ATC-12
PRECAUTIONS
Revision: 2005 July 2005 FX
CAUTION:
The new and former refrigerant connections use different O-ring configurations. Never 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
WARNING:
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 way as it is when mounted on the car. Fail-
ure to do so will cause lubricant to enter the low-pressure chamber.
When connecting tubes, always use a torque wrench and a back-up wrench.
After disconnecting tubes, immediately plug all openings to prevent entry of dirt and moisture.
When installing an air conditioner in the vehicle, connect the pipes at the final stage of the opera-
tion. Never remove the seal caps of pipes and other components until just before required for con-
nection.
Allow components stored in cool areas to warm to working area temperature before removing seal
caps. This prevents condensation from forming inside A/C components.
Thoroughly remove moisture from the refrigeration system before charging the refrigerant.
Always replace used O-rings.
When connecting tube, apply lubricant to circle of the O-rings shown in illustration. Be careful not
to apply lubricant to threaded portion.
O-ring must be closely attached to dented portion of tube.
When replacing the O-ring, be careful not to damage O-ring and tube.
Connect tube until a click can be heard, then tighten the nut or bolt by hand until snug. Make sure
that the O-ring is installed to tube correctly.
Connection type Piping connection point Part number QTY O-ring size
New Low-pressure pipe 1 to low-pressure pipe 2 (One-touch joint) 92473 N8221 2 16
Low-pressure pipe 2 to expansion valve 92473 N8210 1 16
High-pressure pipe 1 to high-pressure pipe 2 (One-touch joint) 92471 N8221 2 8
High-pressure pipe 3 to expansion valve 92471 N8210 1 8
High-pressure pipe 2 to high-pressure pipe 3 (One-touch joint) 92471 N8221 2 8
Condenser to high-pressure flexible hose (One-touch joint) 92472 N8221 2 12
Condenser to high-pressure pipe 1 (One-touch joint) 92471 N8221 2 8
Low-pressure flexible hose to low-pressure pipe 1 (One-touch joint) 92473 N8221 2 16
Compressor to low-pressure flexible hose 92474 N8210 1 19
Compressor to high-pressure flexible hose 92472 N8210 1 12
Liquid tank to condenser pipe Inlet
92471 N8210 1
8
Outlet 1
Former Refrigerant pressure sensor to condenser J2476 89956 1 10
Expansion valve to evaporator Inlet 92475 71L00 1 12
Outlet 92475 72L00 1 16
Lubricant name : Nissan A/C System Oil Type S
Part number : KLH00-PAGS0
ATC-18
PREPARATION
Revision: 2005 July 2005 FX
HFC-134a (R-134a) Service Tools and EquipmentAJS00144
Never mix HFC-134a (R-134a) refrigerant and/or its specified lubricant with CFC-12 (R-12) refrigerant and/or
its lubricant.
Separate and non-interchangeable service equipment must be used for handling each type of refrigerant/lubri-
cant.
Refrigerant container fittings, service hose fittings and service equipment fittings (equipment which handles
refrigerant and/or lubricant) are different between CFC-12 (R-12) and HFC-134a (R-134a). This is to avoid
mixed use of the refrigerants/lubricant.
Never use adapters that convert one size fitting to another: refrigerant/lubricant contamination will occur and
compressor malfunction will result.
Tool number
(Kent-Moore No.)
Tool name Description
HFC-134a (R-134a) refrigerant Container color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size
Large container 1/2″ -16 ACME
KLH00-PAGS0
( - )
Nissan A/C System Oil Type S
(DH-PS) Type: Polyalkylene glycol oil (PAG),
type S (DH-PS)
Application: HFC-134a (R-134a)
wobble (swash) plate compressors
(Nissan only)
Capacity: 40 m (1.4 US fl oz., 1.4
Imp fl oz.)
(AC-R2005-NI)
ACR5 A/C Service Center Function: Refrigerant recovery,
recycling and recharging
(J-41995)
Electrical leak detector Power supply:
DC 12 V (Battery terminal)
S-NT196
S-NT197
WJIA0293E
AHA281A
ATC-24
REFRIGERATION SYSTEM
Revision: 2005 July 2005 FX
Operation
1. Control Valve
–By changing high-pressure valve lift amount, built-in compressor control valve executes the following:
Controls high-pressure valve discharge amount.
Changes crankcase pressure in compressor.
Changes angle of wobble (swash) plate.
–Amount of high-pressure valve lift is determined by factors below.
Low-pressure applied to diaphragm
Spring load of set spring
Balance of magnetic force generated by magnet coil
–Electronic control valve (ECV) magnet coil receives electric signal (duty control) from unified meter and A/
C amp. (Auto amp.) Then, magnetic force generated by electric current is changed to control high-pres-
sure valve lift amount.
2. Maximum Cooling High-pressure valve is closed by magnetic force generated by electric signal sent from unified meter and
A/C amp. At this time, cylinder moves full stroke due to pressure balance between inside crankcase (Pc)
and suction line (Ps).
Under this condition, the wobble (swash) plate is set to the maximum stroke position.
3. Capacity Control When no electric signal is sent from unified meter and A/C amp. (current: OFF), high-pressure valve is
opened by spring force.
Since suction pressure is low, it makes the suction port close and the discharge port open. Thus, crank-
case pressure becomes high as high-pressure enters the crankcase.
–The force acts around the journal pin near the wobble (swash) plate, and is generated by the pressure dif-
ference before and behind the piston.
–The drive lug and journal pin are located where the piston generates the highest pressure. Piston pres-
sure is between suction pressure Ps and discharge pressure Pd, which is close to suction pressure Ps. If
crankcase pressure Pc rises due to capacity control, the force around the journal pin makes the wobble
(swash) plate angle decrease and also the piston stroke decrease. In other words, crankcase pressure
SJIA0547E
LUBRICANT ATC-27
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Revision: 2005 July 2005 FX
LUBRICANTPFP:KLG00
Maintenance of Lubricant Quantity in CompressorAJS00149
The lubricant in the compressor circulates through the system with the refrigerant. Add lubricant to compres-
sor when replacing any component or after a large refrigerant leakage occurred. It is important to maintain the
specified amount.
If lubricant quantity is not maintained properly, the following malfunctions may result:
Lack of lubricant: May lead to a seized compressor.
Excessive lubricant: Inadequate cooling (thermal exchange interference)
LUBRICANT
LUBRICANT RETURN OPERATION
Adjust the lubricant quantity according to the test group shown below.
1. CHECK LUBRICANT RETURN OPERATION
Can lubricant return operation be performed?
A/C system works properly.
There is no evidence of a large amount of lubricant leakage.
CAUTION:
If excessive lubricant leakage is noted, never perform the lubricant return operation.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. PERFORM LUBRICANT RETURN OPERATION, PROCEEDING AS FOLLOWS
1. Start engine, and set the following conditions:
–Engine speed: Idling to 1,200 rpm
–A/C switch: ON
–Blower speed: Max. position
–Temp. control: Optional [Set so that intake air temperature is 25 to 30 °C (77 to 86 °F).]
–Intake position: Recirculation (REC)
2. Perform lubricant return operation for about 10 minutes.
3. Stop engine.
>> GO TO 3.
3. CHECK REPLACEMENT PART
Should the compressor be replaced?
YES >> GO TO AT C - 2 9 , "LUBRICANT ADJUSTING PROCEDURE FOR COMPRESSOR REPLACE-
MENT" .
NO >> GO TO AT C - 2 8 , "
LUBRICANT ADJUSTING PROCEDURE FOR COMPONENTS REPLACE-
MENT EXCEPT COMPRESSOR" .
Name : NISSAN A/C System Oil Type S
Part number : KLH00-PAGS0
AV-40
AUDIO
Revision: 2005 July 2005 FX
Noise InspectionAKS005TC
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition Possible cause
Occurs only when
engine is ON. A continuous growling noise occurs. The speed of the
noise varies with changes in the engine speed.
Ignition condenser
A whistling noise occurs while the engine speed is
high. A booming noise occurs while the engine is run-
ning and the lighting switch is ON.
Alternator
The occurrence of the noise is linked with the operation of the fuel pump.
Fuel pump condenser
Noise only occurs
when various elec-
trical components
are operating. A cracking or snapping sound occurs with the opera-
tion of various switches.
Relay malfunction, radio malfunction
The noise occurs when various motors are operating.
Motor case ground
Motor
The noise occurs constantly, not just under certain conditions.
Rear window defogger coil malfunction
Open circuit in printed heater
Poor ground of antenna amplifier or antenna feeder
line
Mirror type film is attached on the rear window glass
After-market TV antenna and/or electrical accessories
such as radio are attached on the rear window glass.
A cracking or snapping sound occurs while the vehicle is being driven,
especially when it is vibrating excessively.
Poor ground of audio parts
Poor ground due to incorrect installation of parts
Poor wiring connections or a short circuit
INTEGRATED DISPLAY SYSTEM AV-59
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Revision: 2005 July 2005 FX
MAINT Switch (Maintenance Switch)
When “MAINT” switch is pressed, display vehicle information screen. As vehicle information, it indicates
engine oil, tire rotation, tire pressure.
Pressing “MAINT” switch once cycles display from engine oil →tire rotation →tire pressure →display
OFF →engine oil.
Engine Oil and Tire Rotation
Operating the joystick left/right, replace distance can be set.
When journey distance is the same as replace distance, alert is
displayed. (SERVICE ALERT setting is ON.)
Selected replace distance is 0 - 7,500 miles (0 - 12,000 km) in
increments of 500 mile (800 km).
Press and hold “TRIP RESET or MAINT” switch for 1.5 seconds
or longer, reset present journey distance.
During driving, cannot change settings.
Tire Pressure
Tire pressure signal is received from BCM through CAN commu-
nication line.
Tire pressure is displayed.
When FLAT TIRE signal is received from BCM, “FLAT TIRE” is
displayed.
E/M SWITCH
When “E/M” (English/Metric) switch is pressed, change the unit as followings.
SKIA5918E
SKIA5919E
Unit US Mile,
°F, M P G
Metric km, °C, l/100km
AV-60
INTEGRATED DISPLAY SYSTEM
Revision: 2005 July 2005 FX
SETTING SCREEN
Setting of electric status can be changed by A/C and AV switch. The signal is sent to BCM through display
unit to change vehicle electric system setting.
Display unit is communicating with driver seat control unit.
Pressing “SETTING” switch once cycles display from DISPLAY →LANGUAGE →BEEP SET →SERVICE
ALERT →PERSONALIZED SETTINGS MENU →DISPLAY OFF →DISPLAY.
Using the joystick, setting of each item will become possible.
Adjustable Vehicle Status
NOTE:
Setting in factory shipment is ON. Setting items
Setting
variations Initial
setting Operation
DISPLAY ON/OFF ON It switches displayed/Non-displayed of the screen.
LANGUAGE ENGLISH/
FRANCAIS – It switches displayed language.
BEEP SET ON/OFF ON It selects beep sound ON/OFF during switch operation. How-
ever, even if beep is set OFF, beep for NO OPERATION and
for screen interception are not reset.
SERVICE ALERT ON/OFF OFF It switches displayed/Non-displayed of alert indication.
When the setting is ON, if engine oil or tire rotation will be
replace distance, alert is displayed.
When the setting is OFF, alert is not displayed.
PERSONALIZED
SETTING MENU SLIDE BACK DR
SEAT ON EXIT ON/OFF
ON
NOTEThe driver’s seat automatically moves back and returns to the
original position for exceptional ease of exit and entry. (Models
with automatic drive positioner.)
LIFT STEERING
WHEEL ON EXIT ON/OFF
ON
NOTEThe steering column automatically tilts up and returns to the
original position for exceptional ease of entry and exit. (Models
with automatic drive positioner.)
REMOTE UNLOCK
DOOR LOGIC DR-1ST/ALL DR-1ST This key can switch the unlock doors of the 1st unlocking oper-
ation as follows:
Only the driver side door ⇔All the doors
HORN CHIRP
WITH REMOTE ON/OFF ON This key changes the horn chirp mode occurring when pressing
the LOCK button on the keyfob.
LAMPS FLASH
WITH REMOTE ALL/LOCK/
UNLOCK/OFF ALLThis key changes the hazard indicator flash mode occurring
when pressing the LOCK or UNLOCK button on the keyfob.
AUTO RE-LOCK
TIME 5m/1m/OFF 1m The length of auto door re-lock time can be set. Select the
“Auto Re-Lock timer” key, then move the joystick to adjust the
time.
AUTO HEADLAMP
SENSITIVITY LEVEL 1/2/3/4 LEVEL 2 Automatic light illumination can be set as desired. Select the
“Auto Headlamp Sensitivity” key, then move the joystick to the
left (lower) or right (higher).
AUTO HEADLAMP
OFF DELAY OFF/30/45/60/
90/120/150/ 180 SEC 45 SEC This key can control how long it takes the automatic turn off
timer to extinguish the headlamps in “AUTO” position. Select
the “Auto Headlamp Off Delay” key, then move the joystick to
the left or right to adjust the timer.
SPEED SENSING
WIPER INTERVAL ON/OFF ON This key turns on and off the driving speed dependent intermit-
tent wiper function.
CONFIRM RESET
SETTINGS YES/NO NO When this key is selected and turned on using the “ENTER”
button, all settings mode by PERSONALIZED SETTINGS will
return to the initial conditions.
NAVIGATION SYSTEM AV-101
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Revision: 2005 July 2005 FX
“TRACKING” MODE
To delete the tracking marks on the map, select “Off”.
To leave the tracking marks on the map, select “On”.
NOTE:
When a trail display is turned OFF, trail data is erased from the mem-
ory.
GUIDANCE VOLUME
Description
Following guidance volume setting can be changed.
Activation/Deactivation Setting
The voice prompt can be turned on/off by pressing the “Guidance Volume” button.
Voice Volume Setting
Volume of the voice can be controlled by bending the joystick to left/right.
DISPLAY WITH PUSHED “TRIP” BUTTON
When the “TRIP” button is pushed, the following models will display on the screen.
Warning message (if there are any) →TRIP1 →TRIP2 →FUEL ECONOMY →MAINTENANCE →OFF.
SKIA0559E
SKIA4497E
Display items Display/Setting contents Reference
page
Trip 1 o r Trip2 Elapsed Time Displays driving time with a range of 0000:00:00 to 9999:59:59.
AV-102,
"TRIP 1 OR
TRIP 2"
Driving Distance
[(km) or (miles)] Displays driving distance with a range of 00000.0 to 99999.9.
Average speed
[(km/h) or (MPH)] Displays average speed with a range of 000.0 to 999.9.
Fuel Economy Average Fuel Economy
[(MPG) or (l/100km)] Displays fuel economy with ignition switch ON, average fuel econ-
omy each 30 minutes. AV-102,
"FUEL
ECONOMY"
Distance to Empty [(km) or
(miles)], [(MPG) or (l/100km)] Displays possible driving distance with remaining fuel.
Fuel Economy (MPG) Displays fuel economy each approx. 100 ms.
Maintenance Engine oil Maintenance intervals of engine oil and setting of oil change cycle.
AV-102,
"MAINTE-
NANCE"
Tire rotation Maintenance intervals of tire and setting of tire replacement cycle.
Tire pressure Tire pressure displayed as tire pressure information.