2007 INFINITI FX35 battery

ATC-84
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
1. CHECK AMBIENT SENSOR AND INTAKE SENSOR CIRCUIT
Check ambient sensor and intake sensor. Refer to AT C - 5 3 , "
FUNCTION CONFIRMATION PROCEDURE" ,
see No. 9 and 11.
OK or NG
OK >> GO TO 2.
NG >>

Malfunctioning ambient sensor: Refer to ATC-103, "Ambient Sensor Circuit" .

Malfunctioning intake sensor: Refer to AT C - 11 2 , "Intake Sensor Circuit" .
2. PERFORM AUTO ACTIVE TEST
Refer to PG-21, "
Auto Active Test" .
Does the magnet clutch operate?
YES >>
WITH CONSULT-II: GO TO 5

WITHOUT CONSULT-II: GO TO 6.
NO >> Check 10A fuse (No. 79, located in IPDM E/R). Refer to PG-25, "
IPDM E/R Terminal Arrange-
ment" , and GO TO 3.
3. CHECK CIRCUIT CONTINUITY BETWEEN IPDM E/R AND COMPRESSOR
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and compressor connector.
3. Check continuity between IPDM E/R harness connector E8 ter- minal 33 and compressor harness connector F2 terminal 1.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK MAGNET CLUTCH CIRCUIT
Check for operation sound when applying battery voltage direct cur-
rent to terminal.
OK or NG
OK >> 1. Replace IPDM E/R. 2. Go to self-diagnosis procedure AT C - 5 3 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-4. Confirm that magnet clutch opera-
tion normal.
NG >> 1. Replace magnet clutch. 2. Go to self-diagnosis procedure AT C - 5 3 , "
FUNCTION
CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-4. Confirm that magnet clutch operation normal.
33 – 1 : Continuity should exist.
RJIA2004E
RJIA2005E

TROUBLE DIAGNOSIS ATC-97
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AT C
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

AIR MIX DOOR MOTOR ATC-131
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AT C
Revision: 2006 July 2007 FX35/FX45
AIR MIX DOOR MOTOR PFP:27732
Removal and InstallationNJS000EX
REMOVAL
Driver Side
1. Set the temperature control switch (driver side) at 18 °C (60 °F), and then disconnect the battery cable from
the negative terminal.
2. Remove instrument driver lower panel. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. Remove mounting screws, and then remove air mix door motor.
4. Disconnect air mix door motor connector.
Passenger Side
1. Set the temperature control switch (passenger side) at 18 °C (60 °F), and then disconnect the battery cable
from the negative terminal.
2. Remove blower unit. Refer to ATC-120, "
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

ATC-150
REFRIGERANT LINES
Revision: 2006 July 2007 FX35/FX45
5. Disconnect one-touch joint between high-pressure pipe 1 and 2.
a. Set a disconnector (SST: 9253089908) 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 high-pressure pipe 1 and 2 with
suitable material such as vinyl tape to avoid the entry of air.
6. Remove high-pressure pipe 1.
7. Disconnect one-touch joint between high-pressure pipe 2 and 3.
a. Set a disconnector (SST: 9253089908) 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.
8. Remove high-pressure pipe 2. CAUTION:
Cap or wrap the joint of high-pressure pipe 2 and 3 with
suitable material such as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of high-pressure pipe 1 and 2 with new ones, and then apply compressor oil to it
when installing it.

Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
Removal and Installation of Low-pressure Pipe 2 and High-pressure Pipe 3NJS000F8
REMOVAL
1. Set the temperature (passenger side) at 18 °C (60 °F), and then disconnect the battery cable from the neg-
ative terminal.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove cowl top cover. Refer to EI-23, "
COWL TOP" .
4. Remove low-pressure pipe 1 bracket and low-pressure flexible hose bracket mounting bolts.
RJIA2072E
RJIA2073E
RJIA2068E

AUDIO AV-29
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AV
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for Audio UnitNKS003L8
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
2 (W) 1 (B) Audio signal front LH Output ACC Receive audio signal
4 (G) 3 (R) Audio signal front RH Output ACC Receive audio signal
5 (R/W) Ground Antenna amp. ON
signal Output ACC — Approx. 12 V
6 (W/L) Ground Battery power supply Input OFF — Battery voltage 9 — Shield — — — —
10 (LG) Ground ACC power supply Input ACC — Battery voltage 11 — Shield — — — —
12 (G/W) Ground BOSE speaker amp.
ON signal Output ACC — Approx. 12 V
14 (BR) 13 (Y) Audio signal rear LH Output ACC Receive audio signal
16 (L) 15 (P) Audio signal rear RH Output ACC Receive audio signal
21 (PU) Ground Communication signal
(AUDIO-DCU) Output ACC
Operate audio volume
switch
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3606E

AUDIO AV-31
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AV
Revision: 2006 July 2007 FX35/FX45
*: With satellite radio
Terminals and Reference Value for BOSE Speaker Amp.NKS003L9
Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (R) Ground Battery power supply Input OFF — Battery voltage
9 (LG) 10 (B/Y) Audio signal rear door
speaker LH Output ACC Receive audio signal
11 (OR) 12 (B/P) Audio signal rear door
speaker RH Output ACC Receive audio signal
13 (L) 14 (B/W) Audio signal front door
speaker LH Output ACC Receive audio signal
15 (BR) 16 (B/R) Audio signal front door
speaker RH Output ACC Receive audio signal
17 (B) Ground Ground — ON — Approx. 0 V
18 (R/L) 2 (B) Audio signal instru-
ment speaker center Output ACC Receive audio signal
19 (W) 3 (B) Audio signal woofer Output ACC Receive audio signal
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E
SKIB3609E

AUDIO AV-33
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AV
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for A/C and AV SwitchNKS003LA

*1: With telephone system

*2: Without telephone system Terminal
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
1 (W/L) Ground Battery power supply Input OFF — Battery voltage 2 (LG) Ground ACC power supply Input ACC — Battery voltage
5 (B) Ground Ground — ON — Approx. 0 V
6 (PU) Ground Communication
signal (+) Input/
Output ON —
7 — Shield — — — —
8 (LG) Ground Communication
signal (–) Input/
Output ON —
12 (R/W) Ground Steering SW A Input ON Press and hold PTT
*1
switch Approx. 0 V
Press and hold MODE
*2
switch Approx. 0 V
Press and hold SEEK UP
switch Approx. 1.7 V
Press and hold VOL UP
switch Approx. 3.3 V
Except for above Approx. 5 V
13 (G/W) Ground Steering SW B Input ON Press and hold MODE
*1
switch Approx. 0 V
Press and hold POWER
*2
switch Approx. 0 V
Press and hold SEEK
DOWN switch Approx. 1.7 V
Press and hold VOL DOWN
switch Approx. 3.3 V
Except for above Approx. 5 V
14 (B/Y) Ground Steering SW ground — ON — Approx. 0 V
SKIB7378E
SKIB7379E

AV-34
AUDIO
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for WooferNKS003AS
Terminals and Reference Value for Satellite Radio TunerNKS003LB
Te r m i n a l
(Wire color) Item Signal
input/
output Condition
Voltage
+– Ignition
switch Operation
1 (G/R) Ground Battery power supply Input OFF — Battery voltage 2 (B) Ground Ground — ON — Approx. 0 V
5 (P) Ground Amp ON signal Input ACC — Approx. 12 V
7 (W) 8 (B) Audio signal woofer Input ACC Receive audio signal
SKIB3609E
Te r m i n a l
(Wire color) Item Signal
input/
output Condition
Reference value
+– Ignition
switch Operation
2 (B) 1 (R) Satellite radio audio
signal LH Output ON Receive satellite radio audio
signal
4 (G) 3 (W) Satellite radio audio
signal RH Output ONReceive satellite radio audio
signal
5 — Shield — — — —
6 — Shield — — — —
8 (L) Ground Communication signal
REQ (SAT-AUDIO) Output ONWhen setting to satellite
radio mode
9 (L/R) Ground Communication signal
Tx (SAT-AUDIO) Output ON
When setting to satellite
radio mode
SKIB3609E
SKIB3609E
SKIB7338E
SKIB7337E