ad blue INFINITI QX4 2005 Factory Service Manual

ATC-14
PREPARATION
Revision: October 20052005 QX56
PREPARATIONPFP:00002
Special Service ToolsEJS003WY
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
HFC-134a (R-134a) Service Tools and EquipmentEJS003WZ
Never mix HFC-134a (R-134a) refrigerant and/or the specified lubricant with CFC-12 (R-12) refrigerant and/or
the 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.
Adapters that convert one size fitting to another must never be used refrigerant/lubricant contamination will
occur and compressor failure will result.
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-38873-A)
Pulley installerInstalling pulley
KV99233130
(J-29884)
Pulley pullerRemoving pulley
LHA171
LHA172
Tool number
(Kent-Moore No.)
Tool nameDescription
HFC-134a (R-134a)
(—)
RefrigerantContainer color: Light blue
Container marking: HFC-134a (R-
134a)
Fitting size: Thread size

large container 1/2”-16 ACME
—
(—)
NISSAN A/C System Lubricant
Type S Type: Poly alkylene glycol oil (PAG),
type S
Application: HFC-134a (R-134a)
swash plate compressors (NISSAN
only)
Lubricity: 40 m (1.4 US fl oz, 1.4 Imp
fl oz)
—
(ACR2005-NI)
ACR5 A/C Service CenterRefrigerant Recovery and Recycling
and Recharging
S-NT196
S-NT197
WJIA0293E

ATC-16
PREPARATION
Revision: October 20052005 QX56
—
(J-39183-C)
Manifold gauge set (with hoses
and couplers)Identification:

The gauge face indicates R-134a.
Fitting size-Thread size

1/2”-16 ACME
Service hoses:

High side hose
(J-39500-72B)

Low side hose
(J-39500-72R)

Utility hose
(J-39500-72Y)Hose color:

Low side hose: Blue with black stripe

High side hose: Red with black stripe

Utility hose: Yellow with black stripe
or green with black stripe
Hose fitting to gauge:

1/2”-16 ACME
Service couplers

High side coupler
(J-39500-20A)

Low side coupler
(J-39500-24A)Hose fitting to service hose:

M14 x 1.5 fitting is optional or perma-
nently attached.
—
(J-39699)
Refrigerant weight scaleFor measuring of refrigerant
Fitting size-Thread size

1/2”-16 ACME
—
(J-39649)
Vacuum pump
(Including the isolator valve)Capacity:

Air displacement: 4 CFM

Micron rating: 20 microns

Oil capacity: 482 g (17 oz)
Fitting size-Thread size

1/2”-16 ACME Tool number
(Kent-Moore No.)
Tool nameDescription
RJIA0196E
S-NT201
S-NT202
S-NT200
S-NT203

AV-90
NAVIGATION SYSTEM
Revision: October 20052005 QX56
Terminals and Reference Value for NAVI Control unitEKS00BJK
Te r m i n a l N o .
(Wire color)
ItemSignal
input/
outputCondition
Vo l ta g e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
1 (B) Ground Ground – ON – 0 V –
2 (Y)
GroundBattery
powerInput OFF – Battery voltageSystem does not
work properly.
3 (Y)
4 (B) Ground Ground – ON – 0 V –
6 (O) Ground ACC signal Input ACC – Battery voltageSystem does not
work properly.
7 (B) 8 (W)Voice guide
signalOutput ONPress the “GUIDE/
VOICE” button.Only route guide
and operation
guide are not
heard.
9–Shield
ground–– – –Audio noise
interference.
14 –Shield
ground–– – –Video display
interference.
15 (B) 17RGB signal
(B: blue)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks yellowish.
16 (BR) 14RGB syn-
chronizing
signalOutput ONPress the “MAP”
button.NAVI screen is
rolling.
17 –Shield
ground–– – –Video display
interference.
18 (R) 17RGB signal
(R: red)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks bluish.
21 (R/W) 17RGB signal
(G: green)Output ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks reddish.
SKIA0171J
SKIA4979E
SKIA0164E
SKIA4977E
SKIA4978E

AV-94
NAVIGATION SYSTEM
Revision: October 20052005 QX56
41 –Shield
ground–– – – –
42 (W/L) GroundAudio RX
communica-
tion signalInput ONOperate audio
volume.Audio does not
operate properly.
43 (W) 41RGB syn-
chronizing
signalInput ONPress the “MAP”
button.NAVI screen is
rolling.
44 (R/L) 45RGB signal
(R: red)Input ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks bluish.
45 –Shield
ground–– – – –
46 (R/W) 45RGB signal
(G: green)Input ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks reddish.
47 –Shield
ground–– – – –
48 (B) 45RGB signal
(B: blue)Input ONSelect “Display
Diagnosis (NAVI)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks yellowish.
49 –Shield
ground–– – – –
50 (R/L) 47RGB signal
(R: red)Output ONSelect “Display
Diagnosis (DCU)” of
CONFIRMATION/
ADJUSTMENT
function.NAVI screen
looks bluish. Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
Voltage
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
SKIA4403E
SKIA0164E
SKIA4977E
SKIA4978E
SKIA4979E
SKIA4980E

NAVIGATION SYSTEM
AV-95
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AV
Revision: October 20052005 QX56
51 (B) 49RGB area
(YS) signalOutput ONPress the“TRIP”
button.RGB screen is
not shown.
52 (R/W) 47RGB signal
(G: green)Output ONSelect “Display
Diagnosis (DCU)” of
CONFIRMATION/
ADJUSTMENT
function.Screen looks
reddish.
53 (W) 49Vertical syn-
chronizing
(VP) signalInput ON –Operating
screen for audio
and A/C is not
displayed when
showing NAVI
screen.
54 (B) 47RGB signal
(B: blue)Output ONSelect “Display
Diagnosis (DCU)” of
CONFIRMATION/
ADJUSTMENT
function.Screen looks
yellowish.
55 (R) 49Horizontal
synchroniz-
ing (HP) sig-
nalInput ON –Operating
screen for audio
and A/C is not
displayed when
showing NAVI
screen.
56 (G) 49RGB syn-
chronizing
signalOutput ONPress the “TRIP”
button.NAVI screen is
rolling. Terminal No.
(Wire color)
ItemSignal
input/
outputCondition
Vo ltag e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
SKIA0162E
SKIA4981E
SKIA4983E
SKIA4982E
SKIA4983E
SKIA0164E

NAVIGATION SYSTEM
AV-97
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B
AV
Revision: October 20052005 QX56
18 (B) 7RGB signal
(B: blue)Input ONSelect “Display
Diagnosis (DCU)” of
CONFIRMATION/
ADJUSTMENT
function.Screen looks
yellowish.
19 (G) 21RGB syn-
chronizing
signalInput ONPress the “TRIP”
button.NAVI screen is
rolling.
20 (W) 21Vertical syn-
chronizing
(VP) signalOutput ON –Operating
screen for audio
and A/C is not
displayed when
showing NAVI
screen.
21 –Shield
ground–– – – –
22 (L) 23Display com-
munication
signal
(DSP-DCU)Output ON –Though a screen
is displayed, it is
impossible to
adjust bright-
ness.
23 –Shield
ground–– – – – Terminal No. (Wire
color)
ItemSignal
input/
outputCondition
Vo l ta g e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
SKIA4982E
SKIA0164E
SKIA4983E
SKIA4363E

AV-108
NAVIGATION SYSTEM
Revision: October 20052005 QX56
DISPLAY DIAGNOSIS

When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

When the color of the screen looks unusual, refer to AV-137, "Color of RGB Image is Not Proper (All
Screen Looks Bluish)" , AV- 1 3 8 , "Color of RGB Image is Not Proper (All Screen Looks Reddish)" and AV-
139, "Color of RGB Image is Not Proper (All Screen Looks Yellowish)" .
VEHICLE SIGNALS

A comparison check can be made of each actual vehicle signal
and the signals recognized by the system.
CAUTION:
In case of confirming light signal, set D/N mode to ON/OFF
of lighting switch (normal setting).

OFF: D (Day mode)

ON: N (Night mode)
Unless above setting, light signal (ON/OFF) may not be
accurately displayed.
LKIA0216E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish
LKIA0217E
Diagnosis item Display Condition Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
– Ignition switch in ACC position
LightON Lighting switch ON
–
OFF Lighting switch OFF
IGNON Ignition switch ON
–
OFF Ignition switch ACC
ReverseON Selector lever in R position
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal. OFF Selector lever in other than R position
– Ignition switch in ACC position

NAVIGATION SYSTEM
AV-109
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AV
Revision: October 20052005 QX56

If vehicle speed is NG, refer to AV- 1 2 2 , "Vehicle Speed Signal Check for Display Control Unit" .

If light is NG, refer to AV-123, "Illumination Signal Check for Display Control Unit" .

If IGN is NG, refer to AV- 1 2 4 , "Ignition Signal Check for Display Control Unit" .

If reverse is NG, refer to AV- 1 2 4 , "Reverse Signal Check for Display Control Unit" .
NAVIGATION
1. The initial confirmation/adjustment screen will be shown, and
items “Display Diagnosis”, “Vehicle Signals”, “History of Errors”
and “Navigation” will become selective.
2. Select each switch on “CONFIRMATION/ADJUSTMENT”
screen to display the relevant diagnosis screen.
DISPLAY DIAGNOSIS

When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.

When the color of the screen looks unusual, refer to AV- 1 3 4 , "Color of RGB Image is Not Proper (Only
NAVI Screen Looks Bluish)" , AV-135, "Color of RGB Image is Not Proper (Only NAVI Screen Looks Red-
dish)" and AV-139, "Color of RGB Image is Not Proper (All Screen Looks Yellowish)" .
SKIA4226E
SKIA0362E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish

BL-160
BODY REPAIR
Revision: October 20052005 QX56
BODY REPAIRPFP:60100
Body Exterior Paint ColorEIS008SF
M: Metallic; 2S: 2-Coat Solid, 2P: 2-Coat Pearl; 3P: 3-Coat Pearl; t: New Cross Linking Clear Coat
LIIA1437E
ComponentColor code B18 EY2 G10 J20 K11 K12 Q11
DescriptionCobalt
Blue KashmirLiquid
OnyxJadeSilver
GraphiteSilver
IndulgenceTu sc an
Pearl
Clear coat t t t t t t t
1Outside
mirrorBodyChromium
plateCr2P Cr2P Cr2P Cr2P Cr2P Cr2P Cr2P
Base Black KH3 KH3 KH3 KH3 KH3 KH3 KH3
2Radiator
grilleCenter
and
emblemChromium
plateCr2P Cr2P Cr2P Cr2P Cr2P Cr2P Cr2P
3 Bumpers Fascias Body color B18 EY2 G10 J20 K11 K12 Q11
4 Valance Black KH3 KH3 KH3 KH3 KH3 KH3 KH3
5Running
BoardsBody Body color B18 EY2 G10 J20 K11 K12 Q11
Step pad Black KH3 KH3 KH3 KH3 KH3 KH3 KH3
6Outside
handlesChromium
plateCr2P Cr2P Cr2P Cr2P Cr2P Cr2P Cr2P
7Side
Guard
MoldingBase Body color B18 EY2 G10 J20 K11 BK12 BQ10
To p T r i mChromium
plateCr2P Cr2P Cr2P Cr2P Cr2P Cr2P Cr2P
8License
plate fin-
isherBase Body color B18 EY2 G10 J20 K11 K12 Q11
Top and
bottom
trimChromium
plateCr2P Cr2P Cr2P Cr2P Cr2P Cr2P Cr2P
9Cowl top
coverBody color B18 EY2 G10 J20 K11 K12 Q11
10Rear
spoilerBody color B18 EY2 G10 J20 K11 K12 Q11

FUEL INJECTOR AND FUEL TUBE
EM-29
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Revision: October 20052005 QX56
FUEL INJECTOR AND FUEL TUBEPFP:16600
Removal and InstallationEBS00LM6
CAUTION:
Do not remove or disassemble parts unless instructed as shown in the figure.
REMOVAL
1. Remove the engine room cover using power tool. Refer to EM-11, "REMOVAL" .
2. Release the fuel pressure. Refer to EC-93, "
FUEL PRESSURE RELEASE" .
3. Disconnect the negative battery terminal.
4. Disconnect the fuel injector harness connectors.
5. Disconnect the fuel hose assembly from the fuel tubes (right bank and left bank).
CAUTION:

While hoses are disconnected, plug them to prevent fuel from draining.

Do not separate the fuel connector and fuel hose.
6. Remove the fuel injectors with the fuel tube assembly.
1. Fuel tube (right bank) 2. Cap 3. Fuel damper
4. O-ring 5. O-ring (blue) 6. Fuel injector
7. Clip 8. O-ring (brown) 9. O-ring
10. Fuel hose assembly 11. Fuel tube (left bank)
KBIA2472E