L322 Range Rover System Description and Operation
AUTOMATIC TRANSMISSION – ZF 5HP24
44-2-26 DESCRIPTION AND OPERATION
Engine torque is transferred, via operation of single or combinations of clutches, to the planetary gear train. The
planetary gear train is controlled by reactionary inputs from brake clutches and the freewheel clutch to produce five
forward gears and one reverse gear.
The following tables show which clutches are operating for selected gear ratios and which solenoids are activated to
produce the required torque output from the transmission.
Gear Range Reference Chart
Gear Change Solenoid Reference Chart
Gear
Selector
Lever
Position
Gear
Engine
Braking
Yes/No
Ratio
Clutches
Freewheel
Locked Y/N
A
B
C
D
E
F
D
1
Y
3.57
X
Y
D
2
Y
2.20
X
X
D
3
Y
1.51
X
X
D
4
Y
1.00
X
X
D
5
Y
0.80
X
X
P/N
–
–
–
X
R
Y
– 4.10
X
X
Gear Selector
Lever Position
Gear
Shift Control Solenoids
Pressure Regulating Solenoids
SV1
SV2
SV3
EPRS1
EPRS2
EPRS3
EPRS4
EPRS5
D
1
ON
OFF
OFF
ON
ON –
ON
OFF
ON –
D
2
ON
ON
OFF
ON
OFF
ON
OFF
ON
D
3
OFF
ON
OFF
ON
ON
ON
OFF
OFF
D
4
OFF
ON
OFF
ON
OFF
OFF
– ON –
OFF
D
5
OFF
OFF
OFF
ON
ON
OFF
– ON –
OFF
N
ON
OFF
ON
ON
– ON
ON
OFF
– ON
R
OFF
ON
OFF
ON
ON –
ON
OFF
ON –
TCC Lock-up
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
ON = Active (pressure build up); OFF = Inactive; – = Inactive (pressure drain)