2005 NISSAN NAVARA light

PREPARATION
ATC-17
C
D
E
F
G
H
I
K
L
MA
B
AT C
Recovery/Recycling/
Recharging equipment (ACR4)Function: Refrigerant recovery and
recycling and recharging
Electrical leak detectorPower supply:
DC 12V (Cigarette lighter)
(J-43926)
Refrigerant dye leak detection kit
Kit includes:
(J-42220)
UV lamp and UV safety goggles
(J-41459)
HFC-134a (R-134a) dye injector
Use with J-41447, 1/4 ounce
bottle
(J-41447)
HFC-134a (R-134a) fluorescent
leak detection dye
(Box of 24, 1/4 ounce bottles)
(J-43872)
Refrigerant dye cleanerPower supply:
DC 12V (Battery terminal)
(J-42220)
UV lamp and UV safety gogglesPower supply:
DC 12V (Battery terminal)
For checking refrigerant leak when
fluorescent dye is installed in A/C
system
Includes:
UV lamp and UV safety goggles
(J-41447)
HFC-134a (R-134a) fluorescent
leak detection dye
(Box of 24, 1/4 ounce bottles)Application: For HFC-134a (R-134a)
PA G o i l
Container: 1/4 ounce (7.4 cc) bottle
(Includes self-adhesive dye
identification labels for affixing to
vehicle after charging system with
dye.) Tool number
Tool nameDescription
RJIA0195E
SHA705EB
ZHA200H
SHA438F
SHA439F

ATC-58
TROUBLE DIAGNOSIS
CHECKING DISCHARGE AIR
1. Press MODE switch four times and the DEF switch.
2. Each position indicator should change shape (on display).
3. Confirm that discharge air comes out according to the air distri-
bution table. Refer toAT C - 3 0 , "
Discharge Air Flow".
Mode door position is checked in the next step.
If NG, go to trouble diagnosis procedure forAT C - 6 3 , "
Mode Door
Motor Circuit".
If OK, continue the check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual
inspection) and intake door position is at fresh when the DEF or D/F
is selected.
CHECKING RECIRCULATION
1. Press recirculation ( ) switch one time. Recirculation indica-
tor should illuminate.
2. Press recirculation ( ) switch one more time. Recirculation
indicator should go off.
3. Listen for intake door position change (blower sound should
change slightly).
If NG, go to trouble diagnosis procedure forAT C - 7 7 , "
Intake Door
Motor Circuit".
If OK, continue next check.
NOTE:
Confirm that the compressor clutch is engaged (sound or visual
inspection) and intake door position is at fresh when the DEF or D/F is selected.
CHECKING TEMPERATURE DECREASE
1. Rotate temperature control dial (driver side) counterclockwise
until 18°C(60°F) is displayed.
2. Check for cold air at appropriate discharge air outlets.
If NG, listen for sound of air mix door motor operation. If OK, go to
trouble diagnosis procedure forAT C - 9 3 , "
Insufficient Cooling".Ifair
mix door motor appears to be malfunctioning, go toAT C - 7 1 , "
DIAG-
NOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR (DRIVER)"
orAT C - 7 3 , "DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR
MOTOR (PASSENGER)".
If OK, continue the check.
MJIB0338E
MJIB0284E
MJIB0339E
MJIB0340E

ATC-98
TROUBLE DIAGNOSIS
High-pressure Side is Too Low and Low-pressure Side is Too High
Both High- and Low-pressure Sides are Too Low
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too low and
low-pressure side is too high.High- and low-pressure sides
become equal soon after com-
pressor operation stops.Compressor pressure opera-
tion is improper.
¯
Damaged inside compressor
packings.Replace compressor.
No temperature difference
between high- and low-pres-
sure sides.Compressor pressure opera-
tion is improper.
¯
Damaged inside compressor
packings.Replace compressor.
AC356A
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.
lThere is a big temperature
difference between liquit
tand outlet and inlet. Outlet
temperature is extremely
low.
lLiquid tank inlet and expan-
sion valve are frosted.Liquid tank inside is slightly
clogged.
lReplace liquid tank.
lCheck lubricant for contami-
nation.
lTemperature of expansion
valve inlet is extremely low
as compared with areas
near liquid tank.
lExpansion valve inlet may
be frosted.
lTemperature difference
occurs somewhere in high-
pressure side.High-pressure pipe located
between liquit tank and expan-
sion valve is clogged.
lCheck and repair malfunc-
tioning parts.
lCheck lubricant for contami-
nation.
Expansion valve and liquid
tank are warm or only cool
when touched.Low refrigerant charge.
¯
Leaking fittings or compo-
nents.Check refrigerant system for
leaks. Refer toATC-150,
"Checking for Refrigerant
Leaks".
There is a big temperature dif-
ference between expansion
valve inlet and outlet while the
valve itself is frosted.Expansion valve closes a little
compared with the specifica-
tion.
¯
1. Improper expansion valve
adjustment.
2. Malfunctioning expansion
valve.
3. Outlet and inlet may be
clogged.
lRemove foreign particles by
using compressed air.
lCheck lubricant for contami-
nation.
An area of the low-pressure
pipe is colder than areas near
the evaporator outlet.Low-pressure pipe is clogged
or crushed.
lCheck and repair malfunc-
tioning parts.
lCheck lubricant for contami-
nation.
Air flow volume is too low. Evaporator is frozen.
lCheck intake sensor circuit.
Refer toAT C - 11 4 , "
Intake
Sensor Circuit".
lReplace compressor.
lRepair evaporator fins.
lReplace evaporator.
lRefer toAT C - 8 0 , "Blower
Motor Circuit".
AC353A

ATC-112
TROUBLE DIAGNOSIS
Optical Sensor Circuit
EJS006BY
COMPONENT DESCRIPTION
The optical sensor is located in the center of the defroster grille. It
detects sunload entering through windshield by means of a photo
diode. The sensor converts the sunload into a current value which is
then input into the front air control.
OPTICAL INPUT PROCESS
The front air control includes a processing circuit which averages the variations in detected sunload over a
period of time. This prevents adjustments in the ATC system operation due to small or quick variations in
detected sunload.
For example, consider driving along a road bordered by an occasional group of large trees. The sunload
detected by the optical sensor will vary whenever the trees obstruct the sunlight. The processing circuit aver-
ages the detected sunload over a period of time, so that the (insignificant) effect of the trees momentarily
obstructing the sunlight does not cause any change in the ATC system operation. On the other hand, shortly
after entering a long tunnel, the system will recognize the change in sunload, and the system will react accord-
ingly.
DIAGNOSTIC PROCEDURE FOR SUNLOAD SENSOR
SYMPTOM: Sunload sensor circuit is open or shorted. (44 or 46 is
indicated on front air control as a result of conducting self-diagnosis).
1.CHECK CIRCUIT CONTINUITY BETWEEN SUNLOAD SENSOR AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connector and sunload sensor con-
nector.
3. Check continuity between sunload sensor harness connector
M63 terminal 1 and 2 and front air control harness connector
M61 terminal 29 and 37.
4. Check continuity between sunload sensor harness connector
M63 terminal 1 and 2 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
MJIB0172E
MJIB0181E
1 - 29 : Continuity should exist.
2 - 37 : Continuity should exist.
1, 2 - Ground. : Continuity should not exist.
MJIB0086E

ATC-150
REFRIGERANT LINES
CAUTION:
Replace the O-rings on the A/C low-pressure flexible A/C hose and the high-pressure A/C pipe with
new ones. Apply compressor oil to the O-rings for installation.
Removal and Installation for Expansion ValveEJS006CZ
REMOVAL
1. Discharge the refrigerant. Refer toATC-138, "HFC-134a (R-134a) Service Procedure".
2. Remove the heater and cooling unit assembly. Refer toATC-126, "
REMOVAL".
3. Remove the heater core and evaporator pipes grommet.
4. Remove the expansion valve.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
lReplace the O-rings on then expansion valve and the A/C refrigerant pipes with new ones, then
apply compressor oil to them for installation.
lAfter charging refrigerant, check for leaks.
Checking for Refrigerant LeaksEJS006D1
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection 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 1 to 2 inches 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.
Checking System for Leaks Using the Fluorescent Leak DetectorEJS006D2
1. Check A/C system for leaks using the UV lamp and safety goggles [SST: J-42220] in a low sunlight area
(area without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner [SST: J-43872] to prevent future mis-
diagnosis.
4. Perform a system performance check and verify the leak repair with an approved electronic refrigerant
leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and lubricants, may falsely trigger the leak detector. Make sure the surfaces to be
checked are clean.
Cleanwithadryclothorblowoffwithshopair.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.Expansion valve bolts : 4 N·m (0.41 kg-m, 35 in-lb)
A/C refrigerant pipe to expansion valve bolt : Refer toATC-140, "
Components"
.

AV-34
TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
PFP:00000
Audio Unit (1CD Player Type)EKS00Q6B
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
2
(O)Ground Illumination signal Input ONLighting switch is ON. Approx. 12 V
Lighting switch is OFF. Approx. 0 V
3
(Y)Ground Battery power supply Input ON – Battery voltage
4
(Y)–TELmute – – – –
6
(V)Ground ACC power supply Input ACC – Battery voltage
7
(BR)5
(L)Audio signal front LH Output ON Sound output
8
(W)GroundVehicle speed signal
(2-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25
MPH).
9
(L)10
(V)Audio signal rear LH Output ON Sound output
12
(SB)– Immobilizer – – – –
13
(LG)11
(V)Audio signal front RH Output ON Sound output
15
(GR)16
(V)Audio signal rear RH Output ON Sound output
19
(W)–TELin(-) – – – –
SKIB1990E
ELF1080D
SKIB1990E
SKIB1990E
SKIB1990E

TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
AV-35
C
D
E
F
G
H
I
J
L
MA
B
AV
Audio Unit (6CD Player Type) Without NAVIEKS00Q6C
20
(P)22
(L)Remote control signal A Input ONKeep pushing MODE
switch.Approx. 0 V
Keep pushing SEEK
UP switch.Approx. 1.7 V
Keep pushing VOL UP
switch.Approx. 3.3 V
Except for above. Approx. 5 V
21
(W)22
(L)Remote control signal B Input ONKeep pushing POWER
switch.Approx. 0 V
Keep pushing SEEK
DOWN switch.Approx. 1.7 V
Keep pushing VOL
DOWN switch.Approx. 3.3 V
Except for above. Approx. 5 V
22
(L)Ground Remote control ground – ON – Approx. 0 V
24
(L)–TELin(+) – – – – Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
2
(BR)1
(L)Audio signal front LH Output ON Sound output
4
(LG)3
(V)Audio signal front RH Output ON Sound output
6
(Y)Ground Battery power supply Input ON – Battery voltage
8
(O)Ground Illumination signal Input ONLighting switch is ON. Approx. 12 V
Lighting switch is OFF. Approx. 0 V
10
(V)Ground ACC power supply Input ACC – Battery voltage
SKIB1990E
SKIB1990E

TERMINALS AND REFERENCE VALUE FOR CONTROL UNIT
AV-37
C
D
E
F
G
H
I
J
L
MA
B
AV
Audio Unit (With NAVI)EKS00Q6D
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+-Ignition
switchOperation
3
(Y)–Communication
signal (H)Input/
output–– –
4
(R)–Communication
signal (L)Input/
output–– –
10
(W)11
(O)TEL voice signal Input ON TEL voice output
12
(O)13
(W)Voice guidance signal Input ON Voice guidance output
17 Ground Shield (TEL voice) – ON – Approx. 0 V
18 Ground Shield (Guide voice) – ON – Approx. 0 V
22
(BR)23
(L)Audio signal front LH Output ON Sound output
24
(L)25
(V)Audio signal rear LH Output ON Sound output
26
(P)35
(L)Remote control signal A Input ONKeep pushing SOURCE
switch.approx. 0 V
Keep pushing MENU
UP switch.Approx. 1.2 V
Keep pushing MENU
DOWN switch.Approx. 2.5 V
Keep pushing ENTER
switch.Approx. 3.7 V
Except for above. Approx. 5 V
27
(V)Ground ACC power supply Input ACC – Battery voltage
28
(B)GroundIllumination control sig-
nalInput ONIllumination control
switch is operated by
lighting switch in ON
positionChanges between approx. 0 V
and approx. 12 V
SKIB1990E
SKIB1990E
SKIB1990E
SKIB1990E