2006 INFINITI QX56 turn signal

EM-76Revision: November 2009
ENGINE ASSEMBLY
2006 QX56

Loosen the bolts diagonally.
CAUTION:

Be careful not to damage the drive plate. Especially
avoid deforming and damaging of the signal plate teeth
(circumference position).

Place the drive plate with the signal plate surface fac-
ing other than downward.

Keep magnetic materials away from the signal plate.
CAUTION:
Use an engine stand that has a load capacity [approximately 240kg (529 lb) or more] large enough
for supporting the engine weight.

If the load capacity of the stand is not adequate, remove the following parts beforehand to
reduce the potential risk of overturning the stand.
–Remove the fuel tube and fuel injector assembly. Refer to EM-31, "Removal and Installation" .
–Remove the intake manifold. Refer to EM-17, "Removal and Installation" .
–Remove the ignition coil. Refer to EM-28, "Removal and Installation" .
–Remove the rocker cover. Refer to EM-35, "Removal and Installation" .
–Other removable brackets.
CAUTION:
Before removing the hanging chains, make sure the engine stand is stable and there is no risk of
overturning.
31. Remove the alternator. Refer to SC-25, "
REMOVAL" .
32. Remove the engine mounting insulator and bracket using power tool.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:

When replacing an engine or transmission you must make sure the dowels are installed correctly
during re-assembly.

Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of driv-
etrain components.
INSPECTION AFTER INSTALLATION

Before starting the engine, check oil/fluid levels including engine coolant and engine oil. If the levels are
lower than required quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants" .

Use procedure below to check for fuel leakage.

Turn ignition switch ON (with engine stopped). With fuel pressure applied to the fuel piping, check for fuel
leakage at the connection points.

Start engine. With engine speed increased, check again for fuel leakage at connection points.

Run engine to check for unusual noise and vibration.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oils/fluids includ-
ing engine oil and engine coolant.

Bleed air from passages in lines and hoses, such as in cooling system.

After cooling down the engine, again check oil/fluid levels including engine oil and engine coolant. Refill to
specified level if necessary.

Summary of the inspection items:
KBIA2491E

POWER WINDOW SYSTEMGW-19
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Revision: November 2009 2006 QX56
POWER WINDOW LOCK
The power window lock is designed to lock operation of all windows except for front door window LH.
When in the lock position, the power window lock signal is transmitted to power window and door lock/unlock
switch RH by power window serial link. This prevents the power window motor from operating.
RETAINED POWER OPERATION
When the ignition switch is turned to the OFF position from ON or START position, power is supplied for 45
seconds

to main power window and door lock/unlock switch terminal 10

from BCM terminal 68.
When power and ground are supplied, the BCM continues to be energized, and the power window can be
operated.
The retained power operation is canceled when the front LH or front RH door is opened.
Retained power operation period can be changed by CONSULT-II. Refer to GW-33, "
CONSULT-II Function
(BCM)" .
ANTI-PINCH SYSTEM
Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and rear
power window control unit LH and RH monitors the power window motor operation and the power window
position (full closed or other) for each power window by the signals from encoder and limit switch in power win-
dow motor.
When a window switch detects interruption during the following close operation,

automatic close operation when ignition switch is in the ON position

automatic close operation during retained power operation
Main power window and door lock/unlock switch, power window and door lock/unlock switch RH and rear
power window control unit LH and RH controls each power window motor for open and the power window will
be lowered about 150 mm (5.91 in).
POWER WINDOW CONTROL BY THE FRONT DOOR LOCK ASSEMBLY LH (KEY CYLINDER
SWITCH)
When ignition key switch is OFF, front power window LH and RH can be opened or closed by turning the front
door lock assembly LH (key cylinder switch) to the UNLOCK/LOCK position for more than 1 second.

Front power windows can be opened as the front door lock assembly LH (key cylinder switch) is kept fully
turned to the UNLOCK position.

Front power windows can be closed as the front door lock assembly LH (key cylinder switch) is kept fully
turned to the LOCK position.

While performing open/close operation for the windows, power window is stopped when the front door
lock assembly LH (key cylinder switch) is placed in the NEUTRAL position.

When the ignition switch is turned ON while the power window opening operation is performed, the power
window opening stops.
CAN Communication System DescriptionEIS005XP
Refer to LAN-26, "CAN COMMUNICATION" .

GW-30
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
Terminal and Reference Value for Main Power Window and Door Lock/Unlock
Switch
EIS005XS
Terminal and Reference Value for Power Window and Door Lock/Unlock Switch
RH
EIS005XT
Terminal Wire ColorItemCondition Voltage (V)
(Approx.)
2 W/B Limit switch and encoder ground — 0
4L Front door key cylinder switch LH
lock signal Key position
(Neutral
→ Unlocked) 5
→ 0
6R Front door key cylinder LH switch
unlock signal Key position
(Neutral
→ Locked) 5
→ 0
8G/R Front power window motor LH UP
signal When power window motor is
operated UP
Battery voltage
9 O Limit switch signal Front power window LH is
between fully-open and just
before fully-closed position (ON)
0
Front power window LH is
between just before fully-closed
position and fully-closed position
(OFF) 5
10 W/L RAP signal When ignition switch ON
Battery voltage
Within 45 seconds after ignition
switch is turned to OFF Battery voltage
More than 45 seconds after igni-
tion switch is turned to OFF 0
When front door LH or RH open
or power window timer operates 0
11 G/W Front power window motor LH
DOWN signal When power window motor is
operated DOWN
Battery voltage
13 G/Y Encoder pulse signal When power window motor oper-
ates
14 LG/W Power window serial link When ignition switch ON or
power window timer operates
15 BR Encoder power supply When ignition switch ON or
power window timer operates10
17 B Ground —0
19 W/R Battery power supply —Battery voltage
OCC3383D
PIIA2344J
Terminal Wire Color ItemCondition Voltage (V)
(Approx.)
3 W/B Limit switch and encoder ground — 0
4 G/R Encoder power supply When ignition switch ON or
power window timer operates10

GW-32
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
Terminal and Reference Value for BCMEIS005XU
Terminal Wire ColorItemCondition Voltage (V)
(Approx.)
11 O Ignition switch (ACC or ON) Ignition switch
(ACC or ON position) Battery voltage
12 R/L Front door switch RH signal ON (Open)
Battery voltage
OFF (Close) 0
22 W/V BUS When ignition switch ON or
power window timer operates
38 W/L Ignition switch (ON or START) Ignition switch
(ON or START position)
Battery voltage
47 SB Front door switch LH signal ON (Open)
Battery voltage
OFF (Close) 0
67 B Ground —0
68 W/L Power window power supply
(RAP) When ignition switch ON
Battery voltage
Within 45 seconds after ignition
switch is turned to OFF Battery voltage
More than 45 seconds after igni-
tion switch is turned to OFF 0
When front door LH or RH is
open or power window timer
operates 0
69 W/R Power window power supply
(BAT) —
Battery voltage
70 W/B Battery power supply —Battery voltage
PIIA2344J

POWER WINDOW SYSTEMGW-33
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Work FlowEIS005XV
1. Check the symptom and customer's requests.
2. Understand the outline of system. Refer to GW-16, "
System Description" .
3. According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to GW-35, "
Trouble Diagnoses Symptom Chart" .
4. Does power window system operate normally? Yes, GO TO 5, If No, GO TO 3.
5. Inspection End.
CONSULT-II Function (BCM)EIS005XW
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. Connect CONSULT-II and CONSULT-II CONVERTER to the data link connector.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL) ”.
BCM diagnostic
test item Diagnostic mode
Content
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.CONFIGURATION Performs BCM configuration read/write functions.
BBIA0369E
BCIA0029E

GW-34
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
4. Touch “BCM”.
If “BCM ” is not indicated, refer to GI-40, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
5. Touch “RETAINED PWR ”.
6. Select diagnosis mode. “ACTIVE TEST ”, “WORK SUPPORT ” and "DATA MONITOR"
are available.
ACTIVE TEST
WORK SUPPORT
DATA MONITOR
BCIA0030E
LIIA0163E
BCIA0031E
Test Item Description
RETAINED PWR This test is able to supply RAP signal (power) from BCM (body control module) to power window
system and power sunroof system (if equipped). Those systems can be operated when turning on
“
RETAINED PWR ” on CONSULT-II screen even if the ignition switch is turned OFF.
NOTE:
During this test, CONSULT-II can be operated with ignition switch in OFF position. “ RETAINED
PWR ” should be turned “ ON” or “OFF ” on CONSULT-II screen when ignition switch is ON. Then
turn ignition switch OFF to check retained power operation. CONSULT-II might be stuck if
“ RETAINED PWR ” is turned “ON ” or “OFF ” on CONSULT-II screen when ignition switch is OFF.
Work item Description
RETAINED PWR RAP signal
’s power supply period can be changed by mode setting. Selects RAP signal ’s power
supply period between three steps

MODE1 (45 sec.) / MODE2 (OFF) / MODE 3 (2 min.).
Work item Description
IGN ON SW Indicates (ON / OFF) condition of ignition switch

POWER WINDOW SYSTEMGW-39
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4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminals 68, 69 and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM.
Power Window and Door Lock/Unlock Switch RH Power Supply and Ground
Circuit Check
EIS005Y0
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between power window and door lock/unlock switch RH connector D105 terminal 10 and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect power window and door lock/unlock switch RH.
3. Check continuity between power window and door lock/unlock switch RH connector D105 terminal 11 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Repair or replace harness.
3. CHECK POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH RH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check continuity between BCM connector M20 (A) terminal 69 and power window and door lock/unlock switch RH connector
D105 (B) terminal 10.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness. 68 - Ground
: Battery voltage
69 - Ground : Battery voltage
LIIA0917E
10 - Ground : Battery voltage
LIIA1257E
11 - Ground: Continuity should exist.
LIIA1258E
69 - 10 : Continuity should exist.
LIIA2298E

GW-40
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M20 terminal 69 and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace BCM. Refer to BCS-20, "
BCM" .
Front Power Window Motor LH Circuit CheckEIS005Y1
1. CHECK MAIN POWER WINDOW AND DOOR LOCK/UNLOCK SWITCH OUTPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between main power window and door lock/ unlock switch connector D7 terminals 8, 11 and ground.
OK or NG
OK >> GO TO 2.
NG >> Replace main power window and door lock/unlock switch. Refer to EI-32, "
REMOVAL" .
2. CHECK POWER WINDOW MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect main power window and door lock/unlock switch and front power window motor LH.
3. Check continuity between main power window and door lock/ unlock switch connector D7 terminals 8, 11 and front power win-
dow motor LH connector D9 terminals 1, 2.
OK or NG
OK >> Replace front power window motor LH.
NG >> Repair or replace harness. Refer to GW-66, "
FRONT DOOR GLASS REGULATOR" .
69 - Ground
: Battery voltage
WIIA0508E
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D7 8
Ground UP Battery voltage
DOWN 0
11 UP
0
DOWN Battery voltage
LIIA0317E
8 - 2 : Continuity should exist.
11 - 1 : Continuity should exist.
LIIA1260E