blower NISSAN TIIDA 2008 Service Service Manual

MTC-60
< SERVICE INFORMATION >
A/C UNIT ASSEMBLY
Disassembly and Assembly
INFOID:0000000001704313
1. Blower case (right) 2. Foot duct (right) 3. Blower motor
4. Sub ventilator·defroster door lever 5. Sub ventilator·defroster door rod 6. Ventilator·defroster door lever
7. Ventilator·defroster door rod 8. Intake door lever 9. Ventilator·defroster door link
10. Main link 11. Thermo control amp. (TYPE 1*) 12. Heater pipe packing
13. Lower blower case 14. Heater pipe cover 15. Heater pipe clip
16. Intake door link 17. Blower fan resistor 18. Intake case (left)
19. Center defroster duct 20. Blower case (left) 21. Cover
22. Cover 23. Expansion valve cover 24. Foot door lever
25. Foot door link 26. Expansion valve 27. Air conditioner filter
28. Evaporator cover 29. Heater core 30. Spring
31. Water valve rod 32. Air mix door lever 33. Intake door
34. Intake case (right) 35. Foot duct (left) 36. Ventilator·defroster door
37. Foot door 38. Air mix door 39. Seal
SJIA1515E

MTC-62
< SERVICE INFORMATION >
BLOWER MOTOR
BLOWER MOTOR
Removal and InstallationINFOID:0000000001704314
REMOVAL
1. Remove instrument panel and pad. Refer to IP-10.
2. Remove side ventilator duct (right). Refer to MTC-69, "
Removal and Installation".
3. Disconnect blower motor connector (1).
4. Push the flange holding hook (A) toward the blower motor (2),
then rotate the blower motor (2) clockwise and remove it from
the A/C unit assembly.
CAUTION:
When blower fan and blower motor are assembled, the bal-
ance is adjusted, do not disassemble to replace the individ-
ual parts.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Rotate the blower motor until the blower motor flange holding hook locks securely in A/C unit assem-
bly.
LJIA0199E

MTC-66
< SERVICE INFORMATION >
BLOWER FAN RESISTOR
BLOWER FAN RESISTOR
Removal and InstallationINFOID:0000000001704318
REMOVAL
1. Remove the instrument lower finisher. Refer to IP-10.
2. Remove the console side cover. Refer to IP-10
.
3. Remove the brake pedal assembly. Refer to BR-5
.
4. Disconnect the blower fan resistor connector.
5. Remove the blower fan resistor screws (A), then remove the
blower fan resistor (1).
INSTALLATION
Installation is in the reverse order of removal.
SJIA0656E

MTC-68
< SERVICE INFORMATION >
AIR CONDITIONER FILTER
AIR CONDITIONER FILTER
Removal and InstallationINFOID:0000000001704320
FUNCTION
The fresh air (A) and the recirculated air (B) drawn inside the pas-
senger compartment by the blower fan (1) is kept clean (C) on either
mode by the air conditioner filter (2), located before the evaporator
(3), in the A/C unit assembly.
REPLACEMENT TIMING
Replace the air conditioner filter according to the maintenance schedules. Refer to MA-6.
NOTE:
The air conditioner filter caution label is located inside the glove box door.
REPLACEMENT PROCEDURES
1. Remove the glove box assembly. Refer to IP-10.
2. Compress the air conditioner filter (1) downward while sliding it
to the RH side of the vehicle to release the upper pawl.
3. Move the bottom of air conditioner filter (1) upward as shown to
release the bottom tab, then remove it.
4. Replace the air conditioner filter with new one and install the new filter in the A/C unit assembly.
CAUTION:
Make sure that the air conditioner filter lower tab is fully seated, and that the air conditioner upper
pawl is locked into place securing the new filter into the A/C unit assembly.
5. Install the glove box assembly. Refer to IP-10
.
WJIA2253E
SJIA0652E

MTC-84
< SERVICE INFORMATION >
REFRIGERANT LINES
6. Remove evaporator (1) with lower blower case (2) from A/C unit
assembly.
7. Remove thermo control amp. (3) from evaporator (1), if
equipped (TYPE 1 systems).
8. Remove evaporator (1) from lower blower case (2).
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace O-rings for A/C piping with new ones, and apply compressor oil when installing.
• Mark the position of the thermo control amp., if equipped (TYPE 1 systems).
• When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveINFOID:0000000001704332
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant.
2. Remove cowl top cover. Refer to EI-21
.
3. Remove lower dash insulator.
4. Disconnect low-pressure flexible hose and high-pressure pipe from evaporator. Refer to MTC-58
.
5. Remove expansion valve bolts (A), and then remove expansion
valve (1).
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 in the reverse order of removal.
CAUTION:
• Replace O-rings of evaporator with new ones, and apply compressor oil when installing.
• When recharging refrigerant, check for leaks.
Checking of Refrigerant LeaksINFOID:0000000001704333
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C oil leak-
age, damage and corrosion. A/C oil leakage may indicate an area of refrigerant leakage. Allow extra inspec-
tion time in these areas when using either an electronic refrigerant leak detector or fluorescent dye leak
detector.
If dye is observed, confirm the leak with an electronic refrigerant leak detector. It is possible a prior leak was
repaired and not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electronic leak detector, move the probe along the suspected
leak area at 25 to 50 mm (1 to 2 in) per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electronic leak detector probe slower and closer to the suspected leak area will improve
the chances of finding a leak.
SJIA0599J
SJIA0683E

REFRIGERANT LINES
MTC-87
< SERVICE INFORMATION >
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Check all around the service valves. Ensure service valve caps are secured on the service valves (to
prevent leaks).
NOTE:
After removing A/C manifold gauge set from service valves, wipe any residue from valves to prevent any
false readings by leak detector.
• Cooling unit (Evaporator)
With engine OFF, turn blower fan on “High” for at least 15 seconds to dissipate any refrigerant trace in
the cooling unit. Wait a minimum of 10 minutes accumulation time (refer to the manufacturer’s recom-
mended procedure for actual wait time) before inserting the leak detector probe into the drain hose.
Keep the probe inserted for at least 10 seconds. Use caution not to contaminate the probe tip with water
or dirt that may be in the drain hose.
5. If a leak detector detects a leak, verify at least once by blowing compressed air into area of suspected
leak, then repeat check as outlined above.
6. Do not stop when one leak is found. Continue to check for additional leaks at all system components.
If no leaks are found, perform steps 7-10.
7. Start engine.
8. Set the heater A/C control as follows;
a. A/C switch: ON
b. Mode control dial position: VENT (Ventilation)
c. Intake door lever position: Recirculation
d. Max. cold temperature
e. Fan speed: High
9. Run engine at 1,500 rpm for at least 2 minutes.
10. Turn engine off and perform leak check again following steps 4
through 6 above.
Refrigerant leaks should be checked immediately after stopping
the engine. Begin with the leak detector at the compressor. The
pressure on the high-pressure side will gradually drop after
refrigerant circulation stops and pressure on the low-pressure
side will gradually rise, as shown in the graph. Some leaks are
more easily detected when pressure is high.
11. Before connecting recovery/recycling equipment to vehicle,
check recovery/recycling equipment gauges. No refrigerant
pressure should be displayed. If pressure is displayed, recover
refrigerant from equipment lines.
12. Discharge A/C system using approved refrigerant recovery/recycling equipment. Repair the leaking fitting
or component if necessary.
13. Evacuate and recharge A/C system and perform the leak test to confirm no refrigerant leaks.
14. Perform A/C performance test to ensure system works properly.
SHA839E

HARNESS
PG-39
< SERVICE INFORMATION >
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C2 M6 W/4 : Steering lock solenoid E2 M52 W/40 : Intelligent key unit
B3 M7 W/16 : Door mirror remote control switch B2 M53 W/16 : EPS control unit
A3 M8 W/16 : To D2 B3 M54 B/2 : EPS control unit
A3 M9 W/16 : To D1 C3 M55† W/4: Hazard switch (hatchback early
production)
E2 M10 GR/2 : Instrument panel antenna D2 M55†† W/4: Hazard switch (hatchback late production
or sedan)
G3 M11 W/4 : To B106 B2 M57 — : Body ground
G4 M12 W/16 : To B101 F2 M59 W/2 : Glove box lamp
G3 M13 W/24 : To B102 C1 M60 L/2 : EPS control unit
G3 M14 W/24 : To B120 F1 M61 — : Body ground
B4 M15 W/16 : To B23 E2 M62 W/2 : Front blower motor
B4 M16 W/24 : To B24 C1 M63 W/4 : Torque sensor
D5 M17 B/1 : Parking brake switch A2 M69 SMJ : To E7
F2 M18 W/40 : BCM (body control module) B2 M73 GR/6: Key switch and ignition knob switch (With
intelligent key)
F2 M19 W/15 : BCM (body control module) G3 M74 W/12 : To D102
F3 M20 B/15 : BCM (body control module) G3 M75 W/12 : To D101
C2 M21 W/4 : NATS antenna amp. F2 M77 Y/4 : Front passenger air bag module
B3 M22 W/16 : Data link connector A2 M78 B/2 : To E11
E3 M23 W/4 : Remote keyless entry receiver B1 M79 — : Body ground
C1 M24 W/40 : Combination meter D3 M150 W/4 : To M32
C3 M25 /2 : Diode-1 C3 M151 W/4 : Front blower motor resistor
B2 M26 W/6 : Ignition switch
C2 M27 GR/6 : Key switch and key lock solenoid
C2 M28 W/16 : Combination switch
C3 M29 Y/6 : Combination switch (spiral cable)
C3 M30 GR/8 : Combination switch (spiral cable)
E3 M32 W/4 : To M150
D2 M33 B/15 : Front air control
D4 M35 Y/28 : Air bag diagnosis sensor unit
D2 M36† W/3: Front passenger air bag OFF indicator
(hatchback early production)
C3 M36†† W/3: Front passenger air bag OFF indicator
(hatchback late production or sedan)
D4 M38 W/6 : A/T device
D4 M38 W/6 : CVT device (without intelligent key)
D4 M38 W/8 : CVT device (with intelligent key)
B3 M39 W/2 : Tire pressure warning check connector
D2 M41 W/2 : Defrost A/C switch
D3 M42 W/3 : Thermo control amp. (without CVT)
D2 M43 W/20 : Audio unit