4WD INFINITI QX56 2004 Factory Workshop Manual

TF-16
ALL-MODE 4WD SYSTEM
Revision: August 20072004 QX56
LINE PRESSURE SWITCH
1. 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
operating conditions.
2. The line pressure switch turns ON when line pressure is produced.
3. The line pressure switch senses line pressure abnormalities and turns the 4WD warning lamp ON.

ALL-MODE 4WD SYSTEM
TF-17
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: August 20072004 QX56
Circuit Diagram for Quick Pinpoint CheckEDS0017S
WDWA0033E

TF-18
ALL-MODE 4WD SYSTEM
Revision: August 20072004 QX56
Wiring Diagram — T/F —EDS0017T
WDWA0014E

ALL-MODE 4WD SYSTEM
TF-19
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: August 20072004 QX56
WDWA0009E

TF-20
ALL-MODE 4WD SYSTEM
Revision: August 20072004 QX56
WDWA0034E

ALL-MODE 4WD SYSTEM
TF-21
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: August 20072004 QX56
WDWA0035E

TF-22
ALL-MODE 4WD SYSTEM
Revision: August 20072004 QX56
WDWA0004E

ALL-MODE 4WD SYSTEM
TF-23
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: August 20072004 QX56
WDWA0036E

TF-24
ALL-MODE 4WD SYSTEM
Revision: August 20072004 QX56
WDWA0005E

ALL-MODE 4WD SYSTEM
TF-25
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: August 20072004 QX56
WDWA0037E