Page 497 of 3502

HEATER & COOLING UNIT ASSEMBLY
ATC-119
C
D
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K
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MA
B
AT C
HEATER & COOLING UNIT ASSEMBLYPFP:27110
Removal and InstallationBJS000HH
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Drain coolant from cooling system. Refer to CO-10, "
Changing Engine Coolant" (QR engine) or CO-34,
"Changing Engine Coolant" (VQ engine).
3. Remove extension cowl top lower panel. Refer to EI-21, "
COWL TOP" .
4. Disconnect low-pressure pipe 1 and high-pressure pipe 1 from
evaporator.
a. Set a disconnector [high-pressure side (SST: 9253089908), low-
pressure side (SST: 9253089916)] 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:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
5. Disconnect two heater hoses from heater core.
6. Remove instrument panel assembly. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
7. Remove blower unit. Refer to AT C - 11 3 , "
BLOWER UNIT" .
8. Remove drain hose.
9. Remove mounting nuts, and then remove instrument stays.
RJIA3300E
RJIA3301E
RJIA3302E
Page 498 of 3502
ATC-120
HEATER & COOLING UNIT ASSEMBLY
10. Remove mounting bolts from heater & cooling unit.
11. Remove steering column mounting nuts.
12. Remove steering member mounting bolts.
13. Remove steering member, and then remove heater & cooling unit.
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.
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.
NOTE:
When filling radiator with coolant, refer to CO-10, "Changing Engine Coolant" (QR engine) or CO-34,
"Changing Engine Coolant" (VQ engine).
Recharge the refrigerant.
RJIA3303E
RJIA3304E
Page 499 of 3502
HEATER & COOLING UNIT ASSEMBLY
ATC-121
C
D
E
F
G
H
I
K
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MA
B
AT C
Disassembly and AssemblyBJS000HI
1. Adaptor duct 2. Heater & cooling case (left) 3. Mode door motor bracket
4. Mode door motor 5. Instrument lower cover bracket 6. Aspirator
7. Aspirator duct 8. Sub harness 9. Heater core
10. Foot duct (right) 11. Heater core cover 12. Air mix door motor (passenger side)
13. Evaporator cover 14. Bolt 15. Low-pressure pipe 2
16. High-pressure pipe 2 17. Cooler pipe grommet 18. Heater & cooling case (right)
19. Insulator 20. Air mix door motor (driver side) 21. Defroster door lever
22. Max. cool door lever 23. Main link 24. Ventilator door lever
25. Ventilator door link 26. Foot duct (left) 27. Ventilator door
28. Heater pipe support 29. Intake sensor 30. Intake sensor bracket
31. Adaptor cover 32. O-ring 33. Expansion valve
34. Evaporator 35. Defroster door 36. Defroster door link
SJIA1657E
Page 500 of 3502
ATC-122
HEATER & COOLING UNIT ASSEMBLY
37. Max. cool door link 38. Max. cool door (left) 39. Center case
40. Heater pipe grommet 41. Air mix door 42. Max. cool door (right)
: N·m (kg-m, in-lb)
: Always replace after every disassembly
Page 501 of 3502
MODE DOOR MOTOR
ATC-123
C
D
E
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MA
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AT C
MODE DOOR MOTORPFP:27731
Removal and InstallationBJS000HJ
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect mode door motor connector.
3. Remove mounting screws, and then remove mode door motor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3306E
Page 502 of 3502
ATC-124
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR PFP:27732
Removal and InstallationBJS000HK
REMOVAL
Driver Side
1. Set the temperature (driver side) at 18°C, and then disconnect the battery cable from the negative termi-
nal.
2. Remove instrument driver lower panel. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. Remove aspirator.
4. Remove mounting screws, and then remove air mix door motor.
5. Disconnect air mix door motor connector.
Passenger Side
1. Set the temperature (passenger side) at 18°C, and then disconnect the battery cable from the negative
terminal.
2. Remove blower unit. Refer to AT C - 11 3 , "
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.
RJIA3307E
RJIA3308E
Page 503 of 3502
HEATER CORE
ATC-125
C
D
E
F
G
H
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K
L
MA
B
AT C
HEATER COREPFP:27140
Removal and InstallationBJS000HL
REMOVAL
1. Set the temperature (passenger side) at 18°C, and then disconnect the battery cable from the negative
terminal.
2. Remove heater & cooling unit assembly. Refer to AT C - 11 9 , "
HEATER & COOLING UNIT ASSEMBLY" .
3. Remove mounting screws, and then remove air mix door motor
(passenger side).
4. Disconnect air mix door motor connector.
5. Remove mounting screws, and then remove foot duct (right).
6. Remove mounting screws, and then remove heater core cover.
7. Remove heater pipe support and heater pipe grommet.
8. Slide heater core (shown in the figure) to rightward.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3308E
1. Heater & cooling unit 2. Heater core cover 3. Foot duct (right)
4. Screw 5. Heater core 6. Air mix door motor (passenger side)
7. Heater pipe grommet 8. Heater pipe support
SJIA0992E
Page 504 of 3502
ATC-126
DUCTS AND GRILLES
DUCTS AND GRILLESPFP:27860
Removal and InstallationBJS000HM
REMOVAL
Removal of Center Ventilator Grilles
1. Remove cluster lid D. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove mounting clips, and then remove center ventilator
grilles.
1. Defroster nozzle 2. Duct assembly 3. Instrument panel
4. Side defroster grille (left) 5. Side ventilator grille (left) 6. Center ventilator grille (left)
7. Center ventilator grille (right) 8. Side ventilator grille (right) 9. Side defroster grille (right)
SJIA1653E
RJIA2209E