sensor NISSAN VERSA 2006 Workshop Service Repair Manual

LT-102
INTERIOR ROOM LAMP
Revision: June 20062007 Versa
NOTE:
Vehicles without intelligent key system display this item, but cannot be monitored.
ACTIVE TEST
Display Item List
WORK SUPPORT
Display Item List
DATA MONITOR
Display Item List
DOOR SW - DR “ON/OFF”Displays status of front door LH as judged from front door switch LH signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from front door switch
RH signal.
DOOR SW - RR “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from rear door switch
RH signal.
DOOR SW - RL “ON/OFF”Displays “Door open (ON)/Door closed (OFF) ” status, determined from rear door switch
LH signal.
LOCK STATUS “ON/OFF”Display status (door is locked: ON/door is unlocked: OFF) of front door lock actuator LH
(unlock sensor) judged from the front door lock actuator LH (unlock sensor) signal.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking
detection switch in the front door LH.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in
front door RH.
I− KEY LOCK
NOTE“ON/OFF” Displays “Locked (ON)/Other (OFF)” status, determined from lock signal.
I− KEY UNLOCK
NOTE“ON/OFF” Displays “Unlocked (ON)/Other (OFF)” status, determined from unlock signal. Monitor item Contents
Test item Description
INT LAMP Interior room lamp can be operated by any ON-OFF operations.
Item Description CONSULT-II
ROOM LAMP TIMER SET Interior room lamp battery saver timer setting can be changed.MODE 1: 30 min.
MODE 2: 60 min.
ROOM LAMP BAT SAV SETInterior room lamp battery saver control mode can be changed in this mode.
Select interior room lamp battery saver control mode between ON and OFF.ON/OFF
Monitor item Contents
IGN ON SW “ON/OFF”Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from ignition switch sig-
nal.
KEY ON SW “ON/OFF” Displays “Key inserted (ON)/key removed (OFF)” status judged from key switch signal.
DOOR SW - DR “ON/OFF”Displays status of front door LH as judged from front door switch LH signal. (Door is
open: ON/Door is closed: OFF)
DOOR SW - AS “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from front door switch
RH signal.
DOOR SW - RR “ON/OFF”Displays “Door open (ON)/Door closed (OFF)” status, determined from rear door switch
RH signal.
DOOR SW - RL “ON/OFF”Displays “Door open (ON)/Door closed (OFF) ” status, determined from rear door switch
LH signal.
LOCK STATUS “ON/OFF”Display status (door is locked: ON/door is unlocked: OFF) of front door lock actuator LH
(unlock sensor) judged from the front door lock actuator LH (unlock sensor) signal.
CDL LOCK SW “ON/OFF”Displays “Door locked (ON)/Door unlocked (OFF) status, determined from locking
detection switch in front door LH.
CDL UNLOCK SW “ON/OFF”Displays “Door unlocked (OFF)” status, determined from locking detection switch in pas-
senger’s door.

PREPARATION
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PREPARATIONPFP:00002
Special Service ToolsEBS00UHN
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEBS00UHO
Tool number
(Kent-Moore No.)
Tool nameDescription
ST25051001
(J-25695-1)
Oil pressure gaugeMeasuring oil pressure
Maximum measuring range: 2,452 kPa (25
kg/cm
2 , 356 psi)
ST25052000
(J-25695-2)
HoseAdapting oil pressure gauge to oil pan (upper)
KV10115801
(J-38956)
Oil filter wrenchRemoving oil filter
a: 64.3 mm (2.531 in)
WS39930000
(—)
Tube presserPressing the tube of liquid gasket
NT050
S-NT559
S-NT375
NT052
Tool nameDescription
Power toolLoosening nuts and bolts
Deep socketRemoving and installing oil pressure sensor
a: 26 mm (1.02 in)
PBIC0190E
PBIC2072E

MTC-1
MANUAL AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION MTC
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B
MTC
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Procedures without Cowl Top Cover ..... 4
Precautions for Working with HFC-134a (R-134a) ..... 4
General Refrigerant Precautions .............................. 5
Oil Precautions ......................................................... 5
Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 5
O-RING AND REFRIGERANT CONNECTION ..... 6
Precautions for Servicing Compressor ..................... 8
Precautions for Service Equipment .......................... 9
RECOVERY/RECYCLING EQUIPMENT .............. 9
ELECTRONIC LEAK DETECTOR ........................ 9
VACUUM PUMP ................................................... 9
MANIFOLD GAUGE SET ...................................... 9
SERVICE HOSES ................................................. 9
SERVICE COUPLERS ........................................ 10
REFRIGERANT WEIGHT SCALE ...................... 10
CHARGING CYLINDER ...................................... 10
Precautions for Leak Detection Dye ....................... 10
IDENTIFICATION LABEL FOR VEHICLE ........... 10
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12
HFC-134a (R-134a) Service Tools and Equipment ... 12
Commercial Service Tools ...................................... 15
REFRIGERATION SYSTEM ..................................... 16
Refrigerant Cycle ................................................... 16
REFRIGERANT FLOW ....................................... 16
FREEZE PROTECTION ..................................... 16
Refrigerant System Protection ............................... 16
REFRIGERANT PRESSURE SENSOR ............. 16
PRESSURE RELIEF VALVE ............................... 16
Component Layout ................................................. 17OIL ............................................................................. 18
Maintenance of Oil Quantity in Compressor ........... 18
OIL ....................................................................... 18
OIL RETURN OPERATION ................................. 18
OIL ADJUSTING PROCEDURE FOR COMPO-
NENTS REPLACEMENT EXCEPT COMPRES-
SOR ..................................................................... 19
OIL ADJUSTING PROCEDURE FOR COM-
PRESSOR REPLACEMENT ............................... 19
AIR CONDITIONER CONTROL ............................... 21
Control Operation ................................................... 21
BLOWER CONTROL DIAL ................................. 21
TEMPERATURE CONTROL DIAL ...................... 21
MODE DOOR CONTROL DIAL .......................... 21
INTAKE DOOR LEVER ....................................... 21
REAR WINDOW DEFOGGER SWITCH ............. 21
A/C SWITCH (IF EQUIPPED) ............................. 21
Discharge Air Flow ................................................. 22
System Description ................................................. 23
SWITCHES AND THEIR CONTROL FUNCTION ... 23
CAN Communication System Description .............. 23
TROUBLE DIAGNOSIS ............................................ 24
CONSULT-II Function (BCM) ................................. 24
CONSULT-II START PROCEDURE .................... 24
DATA MONITOR ................................................. 24
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 24
WORK FLOW ...................................................... 24
SYMPTOM TABLE .............................................. 24
Component Parts and Harness Connector Location ... 25
ENGINE COMPARTMENT .................................. 25
PASSENGER COMPARTMENT ......................... 26
Schematic ............................................................... 27
Wiring Diagram — Heater — .................................. 28
WITHOUT A/C ..................................................... 28
Wiring Diagram — A/C,M — ................................... 29
Operational Check .................................................. 33
CHECKING BLOWER ......................................... 33
CHECKING DISCHARGE AIR ............................ 33
CHECKING RECIRCULATION ........................... 33

MTC-2Revision: June 20062007 Versa CHECKING TEMPERATURE DECREASE ......... 33
CHECKING TEMPERATURE INCREASE .......... 33
CHECKING A/C SWITCH (IF EQUIPPED) ......... 33
CHECKING DEFROST A/C SWITCH (IF
EQUIPPED) ......................................................... 33
Mode Door .............................................................. 34
INSPECTION FLOW ........................................... 34
Air Mix Door ............................................................ 35
INSPECTION FLOW ........................................... 35
Intake Door ............................................................. 36
INSPECTION FLOW ........................................... 36
Blower Motor Circuit ............................................... 37
INSPECTION FLOW ........................................... 37
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ............................................................... 38
Magnet Clutch Circuit (If Equipped) ........................ 41
INSPECTION FLOW ........................................... 41
SYSTEM DESCRIPTION .................................... 42
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 42
Insufficient Cooling ................................................. 50
INSPECTION FLOW ........................................... 50
PERFORMANCE TEST DIAGNOSIS ................. 52
PERFORMANCE CHART ................................... 54
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE ................................................................... 55
Insufficient Heating ................................................. 58
INSPECTION FLOW ........................................... 58
Noise ...................................................................... 60
INSPECTION FLOW ........................................... 60
CONTROLLER .......................................................... 61
Removal and Installation ........................................ 61
REMOVAL ........................................................... 61
INSTALLATION .................................................... 61
Disassembly and Assembly .................................... 62
THERMO CONTROL AMPLIFIER ............................ 63
Removal and Installation ........................................ 63
REMOVAL ........................................................... 63
INSTALLATION .................................................... 63
A/C UNIT ASSEMBLY .............................................. 64
Removal and Installation ........................................ 64
REMOVAL ........................................................... 64
INSTALLATION .................................................... 65
Disassembly and Assembly .................................... 66
BLOWER MOTOR .................................................... 68
Removal and Installation ........................................ 68
REMOVAL ........................................................... 68
INSTALLATION .................................................... 68
INTAKE DOOR .......................................................... 69
Intake Door Cable Adjustment ................................ 69
AIR MIX DOOR ......................................................... 70
Air Mix Door Cable Adjustment .............................. 70
MODE DOOR ............................................................ 71
Mode Door Cable Adjustment ................................ 71
BLOWER FAN RESISTOR ....................................... 72
Removal and Installation ........................................ 72
REMOVAL ........................................................... 72
INSTALLATION .................................................... 72HEATER CORE .........................................................73
Removal and Installation .........................................73
REMOVAL ............................................................73
INSTALLATION ....................................................73
AIR CONDITIONER FILTER .....................................74
Removal and Installation .........................................74
FUNCTION ..........................................................74
REPLACEMENT TIMING ....................................74
REPLACEMENT PROCEDURES ........................74
DUCTS AND GRILLES .............................................75
Removal and Installation .........................................75
CENTER VENTILATOR GRILLES .......................76
SIDE VENTILATOR GRILLES (LH/RH) ...............76
DEFROSTER NOZZLE AND SIDE
DEFROSTER DUCTS (LH/RH) ...........................77
SIDE VENTILATOR DUCTS ................................77
CENTER VENTILATOR DUCTS .........................78
SIDE FOOT DUCTS ............................................78
FLOOR DUCTS ...................................................78
REFRIGERANT LINES .............................................80
HFC-134a (R-134a) Service Procedure ..................80
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ...................................................................80
Components ............................................................82
Removal and Installation of Compressor ................84
REMOVAL ............................................................84
INSPECTION FOR CLUTCH DISC TO PULLEY
CLEARANCE .......................................................85
INSTALLATION ....................................................85
Removal and Installation of Low-pressure Flexible
Hose ........................................................................85
REMOVAL ............................................................85
INSTALLATION ....................................................86
Removal and Installation of High-pressure Flexible
Hose ........................................................................86
REMOVAL ............................................................86
INSTALLATION ....................................................87
Removal and Installation of High-pressure Pipe .....87
REMOVAL ............................................................87
INSTALLATION ....................................................87
Removal and Installation of Refrigerant Pressure
Sensor .....................................................................88
REMOVAL ............................................................88
INSTALLATION ....................................................88
Removal and Installation of Condenser ..................88
REMOVAL ............................................................88
INSTALLATION ....................................................88
Removal and Installation of Liquid Tank .................89
REMOVAL ............................................................89
INSTALLATION ....................................................89
Removal and Installation of Evaporator ..................90
REMOVAL ............................................................90
INSTALLATION ....................................................90
Removal and Installation of Expansion Valve .........91
REMOVAL ............................................................91
INSTALLATION ....................................................91
Checking for Refrigerant Leaks ..............................92
Checking System for Leaks Using the Fluorescent
Leak Detector ..........................................................92

PRECAUTIONS
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General Refrigerant PrecautionsEJS0056X
WA RN ING:

Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If
accidental system discharge occurs, ventilate work area before resuming service. Additional
health and safety information may be obtained from refrigerant and oil manufacturers.

Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.

Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.

Do not store or heat refrigerant containers above 52°C (126° F).

Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.

Do not intentionally drop, puncture, or incinerate refrigerant containers.

Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.

Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent
suffocation.

Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condi-
tioning systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a)
have been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause
injury or property damage. Additional health and safety information may be obtained from refriger-
ant manufacturers.
Oil PrecautionsEJS0056Y

Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If oil
other than that specified is used, compressor malfunction is likely to occur.

The specified HFC-134a (R-134a) oil rapidly absorbs moisture from the atmosphere. The following han-
dling precautions must be observed:
–When removing refrigerant components from a vehicle, immediately cap (seal) the component to minimize
the entry of moisture from the atmosphere.
–When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just before con-
necting the components. Connect all refrigerant loop components as quickly as possible to minimize the
entry of moisture into system.
–Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without proper
sealing, oil will become moisture saturated and should not be used.

Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refrigerant. If acciden-
tal system discharge occurs, ventilate work area before resuming service. Additional health and safety
information may be obtained from refrigerant and oil manufacturers.

Do not allow oil (NISSAN A/C System Oil) to come in contact with styrofoam parts. Damage may result.
Precautions for Refrigerant ConnectionEJS0056Z
A new type refrigerant connection has been introduced to all refrigerant lines except the following location.

Expansion valve to evaporator

Refrigerant pressure sensor to condenser
FEATURES OF NEW TYPE REFRIGERANT CONNECTION

The O-ring has been relocated. It has also been provided with a groove for proper installation. This elimi-
nates the chance of the O-ring being caught in, or damaged by, the mating part. The sealing direction of
the O-ring is now set vertically in relation to the contacting surface of the mating part to improve sealing
characteristics.

PRECAUTIONS
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CAUTION:
The new and former refrigerant connections use different O-ring configurations. Do not confuse O-
rings since they are not interchangeable. If a wrong O-ring is installed, refrigerant will leak at, or
around, the connection.
O-Ring Part Numbers and Specifications
WA RN ING:
Make sure all refrigerant is discharged into the recycling equipment and the pressure in the system is
less than atmospheric pressure. Then gradually loosen the discharge side hose fitting and remove it.
CAUTION:
When replacing or cleaning refrigerant cycle components, observe the following.

When the compressor is removed, store it in the same position as it is when mounted on the vehi-
cle. Doing so will cause oil to enter the low-pressure chamber.

When connecting tubes, always use a torque wrench and a back-up wrench.
SJIA1327E
Connection type Piping connection point Part number QTY O-ring size
NewCondenser to high-pressure flexible hose 92472 N8210 1 12
Condenser to high-pressure pipe 92471 N8210 1 8
Low-pressure flexible hose to expansion valve 92473 N8210 1 16
High-pressure pipe to expansion valve 92471 N8210 1 8
Compressor to low-pressure flexible hose 92474 N8210 1 19
Compressor to high-pressure flexible hose 92472 N8210 1 12
Liquid tank to condenser pipeInlet
92471 N82101
8
Outlet 1
FormerRefrigerant pressure sensor to condenser J2476 89956 1 10
Expansion valve to evaporatorInlet 92471 N8200 2 12
Outlet 92473 N8200 2 16

MTC-16
REFRIGERATION SYSTEM
Revision: June 20062007 Versa
REFRIGERATION SYSTEMPFP:KA990
Refrigerant CycleEJS00576
REFRIGERANT FLOW
The refrigerant flows in the standard pattern, that is, through the compressor, the condenser with liquid tank,
through the evaporator, and back to the compressor. The refrigerant evaporation through the evaporator is
controlled by an externally equalized expansion valve, located inside the evaporator case.
FREEZE PROTECTION
Under usual operating conditions, when the A/C is switched ON, the compressor runs continuously, and the
evaporator pressure, and temperature is controlled by the compressor to prevent freeze up.
Refrigerant System ProtectionEJS00577
REFRIGERANT PRESSURE SENSOR
The refrigerant system is protected against excessively high or low pressures by the refrigerant pressure sen-
sor, located on the condenser. If the system pressure rises above, or falls below the specifications, the refrig-
erant pressure sensor detects the pressure inside the refrigerant line and sends the voltage signal to the ECM.
ECM makes the A/C relay go OFF and stops the compressor when pressure on the high-pressure side
detected by refrigerant pressure sensor is over about 2,746 kPa (27.46 bar, 28.0 kg/cm
2 , 398 psi), or below
about 134 kPa (1.34 bar, 1.4 kg/cm
2 , 20 psi).
PRESSURE RELIEF VALVE
The refrigerant system is also protected by a pressure relief valve, located in the rear head of the compressor.
When the pressure of refrigerant in the system increases to an unusual level [more than 3.8 MPa (38 bar,
38.76 kg/cm
2 , 551 psi)], the release port on the pressure relief valve automatically opens and releases refrig-
erant into the atmosphere.
RJIA0849E

TROUBLE DIAGNOSIS
MTC-25
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Revision: June 20062007 Versa
Component Parts and Harness Connector LocationEJS0057G
ENGINE COMPARTMENT
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.MTC-50
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.MTC-58
Noise Go to Trouble Diagnosis Procedure for Noise.MTC-60
Symptom Reference Page
1. Refrigerant pressure sensor E17 2. A/C compressor F3
WJIA2235E

MTC-44
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
7. CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND BCM
1. Turn ignition switch OFF.
2. Disconnect front air control and BCM connector.
3. Check continuity between front air control harness connector
M33 (A) terminal 1and BCM harness connector M18 (B) termi-
nal 27.
OK or NG
OK >> GO TO 8.
NG >> Repair harness or connector.
8. CHECK REFRIGERANT PRESSURE SENSOR
1. Reconnect front air control connector and BCM connector.
2. Check refrigerant pressure sensor. Refer to EC-586, "
REFRIGERANT PRESSURE SENSOR" .
.OK or NG
OK >>
WITH CONSULT-II
GO TO 9.

WITHOUT CONSULT-II
GO TO 10.
NG >> Replace as necessary.
9. CHECK BCM INPUT (FAN ON) SIGNAL
Check FAN ON/OFF signal. Refer to MTC-24, "
CONSULT-II Func-
tion (BCM)" .
OK or NG
OK >> GO TO 12.
NG >> GO TO 10.1 - 27 :Continuity should exist
SJIA0759E
FAN CONTROL DIAL ON : FAN ON SIG ON
FAN CONTROL DIAL OFF : FAN ON SIG OFF
R J I A 1111E

TROUBLE DIAGNOSIS
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8. CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine control temperature sensor. Refer to EC-200, "
DTC P0117, P0118 ECT SENSOR" .
OK or NG
OK >> System OK.
NG >> Repair or replace as necessary. Retest.
9. CHECK HEATER HOSES
Check heater hoses for proper installation.
OK or NG
OK >> GO TO 10.
NG >> Repair /replace as necessary. Retest GO TO 7.
10. BACK FLUSH HEATER CORE
1. Back flush heater core.
2. Drain the water from the system.
3. Refill system with new engine coolant. Refer to CO-8, "
Changing Engine Coolant" .
4. Start engine and warm it up to normal operating temperature.
5. Touch both the inlet and outlet heater hoses.
Is the inlet hose hot and the outlet hose warm? YES or NO
YES >> System OK.
NO >> Replace heater core and refill engine coolant. Refer to MTC-73, "
HEATER CORE" .