2008 INFINITI QX56 Factory Service Manual

Page 1041 of 4083

INFINITI QX56 2008  Factory Service Manual 4WD SYSTEMDLN-11
< FUNCTION DIAGNOSIS > [ATX14B]
C
EF
G H
I
J
K L
M A
B
DLN
N
O PSystem DescriptionINFOID:0000000001737097
CONTROL SYSTEM
ABS actuator and electric unit 
(control unit) Transmits vehic

Page 1042 of 4083

INFINITI QX56 2008  Factory Service Manual DLN-12
< FUNCTION DIAGNOSIS >[ATX14B]
4WD SYSTEM
ALL-MODE 4WD Transfer Basic Control
SDIA3396E
Revision: March 2010
2008 QX56

Page 1043 of 4083

INFINITI QX56 2008  Factory Service Manual 4WD SYSTEMDLN-13
< FUNCTION DIAGNOSIS > [ATX14B]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
Hydraulic Control Circuits
TRANSFER CONTROL UNIT
• Transfer control unit controls transfer control dev
ice and it di

Page 1044 of 4083

INFINITI QX56 2008  Factory Service Manual DLN-14
< FUNCTION DIAGNOSIS >[ATX14B]
4WD SYSTEM
• Displays 4LO condition while engine is running. 4LO indicator lamp flashes if transfer gear does not shift
completely under 2WD, AUTO, 4H ⇔4LO. (

Page 1045 of 4083

INFINITI QX56 2008  Factory Service Manual 4WD SYSTEMDLN-15
< FUNCTION DIAGNOSIS > [ATX14B]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
TRANSFER FLUID TEMPERATURE SENSOR
The transfer fluid temperature sensor detects the trans fer fluid temperature and se

Page 1046 of 4083

INFINITI QX56 2008  Factory Service Manual DLN-16
< FUNCTION DIAGNOSIS >[ATX14B]
4WD SYSTEM
Actuator Motor
Moves shift rods when signaled by transfer control unit.
Actuator Position Switch
Detects actuator motor position and then sends signal

Page 1047 of 4083

INFINITI QX56 2008  Factory Service Manual 4WD SYSTEMDLN-17
< FUNCTION DIAGNOSIS > [ATX14B]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
CAN CommunicationINFOID:0000000001737099
Refer to  LAN-51, "DTC Index".
1. A: Transfer shut off relay E69
B: Transfer

Page 1048 of 4083

INFINITI QX56 2008  Factory Service Manual DLN-18
< FUNCTION DIAGNOSIS >[ATX14B]
DIAGNOSIS SYSTEM (T
RANSFER CONTROL UNIT)
DIAGNOSIS SYSTEM (TRA NSFER CONTROL UNIT)
CONSULT-III Function (ALL MODE AWD/4WD)INFOID:0000000001737100
FUNCTION
CONSUL