2006 INFINITI QX56 tow

TOW MODE SWITCHAT-175
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Diagnostic ProcedureECS00CK1
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis. Refer to AT- 8 6 , "
SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction in the CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 9 6 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK POWER SOURCE
1. Turn ignition switch “ON”. (Do not start engine.)
2. Check the voltage between tow mode switch connector M67 ter- minal 1 and ground.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.
3. CHECK TOW MODE SWITCH
1. Turn ignition switch “OFF”.
2. Disconnect tow mode switch connector.
3. Check continuity between tow mode switch terminals 1 and 2.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace tow mode switch.
4. DETECT MALFUNCTIONING ITEM
Check the following items. If any items are damaged, repair or replace damaged parts.

Harness for short or open between combination meter connector terminal 35 and tow mode switch con-
nector terminal 1.

Harness for short or open between tow mode switch connector terminal 2 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK COMBINATION METER
Check the combination meter. Refer to DI-17, "
How to Proceed With Trouble Diagnosis" .
OK or NG
OK >> INSPECTION END
NO >> Repair or replace damaged parts.
Condition To w m o d e
switch Data (Approx.)
When ignition switch is turned to “ON ” ON
0V
OFF Battery voltage
SCIA5156E
Condition Continuity
Tow mode switch “ON ” Ye s
Tow mode switch “OFF ” No
SCIA5584E

ON-VEHICLE SERVICEAT-235
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Revision: November 2009 2006 QX56
5. Install A/T fluid temperature sensor 2 to bracket.
6. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
7. Install control valve with TCM in transmission case. CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
SCIA5264E
SCIA5301E
SCIA5034E
SCIA5142E

ASSEMBLYAT-319
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g. Install control valve with TCM in transmission case.
CAUTION:

Make sure that turbine revolution sensor securely installs
into turbine revolution sensor hole.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
h. Install bolts A, B and C to control valve with TCM.
i. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. Then tighten them in order (1 → 2 → 3), and then tighten other bolts.
j. Tighten control valve with TCM bolts to the specified torque. Refer to AT- 2 5 0 , "
Components" .
10. Connect A/T fluid temperature sensor 2 connector.
SCIA5034E
SCIA5035E
Bolt symbol Length: mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5025E
SCIA5037E
SCIA5023E

SERVICE DATA AND SPECIFICATIONS (SDS)AT-323
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsECS00EQB
*1: Refer to MA-11, "Fluids and Lubricants" .
Vehicle Speed When Shifting GearsECS00EQC
NORMAL MODE

At half throttle, the accelerator opening is 4/8 of the full opening.
TOW MODE

At half throttle, the accelerator opening is 4/8 of the full opening.
Applied model
2WD4WD
Automatic transmission model RE5R05A
Transmission model code number 95X1C95X1D
Stall torque ratio 2.0: 1
Transmission gear ratio 1st
3.827
2nd 2.368
3rd 1.520
4th 1.000
5th 0.834
Reverse 2.613
Recommended fluid NISSAN Matic Fluid J*1
Fluid capacity 10.6 liter (11-1/4 US qt, 9-3/8 Imp qt)
CAUTION:

Use only Genuine NISSAN ATF Matic Fluid J. Do not mix with other fluid.

Using automatic transmission fluid other than Genuine NISSAN ATF Matic Fluid J will deteriorate in driveability and auto-
matic transmission durability, and may damage the automatic transmission, which is not covered by the warranty.
Final
gear
ratio Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
2.937 Full throttle
70 - 74
(44 - 46) 112 - 120
(70 - 75) 176 - 186
(110 - 116) 249 - 259
(155 - 161) 245 - 255
(152 - 159) 166 - 176
(103 - 110) 100 - 108
(62 - 67) 43 - 47
(27 - 30)
Half throttle 46 - 50
(28 - 31) 74 - 82
(46 - 51) 103 - 113
(64 - 70) 135 - 145
(84 - 90) 109 - 119
(68 - 74) 69 - 79
(43 - 49) 44 - 52
(27 - 32) 11 - 1 5
(7 - 10)
3.357 Full throttle
61 - 65
(38 - 41) 97 - 105
(61 - 66) 153 - 163
(95 - 102) 236 - 246
(147 - 153) 232 - 242
(144 - 151) 143 - 153
(89 - 95) 87 - 95
(54 - 59) 43 - 47
(27 - 29)
Half throttle 41 - 45
(26 - 28) 66 - 74
(41 - 46) 89 - 99
(56 - 62) 117 - 127
(73 - 79) 95 - 105
(59 - 65) 59 - 69
(37 - 43) 38 - 46
(24 - 29) 11 - 1 5
(7 - 10)
Final
gear
ratio Throttle position Vehicle speed km/h (MPH)
D
1 → D2D2 → D3D3 → D4D4 → D5D5 → D4D4 → D3D3 → D2D2 → D1
2.937 Full throttle
70 - 74
(44 - 46) 112 - 120
(70 - 75) 176 - 186
(110 - 116) 249 - 259
(155 - 161) 245 - 255
(152 - 159) 166 - 176
(103 - 110) 100 - 108
(62 - 67) 43 - 47
(27 - 30)
Half throttle 50 - 54
(31 - 34) 81 - 89
(50 - 55) 113 - 123
(70 - 76) 135 - 145
(84 - 90) 109 - 119
(68 - 74) 68 - 78
(42 - 48) 44 - 52
(27 - 32) 11 - 1 5
(7 - 10)
3.357 Full throttle
61 - 65
(38 - 41) 97 - 105
(61 - 66) 153 - 163
(95 - 102) 236 - 246
(147 - 153) 232 - 242
(144 - 151) 143 - 153
(89 - 95) 87 - 95
(54 - 59) 43 - 47
(27 - 29)
Half throttle 43 - 47
(27 - 29) 72 - 80
(45 - 50) 98 - 108
(61 - 67) 117 - 127
(73 - 79) 95 - 105
(59 - 65) 59 - 69
(37 - 43) 37 - 45
(23 - 28) 11 - 1 5
(7 - 10)

AV-158
NAVIGATION SYSTEM
Revision: November 20092006 QX56
Example of Symptoms Judged Not MalfunctionEKS00GFC
BASIC OPERATION
VEHICLE MARK
SymptomCause Remedy
No image is shown. Display brightness adjustment is set fully to
DARK side. Adjust the display brightness.
No guide sound is heard.
Audio guide volume is too low or
too high. Volume control is set to OFF, MIN or MAX. Adjust the audio guide volume.
Audio guidance is not available while the vehicle
is driving on a dark pink route.
System is not malfunctioning.
Screen is too dark.
Motion of the image is too slow. Temperature inside the vehicle is low.
Wait until the temperature inside the vehicle
reaches the proper temperature.
Small black or bright spots appear
on the screen. Symptom peculiar to a liquid crystal display (dis-
play unit). System is not malfunction.
Symptom
Cause Remedy
Map screen and BIRDVIEW ™
Name of the place varies with the
screen. Some thinning of the character data is done to
prevent the display becoming to complex. In
some cases and in some locations, the display
contents may differ.
The same place name, street name, etc. may not
be displayed every time on account of the data
processing. System is not malfunctioning.
Vehicle mark is not positioned cor-
rectly. Vehicle is transferred by ferry or by towing after its
ignition switch is turned to OFF. Drive the vehicle for a while in the GPS sat-
ellite signal receiving condition.
Screen will not switch to nighttime
mode after the lighting switch is
turned ON. The daytime screen is selected by the
“SWITCH
SCREENS ” when the last time the screen dim-
ming setting is done.
Switching between daytime/nighttime screen may
be inhibited by the automatic illumination adjust-
ment function. Perform screen dimming and select the
nighttime screen by
“SWITCH SCREENS ”.
Map screen will not scroll in accor-
dance with the vehicle travel. Current location is not displayed.
Press “MAP ” button to display the current
location.
Vehicle mark will not be shown. Current location is not displayed. Press “MAP ” button to display the current
location.
Accuracy indicator (GPS satellite
mark) on the map screen stays
gray. GPS satellite signal is intercepted because the
vehicle is in or behind a building.
Move the vehicle out to an open space.
GPS satellite signal cannot be received because
an obstacle is placed on top of the instrument
panel. Do not place anything in the center on top of
the display.
GPS satellites are not visible from current loca-
tion. Wait until GPS satellites are visible by mov-
ing the vehicle.
Vehicle location accuracy is low. Accuracy indicator (GPS satellite mark) on the map screen stays gray. Current location is not determined.
Vehicle speed setting by the vehicle speed pulse
has been deviated (advanced or retarded) from
the actual vehicle speed because tire chain is fit-
ted or the system has been used on another vehi-
cle. Drive the vehicle for a while [for approx. 30
minutes at approx. 30 km/h (19 MPH)] and
the deviation will be automatically adjusted.
If advancement or retard still occur, perform
the distance adjustment by CONFIRMA-
TION/ADJUSTMENT mode of diagnosis
function.
Map data has error or omission. (Vehicle mark is
always deviated to the same position.) As a rule, an updated map DVD
–ROM will
be released once a year.

AV-164
NAVIGATION SYSTEM
Revision: November 20092006 QX56
CURRENT-LOCATION MARK SHOWS A POSITION WHICH IS COMPLETELY WRONG
In the following cases, the current-location mark may appear on completely different position in the map
depending on the GPS satellite signal receiving conditions. In this case, perform location correction and direc-
tion correction.

When location correction has not been done
–If the receiving conditions of the GPS satellite signal is poor, or if the current-location mark becomes out of
place, it may move to a completely different location and not come back if location correction is not done.
The position will be corrected if the GPS signal can be received.

When the vehicle has traveled by ferry, or when the vehicle has been towed
–Because calculation of the current location cannot be done when travelling with the ignition OFF, for
example when traveling by ferry or when being towed, the location before travel is displayed. If the precise
location can be detected with GPS, the location will be corrected.
CURRENT-LOCATION MARK JUMPS
In the following cases, the current-location mark may appear to jump as a result of automatic correction of the
current location.

When map-matching has been done
–If the current location and the current-location mark are different when map-matching is done, the current-
location mark may seem to jump. At this time, the location may be “corrected” to the wrong road or to a
location which is not on a road.

When GPS location correction has been done
–If the current location and the current-location mark are different when the location is corrected using GPS
measurements, the current-location mark may seem to jump. At this time, the location may be “corrected”
to a location which is not on a road.
Precautions
for driving Just after the engine is started
If the vehicle is driven just after the engine
is started when the gyroscope (angular
speed sensor) correction is not completed,
the vehicle can lose its direction and may
have deviated from the correct location. Wait for a short while before
driving after starting the engine.
Continuous driving without stopping When driving long distances without stop- ping, direction errors may accumulate, and
the current-location mark may deviate from
the correct road. Stop and adjust the orientation.
Abusive driving Spinning the wheels or engaging in other
kinds of abusive driving may result in the
system being unable perform correct
detection, and may cause the vehicle mark
to deviate from the correct road. If after travelling about 10 km (6
miles) the correct location has
not been restored, perform
location correction and, if nec-
essary, direction correction.
How to cor-
rect location Position correction accuracy
If the accuracy of location settings is poor,
accuracy may be reduced when the correct
road cannot be found, particularly in places
where there are many roads. Enter in the road displayed on
the screen with an accuracy of
approx. 1mm.
Caution: Whenever possible,
use detailed map for the cor-
rection.
Direction when location is corrected
If the accuracy of location settings during
correction is poor, accuracy may be
reduced afterwards. Perform direction correction.
Cause (condition)
–: While driving ooo: Display Driving conditionRemarks (correction, etc.)
SEL701V
SEL702V

BCM (BODY CONTROL MODULE)BCS-7
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BCM is activated with low current consumption mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state:
–Ignition switch
–Key switch (insert)
–Hazard switch
–Main door lock/unlock switch
–Front door switch (LH, RH)
–Rear door switch (LH, RH)
–Back latch (door ajar switch)
–Glass hatch ajar switch
–Combination switch (passing, lighting switch 1st position, front fog lamp)
–Keyfob (lock/unlock signal)
–Front door lock assembly LH (key cylinder switch)

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.
SYSTEMS CONTROLLED BY BCM DIRECTLY

Power door lock system. Refer to BL-16, "POWER DOOR LOCK SYSTEM" .

Remote keyless entry system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

Power window system. Refer to GW-15, "POWER WINDOW SYSTEM" . NOTE

Sunroof system. Refer to RF-10, "SUNROOF" . NOTE

Room lamp timer. Refer to LT- 1 3 4 , "INTERIOR ROOM LAMP" .

Warning chime system. Refer to DI-43, "WARNING CHIME" .

Turn signal and hazard warning lamps system. Refer to LT- 8 0 , "TURN SIGNAL AND HAZARD WARNING
LAMPS" .

Trailer turn signal and hazard warning lamps system (if equipped). Refer to LT- 1 2 6 , "TRAILER TOW" .

Rear wiper and washer system. Refer to WW-32, "REAR WIPER AND WASHER SYSTEM" .
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R

Panic system. Refer to BL-44, "REMOTE KEYLESS ENTRY SYSTEM" .

Vehicle security system. Refer to BL-75, "VEHICLE SECURITY (THEFT WARNING) SYSTEM" .

IVIS (NATS) system. Refer to BL-137, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

Headlamp, tail lamp, front fog lamp, auto light and battery saver control systems. Refer to LT- 5 , "HEAD-
LAMP (FOR USA)" , LT- 3 3 , "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYSTEM -" , LT- 111 ,
"PARKING, LICENSE PLATE AND TAIL LAMPS" , LT- 6 9 , "FRONT FOG LAMP" or LT- 4 7 , "AUTO LIGHT
SYSTEM" .

Front wiper and washer system. Refer to WW-4, "FRONT WIPER AND WASHER SYSTEM" .

Rear window defogger system. Refer to GW-74, "REAR WINDOW DEFOGGER" .
MAJOR COMPONENTS AND CONTROL SYSTEM
System InputOutput
Remote keyless entry system Remote keyless entry receiver (keyfob)

All door locking actuators

Back door opener actuator

Turn signal lamps
Power door lock system

Front power door lock/unlock switch (LH, RH)

All door switches

Key switch All door locking actuators

BCS-8
BCM (BODY CONTROL MODULE)
Revision: November 20092006 QX56
CAN Communication System DescriptionEKS00D7X
Refer to LAN-26, "CAN COMMUNICATION" .
Power supply [ignition (IGN)/retained
accessory power (RAP)] to power win-
dow and sunroof IGN/RAP supply
Power supply to power window and
sunroof system
Power supply (BAT) to power window
and sunroof Battery power supply Power supply to power window and
sunroof system
Panic alarm

Key switch

Remote keyless entry receiver (keyfob) IPDM E/R
Auto light system

Optical sensor

Combination switch IPDM E/R
Battery saver control

Ignition switch

Combination switch

Front door switch LH and RH IPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Front fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch

Turn signal lamp

Combination meter
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
Room lamp timer

Key switch

Remote keyless entry receiver (keyfob)

Main power window and door lock/unlock switch

Front door lock assembly LH (key cylinder switch)

All door switches Interior room lamp
Key warning chime

Key switch

Front door switch LH Combination meter (warning
buzzer)
Light warning chime

Combination switch

Key switch

Front door switch LH Combination meter (warning
buzzer)
Vehicle-speed-sensing intermittent
wiper

Combination switch

Combination meter IPDM E/R
Rear window defogger Rear window defogger switch IPDM E/R
Air conditioner switch signal Front air control ECM
Blower fan switch signal Front air control ECM
Low tire pressure warning system Remote keyless entry receiver

Combination meter

Display control unit
Trailer tow (if equipped) Combination switch Trailer turn signal relays
Vehicle security system

Remote keyless entry receiver (keyfob)

Main power window and door lock/unlock switch

Power window and door lock/unlock switch RH

Front door lock assembly LH (key cylinder switch)

All door switches

Back door latch (door ajar switch)

IPDM E/R

Security indicator lamp
System
InputOutput