2008 NISSAN LATIO heater

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

HEATER CORE
MTC-67
< SERVICE INFORMATION >
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HEATER CORE
Removal and InstallationINFOID:0000000001704319
REMOVAL
1. Remove the A/C unit assembly. Refer to MTC-58.
2. Remove the foot duct (left). Refer to MTC-69, "
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

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

PG-58
< SERVICE INFORMATION >
HARNESS
Wiring Diagram Codes (Cell Codes)
INFOID:0000000001704709
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
D3 D404 W/3 : Rear wiper motor
D4 D405 W/4 : Back door lock assembly
D4 D406 W/2 : Back door request switch
E2 D407 W/2 : High mounted stop lamp
D4 D408 BR/2 : Back door opener switch
E4 D409 B/1 : Condenser-1
C2 D410 — : Body ground
E3 D411 B/1 : Condenser-1
E1 D412 B/1 : Rear window defogger (+)
C2 D413 B/1 : Rear window defogger (-)
F3 D414 — : Body ground
Code Section Wiring Diagram Name
ABS BRC Anti-lock Brake System
A/C,M MTC Manual Air Conditioner
APPS1 EC Accelerator Pedal Position Sensor
A/F EC Air Fuel Ratio Sensor 1
A/FH EC Air Fuel Ratio Sensor 1 Heater
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC ASCD Brake Switch
ASC/SW EC ASCD Steering Switch
ASCBOF EC ASCD Brake Switch
ASCIND EC ASCD Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
BACK/L LT Back-up Lamp
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
B/DOOR BL Back Door Opener
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
COOL/F EC Cooling Fan Control
COMBSW LT Combination Switch
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
DTRL LT Headlamp - With Daytime Light System
ECTS EC Engine Coolant Temperature Sensor
ENGSS AT Engine Speed Signal
EPS STC Electronic Controlled Power Steering
ETC1 EC Electric Throttle Control Function

HARNESS
PG-59
< SERVICE INFORMATION >
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ETC2 EC Throttle Control Motor Relay
ETC3 EC Throttle Control Motor
F/FOG LT Front Fog Lamp
F/PUMP EC Fuel Pump
FTS AT A/T Fluid Temperature Sensor
FTS CVT CVT Fluid Temperature Sensor Circuit
FTTS EC Fuel Tank Temperature Sensor
FUEL EC Fuel Ignition System Function
HEATER MTC Heater System
H/LAMP LT Headlamp
H/PHON AV Hands Free Telephone
HORN WW Horn
HO2S2 EC Heated Oxygen Sensor 2
HO2S2H EC Heated Oxygen Sensor 2 Heater
IATS EC Intake Air Temperature Sensor
IGNSYS EC Ignition System
I/KEY BL Intelligent Key System
ILL LT Illumination
INJECT EC Injector
INT/L LT Room/Map, Vanity and Luggage Lamps
IVC EC Intake Valve Timing Control Solenoid Valve
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
LPSV AT Line Pressure Solenoid Valve
LPSV CVT Line Pressure Solenoid Valve
L/USSV CVT Lock-up Select Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN AT Main Power Supply and Ground Circuit
MAIN EC Main Power Supply and Ground Circuit
METER DI Speedometer, Tachometer, Temp. and Fuel Gauges
MIL/DL EC Malfunction Indicator Lamp
MIRROR GW Door Mirror
NATS BL Nissan Anti-Theft System
NONDTC AT Non-detectable Item
NONDTC CVT Non-detectable Item
ODSW CVT Overdrive Control Switch
OVRCSV AT Over Run Clutch Solenoid Valve
P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PNP/SW AT Park/Neutral Position Switch
PNP/SW CVT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (POS)
POWER CVT Transmission Control Module (Power Supply)
PRE/SE EC EVAP Control System Pressure Sensor
PRIPS CVT Primary Pressure Sensor
PRSCVT CVT Primary Speed Sensor CVT (Revolution Sensor)
PT/SEN AT Powertrain Revolution Sensor
RP/SEN EC Refrigerant Pressure Sensor
SECPS CVT Secondary Pressure Sensor
SECPSV CVT Secondary Speed Sensor CVT (Revolution Sensor)