Page 553 of 4449
ATC-124
INTAKE DOOR MOTOR
Revision: 2004 November 2004 FX35/FX45
INTAKE DOOR MOTORPFP:27730
Removal and InstallationAJS0015H
REMOVAL
1. Remove blower unit. Refer to ATC-121, "BLOWER UNIT" .
2. Remove mounting screws, and then remove intake door motor
from blower unit.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0947E
Page 554 of 4449
IN-CABIN MICROFILTER
ATC-125
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2004 November 2004 FX35/FX45
IN-CABIN MICROFILTERPFP:27277
Removal and InstallationAJS001FC
FUNCTION
Air inside passenger compartment is kept clean at either recircula-
tion or fresh mode by installing in-cabin microfilter into blower unit.
REPLACEMENT TIMING
Replace in-cabin microfilter.
Refer to MA-9, "
CHASSIS AND BODY MAINTENANCE" in SCHEDULE 1 and MA-11, "CHASSIS AND
BODY MAINTENANCE" in SCHEDULE 2.
Caution label is fixed inside the glove box.
REPLACEMENT PROCEDURES
1. Remove the instrument passenger lower panel. Refer to IP-11, "Removal and Installation" .
2. Remove the filter cover, then remove the in-cabin microfilter.
3. Take out the in-cabin microfilter from blower unit.
4. Replace with new one and reinstall on blower unit.
5. Reinstall the glove box.
RJIA1331E
RJIA2040E
Page 555 of 4449

ATC-126
HEATER & COOLING UNIT ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationAJS0015J
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge refrigerant.
2. Drain coolant from cooling system. Refer to CO-11, "
Changing Engine Coolant" (VQ35DE) or CO-36,
"Changing Engine Coolant" (VK45DE).
3. Remove cowl top cover. Refer to EI-24, "
COWL TOP" .
4. Remove high-pressure pipe 2 mounting clip.
5. Remove low-pressure flexible hose bracket mounting bolts.
6. Disconnect evaporator-side one touch joint.
a. Set a disconnector (High-pressure side: 92530-89908, Low-
pressure side: 92530-89916) 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.
CAUTION:
Seal connection opening of piping with a cap or vinyl tape
to avoid exposure to atmosphere.
7. Remove electronic control throttle assembly (VQ35DE). Refer to
EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Disconnect two heater hoses from heater core.
9. Remove instrument panel assembly. Refer to IP-11, "
Removal
and Installation" .
10. Remove blower unit. Refer to ATC-121, "
BLOWER UNIT" .
11. Remove instrument stays (driver side and passenger side).
RJIA2037E
RJIA2041E
RJIA2077E
RJIA2042E
Page 556 of 4449

HEATER & COOLING UNIT ASSEMBLY
ATC-127
C
D
E
F
G
H
I
K
L
MA
B
AT C
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)
Page 557 of 4449
ATC-128
HEATER & COOLING UNIT ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
Disassembly and AssemblyAJS0015K
1. Heater pipe grommet 2. Heater core 3. Heater pipe cover
4. Aspirator 5. Aspirator hose 6. Air mix door motor (driver side)
7. Air mix door (slide door) 8. Max. cool door link 9. Max. cool door lever
10. Ventilator door lever 11. Ventilator door link 12. Air mix door motor (passenger side)
13. Intake sensor bracket 14. Intake sensor 15. Foot duct (right)
16. Evaporator cover 17. Evaporator cover adaptor 18. Heater pipe bracket
RJIA2045E
Page 558 of 4449
HEATER & COOLING UNIT ASSEMBLY
ATC-129
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: 2004 November 2004 FX35/FX45
19. Insulator 20. Heater case (right) 21. Low-pressure pipe 2
22. High-pressure pipe 3 23. Expansion valve 24. Evaporator
25. Heater case (left) 26. Foot duct (left) 27. Center case
28. Max. cool door (left) 29. Ventilator door 30. Side link
31. Mode door motor 32. Defroster door 33. Max. cool door (right)
34. Defroster door lever 35. Defroster door link
Page 559 of 4449
ATC-130
MODE DOOR MOTOR
Revision: 2004 November 2004 FX35/FX45
MODE DOOR MOTORPFP:27731
Removal and InstallationAJS0015L
REMOVAL
1. Remove blower unit. Refer to ATC-121, "BLOWER UNIT" .
2. Remove mounting screws from mode door motor.
3. Disconnect mode door connector.
4. Remove mounting screws, and then remove mode door motor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA0954E
Page 560 of 4449
AIR MIX DOOR MOTOR
ATC-131
C
D
E
F
G
H
I
K
L
MA
B
AT C
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