Revers INFINITI QX56 2004 Factory Service Manual

NAVIGATION SYSTEM
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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)" .
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R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish

AV-110
NAVIGATION SYSTEM
Revision: August 20072004 QX56
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 light switch (normal setting).

OFF: D (Day mode)

ON: N (Night mode)
Unless mode is in above setting, light signal (ON/OFF) may
not be accurately displayed.

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

If light is NG, refer to AV- 1 2 3 , "Illumination Signal Check for NAVI Control Unit" .

If IGN is NG, refer to AV-123, "Ignition Signal Check for NAVI Control Unit" .

If reverse is NG, refer to AV-124, "Reverse Signal Check for NAVI Control Unit" .
HISTORY OF ERRORS
DIAGNOSIS BY HISTORY OF ERRORS
The “Self-diagnosis” results indicate whether an error occurred during the period from when the ignition switch
is turned to ON until “Self-diagnosis” is completed.
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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
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AV-124
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Ignition Signal Check for Display Control UnitEKS007M8
1. CHECK IGNITION SIGNAL
1. Disconnect display control unit connector.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M94 terminal 12 (G/R) and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control UnitEKS007M9
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" .
2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between NAVI
control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 5 7 , "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Check for Display Control UnitEKS007MA
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" . Battery voltage should exist.
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Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than R-
position
B152 27 (G/W) Ground Battery voltage Approx. 0V
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NAVIGATION SYSTEM
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2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between display
control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
EKS007MB
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check power supply and ground circuit for NAVI control unit. Refer to AV- 11 6 , "
Power Supply and Ground
Circuit Check for NAVI Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display control unit connector.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than
R-position
M94 6 (GR) Ground Battery voltage Approx. 0V
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Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
B15244 (L)
M9532 (L)
Ye s
45 (P) 34 (P)
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15244 (L)
Ground No
45 (P)
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NAVIGATION SYSTEM
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Removal and Installation of NAVI Control UnitEKS007NC
CAUTION:
To avoid damage, eject map DVD-ROM before removing the NAVI control unit.
1. Slide front seat RH fully forward.
2. Remove NAVI control unit kick shield.
3. Disconnect connectors.
4. Remove screws and remove NAVI control unit.
5. Remove screws and brackets from NAVI control unit.
6. Installation is in the reverse order of removal.
Removal and Installation of GPS AntennaEKS007ND
1. Remove defrost grille.
2. Remove screws.
3. Remove center console. Refer to IP-15, "
Center Console" .
4. Disconnect GPS antenna connector and remove GPS antenna
and feeder assembly out the top.
5. Installation is in the reverse order of removal.
Removal and Installation of Steering Wheel SwitchEKS007NE
Refer to AV-47, "Removal and Installation of Steering Wheel Audio Control Switches" .
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AV-158
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Removal and Installation of AV SwitchEKS007NF
Refer to AV- 4 5 , "Removal and Installation for AV Switch" .
Removal and Installation of Display UnitEKS007NG
1. Remove cluster lid D.
2. Remove the four display unit assembly screws.
3. Disconnect connectors and remove display unit assembly.
4. Remove screws and remove display unit from brackets.
5. Installation is in reverse order of removal.
Removal and Installation of Display Control UnitEKS007NH
1. Remove cluster lid D.
2. Remove the four display unit assembly screws.
3. Disconnect connectors and remove display unit assembly.
4. Remove screws and remove display control unit from brackets.
5. Installation is in reverse order of removal.
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BCM (BODY CONTROL MODULE)
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14. Touch "OK" on "WRITE CONFIGURATION" screen.
WRITE CONFIGURATION is completed.
Removal and Installation of BCMEKS007GK
REMOVAL
NOTE:
If possible, before removing BCM, retrieve current BCM configuration to use for reference when configuring
brand-new BCM after installation. Refer to BCS-13, "
Configuration" .
1. Disconnect negative battery cable.
2. Remove lower knee protector LH. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
3. Remove screw and release BCM.
4. Disconnect connectors and then remove BCM.
INSTALLATION
Installation is in the reverse order of removal.
NOTE:

When replacing BCM, it must be configured. Refer to BCS-13, "Configuration" .

When replacing BCM, perform initialization of NATS system and registration of all NATS ignition key IDs.
Refer to BL-138, "
IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)" .

When replacing BCM, perform ID registration procedure of low tire pressure warning system. Refer to
WT-13, "
ID Registration Procedure" .
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HOOD
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Revision: August 20072004 QX56
CLEARANCE AND SURFACE HEIGHT ADJUSTMENT
1. Remove the hood lock assembly and adjust the height by rotating the bumper rubber until the hood clear-
ance of hood and fender becomes 1 mm (0.04 in) lower than fitting standard dimension.
2. Temporarily tighten the hood lock, and position it by engaging it with the hood striker. Check the lock and
striker for looseness, and tighten the lock bolts to the specified torque.
3. Adjust the clearance and surface height of hood and fender according to the fitting standard dimension by
rotating right and left bumper rubbers.
CAUTION:
Adjust right/left gap between hood and each part to the following specification.
HOOD LOCK ADJUSTMENT
1. Move the hood lock to the left or right so that striker center is vertically aligned with hood lock center
(when viewed from vehicle front).
2. Make sure the secondary latch is properly engaged with the sec-
ondary striker with hood's own weight by dropping it from
approx. 200 mm (7.87 in) height or by pressing it lightly approx.
3 kg (29 N, 7lb).
CAUTION:
Do not drop the hood from 300 mm (11.81 in) height or
higher.
3. After adjusting hood lock, tighten the lock bolts to the specified
torque.
Removal and Installation of Hood AssemblyEIS002R5
1. Support the hood striker with a proper material to prevent it from
falling.
WAR NIN G:
Body injury may occur if no supporting rod is holding the
hood open when removing the damper stay.
2. Remove the hinge nuts from the hood to remove the hood
assembly.
CAUTION:
Operate with two workers, because of its heavy weight.
Installation is in the reverse order of removal.Hood and headlamp (B–B) : Less than 2.0 mm
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REMOTE KEYLESS ENTRY SYSTEM
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Revision: August 20072004 QX56

When the back door latch receives the back door unlock signal, it operates the release actuator and
releases to back door latch.

The back door control unit operates the back door motor to open the back door. (At this time, speed con-
trol, input reverse, and overload reverse control are executed.)

When the back door is opened to the fully open position, the full-open position is detected with the rotation
sensor, the back door motor is stopped.

The door held by the back door stays at the full open position.
Full open → full closed operation

When a button of the keyfob is operated, the signal is sent from the keyfob and received by the remote
keyless entry receiver.

The received signal is sent to the BCM and compared with the registered ID number.

If the ID number matches, the BCM uses power window serial link communication to send the back door
close request signal to the back door control unit.

When the back door control unit receives the back door close request signal for 0.5 seconds, if the remote
control automatic back door operation enable conditions are met, the warning chime is sounded and the
back door motor begins closing the back door.

The back door control unit operates the magnetic clutch and the back door motor to close the back door.
(At this time, the back door control unit executes speed control, input reverse, and overload reverse con-
trol.)

When the back door comes to the half-latch state, the back door latch detects the half-latch state through
half-latch switch operation. The back door latch latches the back door.
For the automatic back door system operation enable conditions, refer to BL-101, "
AUTOMATIC BACK DOOR
SYSTEM" .
Active Check Function
Operation Description
When a door is locked or unlocked by keyfob operation, the vehicle turn signals flash and the horn sounds to
verify operation.

When a button on the keyfob is operated, the signal is sent from the remote controller and received by the
keyless remote entry receiver.

The received signal is sent to the BCM and compared with the registered ID number.

If the ID number matches, the BCM sends the turn signal flashing and horn signal to the IPDM E/R.

The IPDM E/R flashes the turn signal lamps and sounds the horn for each keyfob operation.
Operating function of hazard and horn reminder
Hazard and Horn Reminder
BCM output to IPDM E/R for horn reminder signal as DATA LINE (CAN-H and CAN-L).
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).
How to change hazard and horn reminder mode
With CONSULT-II
Hazard and horn reminder can be changed using “WORK SUPPORT” mode in “MULTI ANSWER BACK SET".
Without CONSULT-II
Refer to Owner's Manual for instructions.
Interior Lamp Operation
When the following input signals are both supplied:

all door switches are in the OFF position (when all the doors are closed);

interior lamp switch is in DOOR position.
C mode S mode
Keyfob operation Lock Unlock Lock Unlock
Hazard warning lamp
flashTwic e O nc e Twic e —
Horn sound Once — — —

BL-102
AUTOMATIC BACK DOOR SYSTEM
Revision: August 20072004 QX56
System DescriptionEIS002SV
The automatic back door system consists of a one piece unit that combines the back door control unit along
with the back door motor, back door clutch and the back door encoder. The back door latch contains a lock
function that can control the two functions of automatic back door latch closure and electrical opener with a
single motor when you close the back door to the halfway-state.

Back door auto closure
When the back door is closed to the halfway state (half-latch) position, the motor automatically drives to
rotate the latch lever and pull it in from half latched to full latched.

Power back door
With the back door closed, press the power liftgate switch or press the remote keyless entry button, or pull
the back door handle with the back door unlocked, the back door latch motor opens the locking plate and
releases the latch. The back door motor then raises the door to the full open position.
With the back door fully open, press the power liftgate switch, remote keyless entry button or the back
door close switch, the back door motor closes the door to the half-latch state. The back door latch motor
then drives the latch to the full close position.
At the onset of each power open or power close application, the hazard lamps will flash 3 times and the
warning chime will sound 3 times lasting a total of 2 seconds.
OPERATION DESCRIPTION
Power Liftgate Switch Operation (Fully Closed → Fully Open Operation)

When the power liftgate switch is pressed, back door control unit terminal 23 receives the signal.

The back door control unit checks the A/T selector lever (P position) through terminal 18, vehicle speed
through terminal 21, ignition status through terminal 7, glass hatch is closed through terminal 17 and bat-
tery voltage is present through terminal 3.

When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a 5 volt signal through terminal 6 and grounds terminal 9 to sound the warning chime, sends
a signal to the BCM through terminal 4 to flash the hazard lamps and unlocks the back door latch through
terminal 12.

The back door control unit supplies power to the magnetic clutch and the back door motor and moves the
back door in the open direction. (At this time, it also executes speed control, input reverse, and anti-pinch
detection control.)

When the back door is opened to the full-open position, the full-open position is detected by the encoder,
and the back door control unit switches the back door motor OFF and the magnetic clutch is pulsed and
then turned OFF.

The back door is held in the fully open position by the gas stays.
Remote Keyless Entry Operation (Fully Closed → Fully Open Operation)

When the remote keyless entry button is pressed for at least 0.5 seconds, back door control unit terminal
21 receives the signal.

The back door control unit checks the A/T selector lever (P position) through terminal 18, vehicle speed
through terminal 21, ignition status through terminal 7, glass hatch is closed through terminal 17 and bat-
tery voltage is present through terminal 3.

When the back door control unit receives the signal, if the auto back door operating enable conditions are
met, it sends a 5 volt signal through terminal 6 and grounds terminal 9 to sound the warning chime, sends
a signal to the BCM through terminal 4 to flash the hazard lamps and unlocks the back door latch through
terminal 12.

The back door control unit supplies power to the magnetic clutch and the back door motor and moves the
back door in the open direction. (At this time, it also executes speed control, input reverse, and anti-pinch
detection control.)

When the back door is opened to the full-open position, the full-open position is detected by the encoder,
and the back door control unit switches the back door motor OFF and the magnetic clutch is pulsed and
then turned OFF.

The back door is held in the fully open position by the gas stays.