2004 INFINITI QX56 Factory Service Manual

Page 89 of 3371

INFINITI QX56 2004  Factory Service Manual AT-18
A/T CONTROL SYSTEM
Revision: August 20072004 QX56
A/T CONTROL SYSTEMPFP:31036
Cross-Sectional View (2WD models)UCS002CB
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Di

Page 90 of 3371

INFINITI QX56 2004  Factory Service Manual A/T CONTROL SYSTEM
AT-19
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
Cross-Sectional View (4WD models)UCS002C C
1. Front planetary gear 2. Mid planetary gear 3. Rear planetary gear
4. Dir

Page 91 of 3371

INFINITI QX56 2004  Factory Service Manual AT-20
A/T CONTROL SYSTEM
Revision: August 20072004 QX56
Shift MechanismUCS002CD
The automatic transmission uses compact dual planetary gear systems to improve power-transmission effi-
ciency, simplify

Page 92 of 3371

INFINITI QX56 2004  Factory Service Manual A/T CONTROL SYSTEM
AT-21
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
CLUTCH AND BAND CHART 
—Operates
—Operates during “progressive” acceleration.
—Operates and effects power

Page 93 of 3371

INFINITI QX56 2004  Factory Service Manual AT-22
A/T CONTROL SYSTEM
Revision: August 20072004 QX56
POWER TRANSMISSION 
“N” Position
Since both the forward brake and the reverse brake are released, torque from the input shaft drive is not t

Page 94 of 3371

INFINITI QX56 2004  Factory Service Manual A/T CONTROL SYSTEM
AT-23
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
“D”, “4”, “3”, “2” Positions 1st Gear
The forward brake and the forward one-way clutch regulate rever

Page 95 of 3371

INFINITI QX56 2004  Factory Service Manual AT-24
A/T CONTROL SYSTEM
Revision: August 20072004 QX56
“1  ” Position 1st Gear
The front brake fastens the front sun gear.
The forward brake and the forward one-way clutch regulate reverse rota

Page 96 of 3371

INFINITI QX56 2004  Factory Service Manual A/T CONTROL SYSTEM
AT-25
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: August 20072004 QX56
“D”, “4”, “3” Positions 2nd Gear
The forward brake and the forward one-way clutch regulate reverse rotati