2004 INFINITI FX35 bat fl

AIR MIX DOOR MOTOR
ATC-131
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Revision: 2004 November 2004 FX35/FX45
AIR MIX DOOR MOTOR PFP:27732
Removal and InstallationAJS0015M
REMOVAL
Driver Side
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Remove instrument lower driver panel. Refer to IP-11, "
Removal and Installation" .
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
Passenger Side
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Remove blower unit. Refer to ATC-121, "
BLOWER UNIT" .
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0956E
RJIA0955E

REFRIGERANT LINES
ATC-151
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Revision: 2004 November 2004 FX35/FX45
6. Disconnect one-touch joint between high-pressure pipe 1 and 2.
a. Set a disconnector (92530-89908) on A/C piping.
b. Slide a disconnector toward vehicle rear until it clicks.
c. Slide A/C piping toward vehicle rear and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
7. Remove high-pressure pipe 1.
8. Disconnect one-touch joint between high-pressure pipe 2 and 3.
a. Set a disconnector (92530-89908) on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
9. Remove the high-pressure pipe 2.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace the O-ring of the high-pressure pipe with a 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.
Removal and Installation of Low-pressure Pipe 2 and High-pressure Pipe 3AJS001BI
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to EI-24, "
COWL TOP" .
4. Remove mounting bolts for low-pressure pipe 1 bracket and low-
pressure flexible hose bracket.
RJIA2072E
RJIA2073E
RJIA2068E

REFRIGERANT LINES
ATC-155
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Revision: 2004 November 2004 FX35/FX45

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.
Removal and Installation of Refrigerant Pressure SensorAJS00160
REMOVAL
1. Remove condenser. Refer to ATC-154, "Removal and Installa-
tion of Condenser" .
2. Remove refrigerant pressure sensor from condenser.
CAUTION:
When working, be careful not to damage the condenser
fins.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to the O-ring of the refrigerant pressure sensor when installing it.
Removal and Installation of EvaporatorAJS001BJ
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-151, "
Removal and Installation of
Low-pressure Pipe 2 and High-pressure Pipe 3" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
4. Slide evaporator, and then remove it from heater & cooling unit.
5. Remove intake sensor from evaporator, and then remove evap-
orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings for A/C piping with new ones, 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.

The O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

Mark the mounting position of the intake sensor bracket. Bolt mounting the high-pressure flexible hose bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA2076E
RJIA0928E

ATC-156
REFRIGERANT LINES
Revision: 2004 November 2004 FX35/FX45

When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveAJS001BK
REMOVAL
1. Set the temperature at 18°C (60°F), and then disconnect the battery negative cable.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove evaporator. Refer to ATC-155, "
Removal and Installation of Evaporator" .
4. Remove mounting bolts for expansion valve, and then remove
expansion valve.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings with new ones, then apply compressor oil to them when installing them.

The O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

When recharging refrigerant, check for leaks.Bolt mounting low-pressure pipe 1 bracket
Tightening torque : 5.5 N·m (0.56 kg-m, 49 in-lb)
RJIA1864E
Bolts mounting expansion valve
Tightening torque : 3.9N·m (0.4 kg-m, 35 in-lb)

AV-30
AUDIO
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for Audio UnitAKS00BMN
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of symp-
tom
+–Ignition
switchOperation
2 (W)
*1 ,
(L)*21 (B)*1 ,
(B/W)*2
Audio sound
signal front
LHOutput ON
Receive audio
signalNo sound from
front door speaker
LH and instru-
ment speaker LH.
4 (G)*
1 ,
(G/B)*23 (R)*1 ,
(B/R)*2
Audio sound
signal front
RHOutput ONNo sound from
front door speaker
RH and instrument
speaker RH.
5 (R/W) GroundAntenna
signalOutput ON – Approx. 12VAntenna amp.
does not work
properly.
6 (W/L) GroundBattery
power sup-
plyInput OFF – Battery voltageSystem will not
work properly.
9*
1– Shield – ON – Approx.0V –
10
(LG/R)GroundACC power
supplyInput ACC – Battery voltageSystem does not
work properly.
11 *
1– Shield – ON – Approx.0V –
12*
3
(G/W)GroundAmp ON sig-
nalOutput ON – Approx. 12VBOSE speaker
amp. does not
work properly.
14
(BR)*
1 ,
(L/W)*2
13 (Y)*1 ,
(B/Y)*2
Audio sound
signal rear
LHOutput ON
Receive audio
signalNo sound from
rear door speaker
LH.
16 (L)*
1 ,
(R/G)*215 (P)*1 ,
(L/B)*2
Audio sound
signal rear
RHOutput ONNo sound from
rear door speaker
RH.
21
(B/Y)GroundAudio TX
signal (AUD
- DCU) Output ONOperate audio
volumeAudio does not
operate properly.
22
(W/L)GroundVehicle
speed signal
(2 pulse)Input ONWhen vehicle
speed is
approx. 40
km/h (25MPH)Speed sensitive
volume system
dose not work
properly.
23 (LG) GroundAudio RX
signal (DCU
- AUD)Input ONOperate audio
volumeAudio does not
operate properly.
25 – Shield – ON – Approx.0V –
SKIA0177E
SKIA0177E
SKIA4402E
ELF1080D
SKIA4403E

AUDIO
AV-31
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AV
Revision: 2004 November 2004 FX35/FX45
*1: BOSE system and with VQ engine or with sunroof, ICC system, Navigation system or DVD player
*2: Except for above
*3: BOSE system only
Terminals and Reference Value for BOSE Speaker Amp.AKS00BMO
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference valueExample of
symptom
+–Igni-
tion
switchOperation
1 (R) GroundBattery power
supply Input OFF – Battery voltageSystem does not
work properly.
9 (LG) 10 (B/Y)Audio sound
signal rear LHOutput ON
Receive audio
signalNo sound from
rear door speaker
LH.
11 (OR) 12 (B/P)Audio sound
signal rear RHOutput ONNo sound from
rear door speaker
RH.
13 (L) 14 (B/W)Audio sound
signal front LHOutput ON
Receive audio
signalNo sound from
front door
speaker LH and
instrument
speaker LH.
15 (BR) 16 (B/R)Audio sound
signal front RHOutput ONNo sound from
front door
speaker RH and
instrument
speaker RH.
17 (B) GroundGround
(Power)– ON – Approx. 0VBOSE speaker
amp. dose not
work properly.
18
(R/L)2 (B)Audio sound
signal (Instru-
ment CEN-
TER)Output ONReceive audio
signalNo sound from
instrument
speaker CEN-
TER.
19 (W) 3 (B) Woofer signal Output ONReceive audio
signalNo sound from
woofer.
20 (G) 4 (G/W) Tweeter signal Output ONReceive audio
signalNo sound from
tweeter.
22 (P) GroundAmp ON sig-
nal (woofer)Output ON – Approx. 12VWoofer does not
work properly.
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E
SKIA0177E

AUDIO
AV-33
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AV
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for A/C and AV SwitchAKS00A2B
Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
Vo l ta g eExample of
symptom
+–Igni-
tion
switchOperation
1 (W/L) GroundBattery power
supply Input OFF – Battery voltageSystem does not
work properly.
2 (LG/R) GroundACC power-
supplyInput ACC – Battery voltageSystem does not
work properly.
3 (R/L) GroundIllumination
signal Input OFFLighting switch is
ONApprox. 12VA/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON. Lighting switch is
OFFApprox. 0V
4 (R/Y) GroundIllumination
control signalOutput ONIllumination control
switch is operated
by lighting switch in
1st or 2nd position.Changes between approx.0V
and approx.12VA/C and AV
switch illumina-
tion does not
come on when
lighting switch is
ON.
5 (B) Ground Ground – ON – Approx. 0V –
6 (B/R) GroundCommunica-
tion signal (+)Input/
OutputON –System does not
work properly.
7–Shield
ground –– – – –
8 (W/R) GroundCommunica-
tion signal (–)Input/
OutputON –System does not
work properly.
12 (R/G) GroundRemote con-
troller AInput ONPress MODE switch. Approx. 0V
Steering wheel
audio controls
do not function. Press SEEK UP
switch.Approx. 1.7V
Press VOL UP
switch.Approx. 3.3V
Except for above Approx. 5V
13 (G/W) GroundRemote con-
troller BInput ONPress POWER
switch.Approx. 0V
Steering wheel
audio controls
do not function. Press SEEK DOWN
switch.Approx. 1.7V
Press VOL DOWN
switch.Approx. 3.3V
Except for above Approx. 5V
14 (B/Y) –Remote con-
troller ground–– – –Steering wheel
audio controls
do not function.
SKIA0175E
SKIA0176E

AV-34
AUDIO
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Value for WooferAKS00AM2
Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
VoltageExample of
symptom
+–Igni-
tion
switchOperation
1 (G/R) GroundBattery power
supplyInput OFF – Battery voltageNo sound from
woofer.
2 (B) Ground Ground – ON – Approx.0VNo sound from
woofer.
5 (P) GroundAmp ON sig-
nal Input ACC – Approx. 12VNo sound from
woofer.
7 (W) 8 (B)Woofer sound
signalInput ACC Receve audio signal No sound from
foofer.
SKIA0177E