turn signal INFINITI QX56 2007 Factory Service Manual

SE-64
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Check continuity between door mirror remote control switch termi-
nals as follows.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror remote control switch.
Door Mirror Remote Control Switch (Mirror Switch) Circuit InspectionINFOID:0000000003533196
1.CHECK DOOR MIRROR REMOTE CONTROL SWITCH (MIRROR SWITCH) SIGNAL
With CONSULT-II
Check the operation on “MIR CON SW-UP/DN” and
“MIR CON SW-RH/LH” in the DATA MONITOR.
Without CONSULT-II
1. Turn ignition switch to ACC.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Door mirror remote control switch (mirror switch) circuit is OK.
NG >> GO TO 2.
2.CHECK HARNESS CONTINUITY
Terminals Condition Continuity
3
13Changeover switch RIGHT position Yes
Other than above No
2Changeover switch LEFT position Yes
Other than above No
LIIA2052E
Monitor item [OPERATION or
UNIT]Contents
MIR CON SW-UP “ON/OFF”ON/OFF status judged from the door mirror
switch (UP) signal is displayed.
MIR CON SW-DN “ON/OFF”ON/OFF status judged from the door mirror
switch (DOWN) signal is displayed.
MIR CON SW-RH “ON/OFF”ON/OFF status judged from the door mirror
switch (RIGHT) signal is displayed.
MIR CON SW-LH “ON/OFF”ON/OFF status judged from the door mirror
switch (LEFT) signal is displayed.
PIIA0199E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M333
GroundMirror switch UP operation 0
Other than above 5
4Mirror switch LEFT operation 0
Other than above 5
19Mirror switch DOWN operation 0
Other than above 5
20Mirror switch RIGHT operation 0
Other than above 5
PIIA4771E

SE-66
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
2.CHECK DOOR MIRROR REMOTE CONTROL SWITCH (CHANGEOVER SWITCH)
Check continuity between door mirror remote control switch termi-
nals as follows.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Replace door mirror remote control switch.
Seat Memory Switch Circuit InspectionINFOID:0000000003533198
1.CHECK FUNCTION
With CONSULT-II
With “SET SW, MEMORY SW1, MEMORY SW2” on the DATA
MONITOR, operate the switch to check ON/OFF operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch circuit is OK.
NG >> GO TO 2.
2.CHECK SEAT MEMORY SWITCH
1. Turn ignition switch OFF.
2. Disconnect seat memory switch.
3. Operate the setting switch and seat memory switch.
4. Check continuity between seat memory switch terminals as fol-
lows.
Terminals Condition Continuity
3
13Changeover switch RIGHT position Yes
Other than above No
2Changeover switch LEFT position Yes
Other than above No
LIIA2052E
Monitor item [OPERATION or
UNIT]Contents
MEMORY SW1 “ON/OFF”ON/OFF status judged from the seat
memory switch 1 signal is displayed.
MEMORY SW2 “ON/OFF”ON/OFF status judged from the seat
memory switch 2 signal is displayed.
SET SW “ON/OFF”ON/OFF status judged from the setting
switch signal is displayed.
PIIA0309E
LIIA1020E

SE-68
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> Seat memory switch indicator lamp circuit is OK.
NG >> GO TO 2.
2.CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect seat memory switch.
3. Check voltage between seat memory switch connector D5 ter-
minal 5 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK SEAT MEMORY INDICATOR CIRCUIT HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit.
3. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and seat memory switch con-
nector D5 terminals 6, 7.
4. Check continuity between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL
1. Connect seat memory switch.
2. Turn ignition switch ON.
3. Check voltage between automatic drive positioner control unit
connector M33 terminals 12, 13 and ground.
OK or NG
OK >> Replace automatic drive positioner control unit.
NG >> Replace seat memory switch.
Te s t i t e m D e s c r i p t i o n
MEMORY SW INDCTRThe memory switch indicator is lit by receiving the
drive signal.
PIIA0319E
5 - Ground : Battery voltage
PIIA4595E
12 - 6 : Continuity should exist.
13 - 7 : Continuity should exist.
12 - Ground : Continuity should not exist.
13 - Ground : Continuity should not exist.
LIIA1022E
12 - Ground : Battery voltage
13 - Ground : Battery voltage
LIIA1134E

SE-70
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Check that when the A/T selector lever is in P position, “DETENT
SW” on the DATA MONITOR becomes OFF.
Without CONSULT-II
GO TO 2.
OK or NG
OK >> A/T device (park position switch) circuit is OK.
NG >> GO TO 2.
2.CHECK A/T DEVICE (PARK POSITION SWITCH) HARNESS
1. Turn ignition switch OFF.
2. Disconnect A/T device and driver seat control unit.
3. Check continuity between A/T device connector M203 terminal 6
and driver seat control unit connector P2 terminal 21.
4. Check continuity between A/T device connector M203 terminal 6
and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK PARK POSITION SWITCH
Check continuity between A/T device (park position switch) terminals
as follows.
OK or NG
OK >> A/T device is OK.
NG >> Replace A/T device.
Steering Wheel Tilt Switch Circuit InspectionINFOID:0000000003533202
1.CHECK FUNCTION
With CONSULT-II
With “TILT SW-UP, TILT SW-DOWN” on the DATA MONITOR, oper-
ate the ADP steering wheel tilt switch to check ON/OFF operation.
Monitor item
[OPERATION or UNIT]Contents
DETENT SW“ON/
OFF”The A/T selector lever position “P position (OFF)/other
than P position (ON)” judged from the park position switch
signal is displayed.
PIIA0291E
6 - 21 : Continuity should exist.
6 - Ground : Continuity should not exist.
LIIA1024E
Terminals Condition Continuity
56P position No
Other than P position Yes
LIIA1491E
Monitor item [OPERATION or
UNIT]Contents
TILT SW-UP “ON/OFF”Operation (ON)/open (OFF) status
judged from the tilt switch (FR) signal is
displayed.
TILT SW-DOWN “ON/OFF”Operation (ON)/open (OFF) status
judged from the tilt switch (RR) signal is
displayed.
PIIA0315E

AUTOMATIC DRIVE POSITIONER
SE-73
< SERVICE INFORMATION >
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UART Communication Line Circuit InspectionINFOID:0000000003533204
1.CHECK UART LINE INPUT/OUTPUT SIGNAL 1
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Check the following.
• When voltage wave form does not appear with a constant voltage (approx. 5V), replace driver
seat control unit.
• When voltage wave form does not appear with a constant voltage (approx. 0V), replace auto-
matic driver seat control unit.
2.CHECK UART LINE INPUT/OUTPUT SIGNAL 2
Check signal between automatic drive positioner control unit con-
nector ground, with oscilloscope.
OK or NG
OK >> GO TO 3.
NG >> Check the following.
• When voltage wave form does not appear with a constant voltage (approx. 5V), replace auto-
matic drive positioner control unit.
• When voltage wave form does not appear with a constant voltage (approx. 0V), replace driver
seat control unit.
3.CHECK UART LINE HARNESS
ConnectorTe r m i n a l s
Condition Signal
(+) (-)
P2 17 GroundPedal ad-
justing
switch ON
(FOR-
WARD or
BACK-
WARD op-
eration)
PIIA4599E
PIIA4814E
ConnectorTe r m i n a l s
Condition Signal
(+) (-)
M33 10 GroundPedal ad-
justing
switch ON
(FOR-
WARD or
BACK-
WARD op-
eration)
PIIA4816E
PIIA4813E

SRS-18
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
CONSULT-II Function
INFOID:0000000003532866
HOW TO CHANGE SELF-DIAGNOSIS MODE WITH CONSULT-II
From User Mode to Diagnosis Mode
After selecting “AIR BAG” on the “SELECT SYSTEM” screen, User mode automatically changes to Diagnosis
mode.
From Diagnosis Mode to User Mode
To return to User mode from Diagnosis mode, touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears, Diagnosis mode automatically changes to User mode.
AIR BAG diagnostic mode Description
SELF-DIAG [CURRENT]A current Self-diagnosis result (also indicated by the number of warning lamp flashes in the Diagnosis
mode) is displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring
repairs.
SELF-DIAG [PAST]Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The
stored results will remain until memory erasing is executed.
TROUBLE DIAG RECORDWith TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.
ECU DISCRIMINATED NO.The air bag diagnosis sensor unit for each vehicle
model is assigned with its own, individual classifi-
cation number. This number will be displayed on
the CONSULT-II screen, as shown. When replac-
ing the air bag diagnosis sensor unit, refer to the
part number for the compatibility. After installation,
replacement with a correct unit can be checked by
confirming this classification number on the CON-
SULT-II screen.
The air bag diagnosis sensor unit discriminated
number assigned is F649.
PASSENGER AIR BAGThe STATUS (readiness) of the front passenger air
bag module is displayed. The STATUS displayed
(ON/OFF) depends on the signals supplied to the
occupant classification system control module and
air bag diagnosis sensor unit. Refer to SRS-6, "
Oc-
cupant Classification System (OCS)" for more in-
formation.
ARS366
WHIA0290E
SRS803

SPIRAL CABLE
SRS-37
< SERVICE INFORMATION >
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SRS
N
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SPIRAL CABLE
Removal and InstallationINFOID:0000000003532874
REMOVAL
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Remove the steering wheel. Refer to PS-7
.
2. Remove the column cover upper and lower.
3. Remove wiper and washer switch connector, then pinch the tabs
at wiper and washer switch base and slide away from steering
column to remove.
4. While pressing tabs, pull lighting and turn signal switch toward
driver door and disconnect from base.
WHIA0233E
1. Steering wheel 2. Lighting and turn signal switch 3. Wiper and washer switch
4. Spiral cable 5. Driver air bag module connector 6. Column cover upper
7. Column assembly 8. Column cover lower 9. Screw (Do not remove)
10. Screw
LHIA0034E
LHIA0035E

TF-1
DRIVELINE/AXLE
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SECTION TF
A
B
TF
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CONTENTS
TRANSFER
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Precaution for Transfer Assembly and Transfer
Control Unit Replacement .........................................
3
Precaution .................................................................4
Service Notice ...........................................................4
PREPARATION ...................................................6
Special Service Tool .................................................6
Commercial Service Tool ..........................................9
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ............................
10
NVH Troubleshooting Chart ....................................10
TRANSFER FLUID .............................................11
Replacement ...........................................................11
Inspection ................................................................11
ALL-MODE 4WD SYSTEM ................................12
Cross-Sectional View ..............................................12
Power Transfer ........................................................12
System Description .................................................14
Schematic ...............................................................19
CAN Communication ...............................................20
TROUBLE DIAGNOSIS .....................................21
How to Perform Trouble Diagnosis .........................21
Location of Electrical Parts ......................................22
Circuit Diagram .......................................................23
Wiring Diagram - T/F - .............................................24
Inspections Before Trouble Diagnosis ....................31
Trouble Diagnosis Chart by Symptom ....................34
Transfer Control Unit Input/Output Signal Refer-
ence Value ..............................................................
35
CONSULT-II Function (ALL MODE AWD/4WD) .....42
Self-Diagnosis Procedure .......................................48
TROUBLE DIAGNOSIS FOR SYSTEM ............51
Power Supply Circuit for Transfer Control Unit ........51
Transfer Control Unit ...............................................53
Output Shaft Revolution Signal (TCM) ....................53
Vehicle Speed Sensor (ABS) ..................................54
Neutral-4LO Switch .................................................54
4WD Shift Switch .....................................................57
Wait Detection Switch ..............................................60
PNP Switch Signal (TCM) .......................................63
Actuator Motor .........................................................64
Actuator Position Switch ..........................................69
Transfer Control Device ...........................................72
Engine Speed Signal (ECM) ....................................76
Clutch Pressure Solenoid ........................................76
2-4WD Solenoid ......................................................80
Transfer Motor .........................................................84
Transfer Fluid Temperature .....................................90
Clutch Pressure Switch ...........................................92
Line Pressure Switch ...............................................94
Throttle Position Signal (ECM) ................................97
ABS Operation Signal (ABS) ...................................97
VDC Operation Signal (ABS) ...................................98
TCS Operation Signal (ABS) ...................................98
CAN Communication Line .......................................99
ATP Switch ..............................................................99
TROUBLE DIAGNOSIS FOR SYMPTOMS ....102
4WD Shift Indicator Lamp and 4LO Indicator
Lamp Do Not Turn ON ...........................................
102
4WD Warning Lamp Does Not Turn ON ...............104
4WD Shift Indicator Lamp or 4LO Indicator Lamp
Does Not Change ..................................................
107
ATP Warning Lamp Turns ON ...............................109
4LO Indicator Lamp Repeats Flashing ..................110
4WD Warning Lamp Flashes Rapidly ....................111
4WD Warning Lamp Flashes Slowly .....................112
Heavy Tight-corner Braking Symptom Occurs ......113
4WD System Does Not Operate ............................114
TRANSFER CONTROL UNIT .........................115
Removal and Installation .......................................115

TF-4
< SERVICE INFORMATION >
PRECAUTIONS
Precaution
INFOID:0000000003532508
•Before connecting or disconnecting the transfer control unit
harness connector, turn ignition switch “OFF” and disconnect
battery ground cable. Failure to do so may damage the trans-
fer control unit. Battery voltage is applied to transfer control
unit even if ignition switch is turned “OFF”.
•When connecting or disconnecting pin connectors into or
from transfer control unit, take care not to damage pin termi-
nals (bend or break).
When connecting pin connectors make sure that there are not
any bends or breaks on transfer control unit pin terminals.
•Before replacing transfer control unit, perform transfer con-
trol unit input/output signal inspection and make sure transfer
control unit functions properly. Refer to TF-35, "
Transfer Con-
trol Unit Input/Output Signal Reference Value".
Service NoticeINFOID:0000000003532509
• After overhaul refill the transfer with new transfer fluid.
• Check the fluid level or replace the fluid only with the vehicle parked on level ground.
• During removal or installation, keep inside of transfer clear of dust or dirt.
• Disassembly should be done in a clean work area.
• Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign matter.
• Check for the correct installation status prior to removal or disassembly. If matchmarks are required, be cer-
tain they do not interfere with the function of the parts when applied.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with new ones if necessary.
• Gaskets, seals and O-rings should replaced any time the transfer is disassembled.
• In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If tight-
ening sequence is specified, use it.
• Observe the specified torque when assembling.
• Clean and flush the parts sufficiently and blow-dry them.
• Be careful not to damage sliding surfaces and mating surfaces.
SEF289H
SEF291H
MEF040DB

TF-18
< SERVICE INFORMATION >
ALL-MODE 4WD SYSTEM
LINE PRESSURE SWITCH
• With the transfer system design, control of the oil pressure provides the transmission of drive torque to the
front wheels. The main pressure to control the oil pressure is referred to as the line pressure.
• The line pressure switch determines whether or not adequate line pressure has built up under different oper-
ating conditions.
• The line pressure switch turns ON when line pressure is produced.
• The line pressure switch senses line pressure abnormalities and turns the 4WD warning lamp ON.
CLUTCH PRESSURE SWITCH
• The clutch pressure switch determines whether or not adequate clutch pressure has built up under different
operating conditions.
• The clutch pressure switch turns ON when clutch pressure is produced.
• The clutch pressure switch senses clutch pressure abnormalities and turns the 4WD warning lamp ON.
TRANSFER FLUID TEMPERATURE SENSOR
The transfer temperature sensor detects the transfer fluid temperature and sends a signal to the transfer con-
trol unit.
TRANSFER CONTROL UNIT
• Transfer control unit controls transfer control device by input signals of each sensor and each switch.
• Self-diagnosis can be done.
TRANSFER CONTROL DEVICE
The transfer control device changes the state of transfer assembly between 2WD, AUTO, 4H⇔4LO with the
2WD, AUTO, 4H and 4LO signals of 4WD shift switch.
NOTE:
• To shift between 4H⇔4LO, stop the vehicle, depress the brake pedal and shift the transmission selector to
the "N" position. Depress and turn the 4WD shift switch. The shift switch will not shift to the desired mode if
the transmission is not in "N" or the vehicle is moving. The 4LO indicator lamp will be lit when the 4LO is
engaged.
• Actuator motor and actuator position switch are integrated.
4WD SHIFT SWITCH AND INDICATOR LAMP
4WD Shift Switch
The 4WD shift switch allows selection from 2WD, AUTO, 4H or 4LO.
4WD Shift Indicator Lamp
• Displays driving conditions selected by 4WD shift switch with 2WD, AUTO and 4H indicators while engine is
running. (When 4WD warning lamp is turned on, all 4WD shift indicator lamps are turned off.)
• Turns ON for approximately 1 second when ignition switch is turned ON, for purpose of lamp check.
4LO Indicator Lamp
• Displays 4LO condition while engine is running. 4LO indicator lamp flashes if transfer gear does not shift
completely under 2WD, AUTO, 4H⇔4LO. (When 4WD warning lamp is turned on, 4LO indicator lamp is
turned off.)
• Turns ON for approximately 1 second when ignition switch is turned ON, for purpose of lamp check.
4WD WARNING LAMP
Turns ON or FLASH when there is a malfunction in 4WD system.
Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF for approximately 1
second after the engine starts if system is normal.
4WD Warning Lamp Indication
Condition Content 4WD warning lamp
During self-diagnosis Indicates the malfunction position by number of flickers. Flickers at malfunction mode.
Lamp check*Checks the lamp by turning ON during engine starting. After
engine starts, it turns OFF if there are no malfunctions.ON
Malfunction in 4WD system*Turns ON to indicate malfunction. When ignition switch is
turned to “OFF” or the malfunction is corrected, it turns OFF.ON
When vehicle is driven with different
diameters of front and rear tiresFlickers once every 2 seconds.
Turns OFF when ignition switch is “OFF”.Flickers once every 2 sec-
onds.