INFINITI FX35 2005 Service Manual

ATC-114
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
3. CHECK INTAKE SENSOR
Refer to AT C - 11 4 , "
Intake Sensor" .
OK or NG
OK >> 1. Replace unified meter and A/C amp. 2. Go to self-diagnosis AT C - 5 4 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
NG >> 1. Replace intake sensor. 2. Go to self-diagnosis AT C - 5 4 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
4. CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between intake sensor harness connector M254 terminal 2 (R) and unified meter and A/C amp. harness
connector M57 terminal 41 (P).
4. Check continuity between intake sensor harness connector M254 terminal 2 (R) and ground.
OK or NG
OK >> 1. Replace unified meter and A/C amp. 2. Go to self-diagnosis AT C - 5 4 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
NG >> Repair harness or connector.
COMPONENT INSPECTION
Intake Sensor
After disconnecting intake sensor connector M254, measure resis-
tance between terminals 1 and 2 at sensor side, using the table
below.
If NG, replace intake sensor. 2 – 41 : Continuity should exist.
2 – Ground : Continuity should not exist.
RJIA2033E
Temperature °C ( °F) Resistance k Ω
− 15 (5) 12.34
− 10 (14) 9.62
− 5 (23) 7.56
0 (32) 6.00
5 (41) 4.80
10 (50) 3.87
15 (59) 3.15
20 (68) 2.57
25 (77) 2.12
30 (86) 1.76
35 (95) 1.47
40 (104) 1.23 45 (113) 1.04
RJIA2034E

CONTROLLER ATC-115
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2005 July 2005 FX
CONTROLLERPFP:27500
Removal and Installation of A/C and AV SwitchAJS001BN
REMOVAL
Refer to AV- 4 8 , "Removal and Installation for A/C and AV Switch" .
INSTALLATION
Installation is basically the reverse order of removal.

ATC-116
AUTO AMP
Revision: 2005 July 2005 FX
AUTO AMPPFP:27760
Removal and Installation of Unified Meter and A/C Amp.AJS00159
REMOVAL
1. Remove audio unit. Refer to AV- 4 7 , "Removal and Installation of Audio Unit" .
2. Remove mounting screws, and then remove unified meter and A/C amp.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2035E

AMBIENT SENSOR ATC-117
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2005 July 2005 FX
AMBIENT SENSORPFP:27722
Removal and InstallationAJS0015A
REMOVAL
1. Remove front grille. Refer to EI-22, "FRONT GRILLE" .
2. Disconnect ambient sensor connector, and then remove ambi- ent sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2016E

ATC-118
IN-VEHICLE SENSOR
Revision: 2005 July 2005 FX
IN-VEHICLE SENSORPFP:27720
Removal and InstallationAJS0015B
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-11, "Removal and Installation" .
2. Remove mounting screw, and then remove in-vehicle sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2036E

SUNLOAD SENSOR ATC-119
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2005 July 2005 FX
SUNLOAD SENSORPFP:27721
Removal and InstallationAJS0015C
REMOVAL
1. Remove front defroster grille (right side). Refer to IP-11, "Removal and Installation" .
2. Disconnect sunload sensor connector, and then remove the sunload sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2026E

ATC-120
INTAKE SENSOR
Revision: 2005 July 2005 FX
INTAKE SENSORPFP:27723
Removal and InstallationAJS0015D
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-152, "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.
2. Slide evaporator to passenger side, and then remove intake sensor.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

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

Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sen-
sor can be located in the same position.

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.
RJIA0928E

BLOWER UNIT ATC-121
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2005 July 2005 FX
BLOWER UNITPFP:27200
Removal and InstallationAJS0015E
REMOVAL
1. Remove instrument passenger lower panel. Refer to IP-11, "Removal and Installation" .
2. Remove mounting nuts, and then remove ECM with bracket attached.
3. Disconnect intake door motor connector and blower fan motor connector.
4. Remove harness clip from blower unit.
5. Remove mounting bolt and screws from blower unit.
CAUTION:
Move blower unit rightward, and remove locating pin (1
part) and joint. Then remove blower unit downward.
6. Remove blower unit.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Make sure locating pin (1 part) and joint are securely inserted.
RJIA2039E
RJIA0943E

ATC-122
BLOWER UNIT
Revision: 2005 July 2005 FX
Disassembly and AssemblyAJS0015F
1. Adapter 2. Intake upper case 3. Filter cover
4. In-cabin microfilter 5. Intake lower case 6. Blower motor assembly
7. Motor cover 8. Intake door lever 2 9. Intake door motor
10. Intake door link 11. Intake door lever 3 12. Intake door 2
13. Intake door lever 1 14. Intake door 1 15. Intake bell mouth
SJIA0420E

BLOWER MOTOR ATC-123
C
D E
F
G H
I
K L
M A
B
AT C
Revision: 2005 July 2005 FX
BLOWER MOTORPFP:27226
Removal and InstallationAJS0015G
REMOVAL
1. Remove instrument lower cover. Refer to IP-11, "Removal and Installation" .
2. Disconnect blower motor connector.
3. Remove mounting screws, and then remove blower motor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2239E