 1 and 2 of instrument speaker LH, RH, and CENTER, and

to terminals 7 and 8 of woofer.
When one of audio steering wheel switch is pressed to ON (With telephone system), mode ON (Without
telephone system), seek up, or volume up, resistance in steering switch circuit changes depending on which
button is pressed.

AV-36
AUDIO
Revision: 2006 July 2007 FX35/FX45
Trouble DiagnosisNKS003LC

The majority of the audio malfunctions are the result of outside causes (bad CD, electromagnetic interfer-
ence, etc.). Check the symptoms below to diagnose the malfunction.

The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction-
ing. Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and
operation of each piece of electrical equipment, and then determine the cause.

Make sure that other operation except audio system can be performed with A/C and AV switch. If these
operations are inoperative with A/C and AV switch, refer to AV- 8 4 , "
Unable to Operate System with A/C
and AV Switch" (Without navigation system), or AV- 1 3 9 , "Unable to Operate System with A/C and AV
Switch" (With navigation system).

Refer to "SERVICE BULLETIN ITB04-055" for the diagnosis of satellite radio.
NOTE:
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise
from trains and other sources. It is not a malfunction.

Fading noise: This noise occurs because of variations in the field strength in a narrow range due to moun-
tains or buildings blocking the signal.

Multi-path noise: This noise results from a time difference between the broadcast waves directly from the
station arriving at the antenna and the waves reflected by mountains or buildings.
Symptom Possible malfunction location
Audio system does not work properly.

Audio unit power supply circuit

Communication signal circuit between audio unit and display control unit

A/C and AV switch

Audio unit
No sound can be heard from all speakers.

BOSE speaker amp. power supply and ground circuit

BOSE speaker amp. ON signal circuit

Audio unit

BOSE speaker amp.
No sound can be heard from one or several speakers.

Audio signal circuit between audio unit and BOSE speaker amp.

Audio signal circuit between BOSE speaker amp. and speaker

Speaker

Tw e e te r

Audio unit

BOSE speaker amp.
No sound can be heard from woofer.

Audio signal circuit between BOSE speaker amp. and woofer

Woofer

BOSE speaker amp.
No sound can be heard from radio or noise is caught.

Antenna amp. ON signal circuit

Antenna feeder

Roof antenna

Antenna amp.

Audio unit
Audio steering switch does not operate properly.

Remote control signal circuit between audio steering switch and A/C and
AV switch

Audio steering switch

Spiral cable

TEL adapter unit (With telephone system)

A/C and AV switch