heater NISSAN TIIDA 2007 Service Repair Manual

VTL-28
< ON-VEHICLE REPAIR >[AUTOMATIC AIR CONDITIONER]
PTC HEATER
PTC HEATER
Removal and Installation of PTC Control UnitINFOID:0000000001696502
REMOVAL
1. Remove the instrument lower finisher and instrument lower cover (LH) for LHD only. Refer to IP-11,
"Removal and Installation".
2. Remove the glove box assembly and instrument lower cover (RH) for RHD only. Refer to IP-11, "
Removal
and Installation".
3. Disconnect the PTC control unit connector (A).
4. Remove the PTC control unit screws (B), and then remove the
PTC control unit (1).
INSTALLATION
Installation is in the reverse order of removal.
Removal and Installation of PTC HeaterINFOID:0000000001696503
REMOVAL
1. Remove the instrument panel and pad. Refer to IP-11, "Removal and Installation".
2. Disconnect the PTC heater connector and full hot switch connector.
3. Remove the PTC heater and full hot switch screws (A), and then
remove the PTC heater (1) and full hot switch (2).
INSTALLATION
Installation is in the reverse order of removal.
Removal and Installation of Water Temperature SensorINFOID:0000000001696504
REMOVAL
1. Remove the A/C unit assembly. Refer to VTL-12, "Removal and Installation".
2. Remove the heater pipe cover. Refer to VTL-39, "
Disassembly and Assembly".
SJIA0776E
SJIA0774E

PTC HEATER
VTL-29
< ON-VEHICLE REPAIR >[AUTOMATIC AIR CONDITIONER]
C
D
E
F
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MA
B
VTL
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3. Remove the water temperature sensor screw (A), and then
remove the water temperature sensor (1).
INSTALLATION
Installation is in the reverse order of removal.
SJIA0934E

A/C UNIT ASSEMBLY
VTL-37
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
C
D
E
F
G
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B
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A/C UNIT ASSEMBLY
Removal and InstallationINFOID:0000000001696531
NOTE:
A LHD model shown, RHD model similar.
REMOVAL
1. Use a recovery/recycling equipment (for HFC-134a) to discharge refrigerant. Refer to HA-29, "HFC-134a
(R-134a) Service Procedure".
2. Drain coolant from cooling system. Refer to CO-11, "
Changing Engine Coolant" (HR16DE), CO-35,
"Changing Engine Coolant" (MR18DE), CO-58, "Draining" (K9K).
3. Remove cowl top cover. Refer to EXT-20, "
Removal and Installation".
4. Remove lower dash insulator.
5. Remove bolt (A), and then disconnect low-pressure flexible
hose (1) and high-pressure pipe (2) from evaporator.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
6. Remove clamps (A), and then disconnect heater hoses (1) from
heater core.
A. A/C unit assembly bolts B. Steering member bolts C. Steering column nuts
SJIA0648E
SJIA0644E
SJIA0645E

A/C UNIT ASSEMBLY
VTL-39
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
C
D
E
F
G
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B
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Disassembly and AssemblyINFOID:0000000001696532
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
40. Expansion valve grommet 41. O-ring 42. Evaporator
AWIIA0591ZZ

VTL-40
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
A/C UNIT ASSEMBLY
43. Cooler pipe assembly 44. Water temperature sensor 45. Full hot switch
46. PTC heater 47. PTC control unit

VTL-42
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
HEATER CORE
HEATER CORE
Removal and InstallationINFOID:0000000001696534
REMOVAL
1. Remove the A/C unit assembly. Refer to VTL-37, "Removal and Installation".
2. Remove the foot duct (left). Refer to VTL-48, "
Removal and Installation".
3. Remove the heater pipe cover screw, then remove the heater pipe cover.
4. Remove the heater pipe clip screw, then remove the heater pipe clip.
5. Slide the heater core out of the A/C unit assembly.
INSTALLATION
Installation is in the reverse order of removal.
1. Heater pipe cover 2. Heater pipe clip 3. Heater core
A. Heater pipe cover screw B. Heater pipe clip screw
LJIA0200E

PTC HEATER
VTL-53
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
C
D
E
F
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H
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K
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MA
B
VTL
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PTC HEATER
Removal and Installation of PTC Control UnitINFOID:0000000001696541
REMOVAL
1. Remove the instrument lower finisher and instrument lower cover (LH) for LHD only. Refer to IP-11,
"Removal and Installation".
2. Remove the glove box assembly and instrument lower cover (RH) for RHD only. Refer to IP-11, "
Removal
and Installation".
3. Disconnect connector (A).
4. Remove mounting screws (B), and then remove PTC control
unit (1).
INSTALLATION
Installation is basically the reverse order of removal.
Removal and Installation of PTC HeaterINFOID:0000000001696542
REMOVAL
1. Remove instrument panel and pad. Refer to IP-11, "Removal and Installation".
2. Disconnect PTC heater connector and full hot switch connector.
3. Remove mounting screws (A), and then remove PTC heater (1)
and full hot switch (2).
INSTALLATION
Installation is basically the reverse order of removal.
Removal and Installation of Water Temperature SensorINFOID:0000000001696543
REMOVAL
1. Remove A/C unit assembly. Refer to VTL-37, "Removal and Installation".
2. Remove heater pipe cover. Refer to VTL-39, "
Disassembly and Assembly".
SJIA0776E
SJIA0774E

VTL-54
< ON-VEHICLE REPAIR >[MANUAL AIR CONDITIONER]
PTC HEATER
3. Remove mounting screw (A), and then remove water tempera-
ture sensor (1).
INSTALLATION
Installation is basically the reverse order of removal.
SJIA0934E

WCS-68
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
324
(LG)GroundDoor lock status indi-
catorOutputDoor lock status
indicatorON Battery voltage
OFF 0V
33
(G)GroundCombination switch
OUTPUT 2OutputCombination
switchAll switch OFF
(Wiper intermittent dial 4)0V
Front washer switch ON
(Wiper intermittent dial 4)
Rear wiper switch ON
(Wiper intermittent dial 4)
Rear washer switch ON
(Wiper intermittent dial 4)
Any of the condition below
with all switch OFF
 Wiper intermittent dial 1
 Wiper intermittent dial 5
 Wiper intermittent dial 6
34
(GR)GroundCombination switch
OUTPUT 4OutputCombination
switch
(Wiper intermit-
tent dial 4)All switch OFF 0V
Lighting switch 2ND
Lighting switch PASS
Front fog lamp switch ON
Turn signal switch LH
35
3, 7
(BR)Ground Sensor ground Output Ignition switchON 0V → 5V
OFF 0V
36
7
(V)GroundAmbient sensor sig-
nalInput Ignition switchON 0V → 5V
OFF 0V
38
5
(V)Ground NATS antenna amp.Input/
OutputInsert mechanical key into ignition key cylin-
derJust after Insert mechanical key
into ignition key cylinder. Pointer
of tester should move
39
(P)—CAN-LInput/
Output——
45
3
(GR)Ground Intake sensor Input Ignition switchON 0V
OFF Battery voltage
47
5
(GR)Ground Security indicator OutputSecurity indica-
torON 0V
Blinking
(every 2.4 seconds)Battery voltage → 0V
OFF Battery voltage
48
(W)Ground Start power supply InputIgnition switch START Battery voltage
Other than above 0V
49
(R)GroundFront demist vent
switchInputFront demist
vent switchON 0V → 5V
OFF 0V
50
(P)Ground Fan switch Output Fan switchNot pressed Battery voltage
Pressed 0
51
7
(L)Ground PTC relay 3 control Output Ignition ONPTC heater 3 ON 0V
PTC heater 3 OFF Battery voltage Te r m i n a l N o .
(Wire color)Description
ConditionReference Value
(Approx.)
Signal nameInput/
Output +−
SKIA2167J
SKIA2167J

WCS
BCM (BODY CONTROL MODULE)
WCS-69
< ECU DIAGNOSIS >
C
D
E
F
G
H
I
J
K
L
MB A
O
P
527
(GR)Ground PTC relay 2 control Output Ignition ONPTC heater 2 ON 0V
PTC heater 2 OFF Battery voltage
58
(Y)Ground Door unlock sensor Input Driver doorLock Battery voltage
Unlock 0V
59
(O)Ground Rear door switch LH InputRear door
switch LHOFF (When rear door LH
closed) Battery voltage
ON (When rear door LH
opened)0V
60
(GR)Ground Rear door switch RH InputRear door
switch RHOFF (When rear door RH
closed) Battery voltage
ON (When rear door RH
opened)0V
61
3
(O)Ground A/C switch Output A/C switchNot pressed Battery voltage
Pressed 0V
63
(R)GroundLight & rain sensor
serial linkOutputIgnition switch OFF Battery voltage
Ignition switch ON
64
7
(O)Ground PTC relay 1 control Output Ignition ONPTC heater 1 ON 0V
PTC heater 1 OFF Battery voltage
65
(V)Ground Turn signal LH OutputIgnition switch
ONTurn signal switch OFF 0V
Turn signal switch LH
66
(W)Ground Turn signal RH OutputIgnition switch
ONTurn signal switch OFF 0V
Turn signal switch RH
67
(G)GroundDoor unlock (pas-
senger and rear
doors)OutputDoor lock/un-
lock switchPressed to the unlock side Battery voltage
Pressed to the lock side 0V
68
1
(R)GroundBack door lock actu-
atorOutputBack door
opener switchPressed Battery voltage
Not pressed 0V
68
2
(R)GroundTrunk release sole-
noidOutputTrunk lid opener
switchPressed Battery voltage
Not pressed 0V Terminal No.
(Wire color)Description
ConditionReference Value
(Approx.)
Signal nameInput/
Output +−
MKIB0173E
SKIA1120J
SKIA1120J