2011 INFINITI QX56 Factory Service Manual

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Page 1849 of 5598

INFINITI QX56 2011 Factory Service Manual
TRANSFER FLUID VISCOSITY LEARNINGDLN-47
< BASIC INSPECTION > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
TRANSFER FLUID VISCOSITY LEARNING
DescriptionINFOID:0000000006222242
Perform transfer

Page 1850 of 5598

INFINITI QX56 2011 Factory Service Manual
DLN-48
< BASIC INSPECTION >[TRANSFER: ATX90A]
CONFIGURATION (TRANSFER CONTROL UNIT)
CONFIGURATION (TRAN
SFER CONTROL UNIT)
DescriptionINFOID:0000000006388779
Perform writing unit parameter after repl

Page 1851 of 5598

INFINITI QX56 2011 Factory Service Manual
CONFIGURATION (TRANSFER CONTROL UNIT)DLN-49
< BASIC INSPECTION > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
When the alphabet of transfer cont rol actuator parameter is “C”.
When the alp

CONFIGURATION (TRANSFER CONTROL UNIT)DLN-49
< BASIC INSPECTION > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
When the alphabet of transfer cont rol actuator parameter is “C”.
When the alphabet of transfer cont rol actuator parameter is “H”.
When the alphabet of transfer cont rol actuator parameter is “N”.
NOTE:
For the sample illustrations, the new alphabet of unit parameter is “F”.
- Add the same number of unit parameter behind the new alphabet of unit parameter. NOTE:
For the sample illustration, the number of unit parameter is “3” and new unit parameter is “F3”.
2. Turn the ignition switch OFF to ON.
3. Select “UNIT CHARACTERISTICS WRITE” of CONSULT-III “WORK SUPPORT” for “ALL MODE AWD/
4WD”.
4. Input new unit parameter.
5. Select “Start”.
6. Check that "UNIT CHARACTERIS TICS WRITE COMPLETED" or "UNIT CHARACTERISTICS WRITE
ALREADY WRITTEN" is displayed.
>> WORK END.
3.WRITE UNIT PARAMETER (2)
With CONSULT-III
1. Make the new unit parameter with the following procedure.
- Confirm the alphabet of unit parameter (A).
NOTE:
This illustration is sample.
For this illustration, the unit parameter is “G3” and the alpha- bet of unit parameter is “G”.
- Confirm the alphabet of transfer control actuator parameter (B). NOTE:
Original transfer control actuator does not have marking of
alphabet.
Just in case that transfer cont rol actuator has been replaced, it
has marking of alphabet.
This illustration is sample of replaced transfer control actuator.
For this illustration, the alphabet of transfer control actuator parameter is “H”.
The alphabet of original unit parameter A B C D E F G H J
↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter A B C C D E E F G
The alphabet of original unit parameter A B C D E F G H J ↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter B C D D E F F G H
The alphabet of original unit parameter A B C D E F G H J ↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter C D E E F G G H J
JPDIE0258ZZ
JPDIE0294ZZ
Revision: 2010 May2011 QX56

Page 1852 of 5598

INFINITI QX56 2011 Factory Service Manual
DLN-50
< BASIC INSPECTION >[TRANSFER: ATX90A]
CONFIGURATION (TRANSFER CONTROL UNIT)
- Make new alphabet of unit palameter as to the alphabet
s of unit palameter and the transfer control actua-
tor pa

DLN-50
< BASIC INSPECTION >[TRANSFER: ATX90A]
CONFIGURATION (TRANSFER CONTROL UNIT)
- Make new alphabet of unit palameter as to the alphabet
s of unit palameter and the transfer control actua-
tor parameter, using following chart.
When the alphabet of transfer control actuator parameter is “C”.
When the alphabet of transfer control actuator parameter is “H”.
When the alphabet of transfer control actuator parameter is “N”.
NOTE:
For the sample illustrations, the new alphabet of unit parameter is “F”.
- Add the same number of unit parameter behind the new alphabet of unit parameter.
NOTE:
For the sample illustration, the number of unit parameter is “3” and new unit parameter is “F3”.
2. Turn the ignition switch OFF to ON.
3. Select “UNIT CHARACTERISTICS WRITE” of CO NSULT-III “WORK SUPPORT” for “ALL MODE AWD/
4WD”.
4. Input new unit parameter.
5. Select “Start”.
6. Check that "UNIT CHARACTERISTICS WRITE CO MPLETED" or "UNIT CHARACTERISTICS WRITE
ALREADY WRITTEN" is displayed.
>> WORK END.
4.WRITE UNIT PARAMETER (3)
With CONSULT-III
1. Confirm the unit parameter (A). NOTE:
This illustration is sample.
For this illustration, the unit parameter is “G3”.
2. Turn the ignition switch OFF to ON.
3. Select “UNIT CHARACTERISTI CS WRITE” of CONSULT-III
“WORK SUPPORT” for “ALL MODE AWD/4WD”.
4. Input unit parameter.
5. Select “Start”.
6. Check that "UNIT CHARACT ERISTICS WRITE COMPLETED"
or "UNIT CHARACTERISTICS WRITE ALREADY WRITTEN" is
displayed.
>> WORK END.
The alphabet of original unit parameter A B C D E F G H J ↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter A B C C D E E F G
The alphabet of original unit parameter A B C D E F G H J ↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter B C D D E F F G H
The alphabet of original unit parameter A B C D E F G H J ↓ ↓↓↓↓↓↓↓↓↓
The new alphabet of unit parameter C D E E F G G H J
JPDIE0258ZZ
Revision: 2010 May2011 QX56

Page 1853 of 5598

INFINITI QX56 2011 Factory Service Manual
P1802, P1803, P1804, P1809 TRANSFER CONTROL UNIT
DLN-51
< DTC/CIRCUIT DIAGNOSIS > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
DTC/CIRCUIT DIAGNOSIS
P1802, P1803, P1804, P1809 TRANSFER CONTRO

Page 1854 of 5598

INFINITI QX56 2011 Factory Service Manual
DLN-52
< DTC/CIRCUIT DIAGNOSIS >[TRANSFER: ATX90A]
P1807 OUT PUT SHAFT SPEED SENSOR
P1807 OUT PUT SHAFT SPEED SENSOR
DTC LogicINFOID:0000000006222246
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.

Page 1855 of 5598

INFINITI QX56 2011 Factory Service Manual
P1808 WHEEL SPEED SENSORDLN-53
< DTC/CIRCUIT DIAGNOSIS > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
P1808 WHEEL SPEED SENSOR
DTC LogicINFOID:0000000006222248
DTC DETECTION LOGIC
DTC CONFIRMA

P1808 WHEEL SPEED SENSORDLN-53
< DTC/CIRCUIT DIAGNOSIS > [TRANSFER: ATX90A]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
P1808 WHEEL SPEED SENSOR
DTC LogicINFOID:0000000006222248
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Start the engine and drive at 30 km/h (19 MPH) or more for approximately 1minute.
2. Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC
“P1808” detected?
YES >> Proceed to diagnosis procedure. Refer to DLN-53, "DTC Logic".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006222249
1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-III
Perform self-diagnosis for “ABS”.
Is any DTCs detected?
YES >> Check the DTCs.
NO >> GO TO 2.
2.ERASE SELF-DIAGNOSTIC RESULT
With CONSULT-III
1. Erase self-diagnostic results for “ALL MODE AWD/4WD”.
2. Start the engine and drive vehicle at 30 km/h (19 MPH) or more.
3. Check that ABS warning lamp turns OFF.
Does ABS warning lamp turn OFF?
YES >> GO TO 3.
NO >> Refer to BRC-122, "
Diagnosis Procedure".
3.CHECK TERMINALS AND HARNESS CONNECTORS
Check transfer control unit pin terminals for damage or loose connection with harness connector.
Is inspection result normal?
YES >> After turning the ignition switch OFF, perform DTC confirmation procedure again. When DTC
"P1808" is detected, Replace transfer control unit. Refer to DLN-107, "
Removal and Installation".
NO >> Repair or replace error-detected parts.
DTC Display item Malfunction detected condition Possible cause
P1808 VHCL SPEED SEN-ABS Malfunction is detected in vehicle
speed signal that is output from ABS
actuator and electric unit (control unit)
through CAN communication.
Improper signal is input while driving. Harness or connector (CAN communi-
cation line)
Malfunction of ABS actuator and elec-
tric unit (control unit)
- Malfunction of ABS actuator and elec-
tric unit (control unit) circuit error
- Vehicle speed signal error
Revision: 2010 May2011 QX56

Page 1856 of 5598

INFINITI QX56 2011 Factory Service Manual
DLN-54
< DTC/CIRCUIT DIAGNOSIS >[TRANSFER: ATX90A]
P180C SENSOR POWER SUPPLY (5V)
P180C SENSOR POWER SUPPLY (5V)
DescriptionINFOID:0000000006222250
Supplies power (5V) to transfer lock position senso

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