Lippert Components ground control 3.0 User manual

Rev: 05.23.2017 Page 1
Ground Control® 3.0
(5th Wheel)
4 Point and 6 Point
SERVICE MANUAL

Rev: 05.23.2017 Page 2 Ground Control 3.0 Service Manual
System and Safety Information
TABLE OF CONTENTS
System and Safety Information 2
Prior to Operation 3
Touch Pad Diagram 3
Operation 4
Basic Jack Operation 4
Unhitching From A Tow Vehicle 4
Auto Level 5
Auto Level Sequence 5
Hitch Recognition 6
Troubleshooting 6
Manual Override 6
Touch Pad Error Codes 8
Special Jack Error Codes 9
System Settings 9
Zero Point Calibration 9
Homing Jacks 10
Component Replacement 10
Landing Gear Replacement 10
Rear Jack Replacement 11
Rear Sensor Replacement 11
Controller Replacement 16
Touch Pad Replacement 17
Jack Motor Replacement 17
Preventive Maintenance 17
Wiring Diagram - 4 Point 18
6 Point Wiring Diagram 19
Ground Control 3.0 4 Point Assembly 20
Ground Control 3.0 6 Point Assembly 21
Ground Control 3.0 4 Point Aftermarket Assembly 22
Ground Control 3.0 6 Point Aftermarket Assembly 23
Ground Control 3.0 Components 24 - 27
Failure to act in accordance with the following may result in death or serious personal injury. The use
of the Ground Control® 3.0 leveling system to support the trailer for any reason other than which it
is intended is prohibited by Lippert’s limited warranty. The Lippert leveling system is designed as a
“leveling” system only and should not be used to provide service for any reason under the trailer such
as changing tires or servicing the leveling system. Any attempts to change tires or perform other service
while trailer is supported by the Ground Control 3.0 leveling system could result in damage to the 5th
wheel and/or cause death or serious injury.
Moving parts can pinch, crush or cut. Keep clear and use caution.

Rev: 05.23.2017 Page 3 Ground Control 3.0 Service Manual
Callout Description
A Up Arrow - Scrolls up through the menu on LCD.
B Down Arrow - Scrolls down through the menu on LCD.
C Enter - Activates modes and procedures indicated on LCD.
DRetract - Places leveling system into retract mode.
- Press and hold down for 1 second to initiate Auto Retract.
E LCD Display - Displays procedures and results.
F Auto Level - Places leveling system into auto level mode.
G Front Jack Button - Activates front jacks in manual mode.
H Left Jack Button - Activates left jacks in manual mode.
I Right Jack Button - Activates right jacks in manual mode.
J Rear Jack Button - Activates rear jacks in manual mode.
K Power Button - Turns leveling system on and off.
Fig. 1
AE
FH
G
B
C
D
J
I
K
Prior to Operation
The leveling system should only be operated under the following conditions:
1. The trailer is parked on a reasonably level surface.
2. Be sure all persons, pets, and property are clear of the trailer while the leveling system is in operation.
3. Make sure battery(ies) are fully charged and test at 12+VDC under load.
Touch Pad Diagram

Rev: 05.23.2017 Page 4 Ground Control 3.0 Service Manual
Basic Jack Operation
Operation
Unhitching From A Tow Vehicle
Landing gear (front jacks) can be operated any time the system is “ON”. By pushing the “FRONT” button (Fig.
1G), both front jacks can be extended. By pushing either the "FRONT" and “LEFT” (Fig. 1H) or "FRONT" and
“RIGHT” (Fig. 1I) buttons, the individual front jacks can be extended. If the touch pad is put in the retract
mode, indicated by the orange illuminated LED next to the “RETRACT” button (Fig. 1D), the front jacks can
be retracted together by pushing the “FRONT” button (Fig. 1G) or individually by pressing “LEFT” (Fig. 1H) or
“RIGHT” (Fig. 1I) buttons, while simultaneously pressing the “FRONT” button (Fig. 1G).
Middle jacks, if equipped, can not be extended or retracted in standard mode or manual mode. Middle jacks
can only be operated in the special jack code error mode. In order to operate the middle jacks press "LEFT"
(FIG. 1H) and "RIGHT" (FIG. 1I) buttons simultaneously.
The rear jacks can only be extended when the touch pad is in the manual mode. Once system is in manual
mode, pressing the “REAR” button (Fig. 1J) will extend both rear jacks at the same time. To extend individual
rear jacks, press the “LEFT” (Fig. 1H) or “RIGHT” (Fig. 1I) buttons while simultaneously pressing the “REAR”
button (Fig. 1J), depending on which jack needs to be operated. If the touch pad is put in the retract mode,
indicated by the orange illuminated LED next to the “RETRACT” button (Fig. 1D), the rear jacks can be
retracted together by pushing the “REAR” button (Fig. 1J) or individually by pressing either the “LEFT” (Fig.
1H) or “RIGHT” (Fig. 1I) buttons, while simultaneously pressing the “REAR” button (Fig. 1J).
If the rear jacks will not operate individually using the method described above, but they operate properly
when Auto Level is performed, the Twist Prevention Protection system has locked out the operation to
prevent damage to the frame of the trailer.
NOTE: Prior to unhitching from the tow vehicle, ensure the trailer is parked on a level surface and be sure
to chock the tires of the trailer.
1. Extend the inner legs of both landing gear (front jacks) to within 4-5 inches of the ground by pulling on
the quick-release pins.
2. Push “ON/OFF” (Fig. 1K). LCD Screen will light up and display “READY JACKS: UP” (Fig. 2A).
3. Push the “UP” arrow (Fig. 1A) to scroll to “Drop Front Jacks” option on LCD screen.
4. Red indicator lights (Fig. 2B) may come on, indicating the current disposition of the trailer. In this case,
the front and right sides of the trailer are low.
5. Push “ENTER” (Fig. 1C). Both front jacks will go to ground and stop.
6. Push the “FRONT” button (Fig. 1G) extending the front jacks to a sufficient height, which raises the
front of the trailer off of the tow vehicle’s 5th wheel hitch plate.
7. Pull tow vehicle away and park at a safe distance.
Be sure to park the trailer on solid, level ground. Clear all jack landing locations of debris and obstructions.
Locations should also be free of depressions. When parking the trailer on extremely soft surfaces, utilize
load distribution pads under each jack. People and pets should be clear of trailer while operating leveling
system. Never lift the trailer completely off the ground. Lifting the trailer so the wheels are not touching the
ground will create an unstable and unsafe condition.

Rev: 05.23.2017 Page 5 Ground Control 3.0 Service Manual
Auto Level
After unhitching from tow vehicle and parking the vehicle at a safe distance away from the trailer, press the “ON/OFF”
button (Fig. 1K) and then press “AUTO LEVEL” (Fig. 1F).
NOTE: Once the automatic leveling cycle has been started, it is important that there is no movement in the trailer until
the trailer has completed the leveling process. Failure to remain still during the leveling cycle could have an
effect on the performance of the leveling system.
NOTE: In order for hitch recognition feature to function, the auto level sequence must be started with the front of the
trailer above level.
Auto Level Sequence
1. When Auto Level Sequence begins, the front of the trailer will lower slightly to a point below level.
2. Rear jacks will be grounded.
3. A side-to-side leveling sequence occurs.
NOTE: At this point on the 6 Point System, the two middle jacks are grounded to stabilize the trailer.
The two middle jacks do not level the trailer.
4. Each jack will perform a final grounding touch.
5. LCD will read “AUTO LEVEL SUCCESS” (Fig. 3).
6. LCD will then read “READY Jacks: Down” (Fig. 4A), and the green LED at the center of the four jack buttons will be
illuminated (Fig. 4B).
Fig. 3
Fig. 2
B
A
Fig. 4
A
B
NOTE: If the AUTO LEVEL sequence does not perform as described, place the system in manual mode and
test that the jacks operate correctly by pushing their coordinating buttons on the touch pad; i.e.
"FRONT" button operates only the front jacks, etc.

Rev: 05.23.2017 Page 6 Ground Control 3.0 Service Manual
Fig. 5
A
B
Hitch Recognition
1. Turn on the touch pad.
2. Push the “UP” arrow (Fig. 5A) to scroll to
“Auto Reconnect” option on the LCD screen.
3. Push "ENTER" (Fig. 5B). The rear jacks and
middle jacks (if equipped) will retract first,
then the front jacks will extend to raise the
trailer to the height where the auto level
sequence was started.
NOTE: If the auto level sequence was started
with the front of the trailer in a below-
level condition, the Hitch Recognition
will not function and the LCD will display
“Feature Disabled.” In order for the Hitch
Recognition feature to function, the auto
level sequence must be started with the
front of the trailer above level.
Troubleshooting
Manual Override
NOTE: For ease of manual override it is recommended to unplug the power harness to the motor prior to
performing the manual override procedure.
NOTE: Use of a 12-18 volt cordless screw gun or pneumatic screw gun is acceptable to manually override
the jacks. Do not use an impact screw gun to perform any of the override procedures, as this may
damage the motor. If manual override is necessary there are two options.
Top of Jack Motor Override:
Tools needed: ⁄” drive ratchet and extension (no socket)
1. Find the port on the top of the jack motor (Fig. 6A).
2. Remove the rubber plug (Fig. 7A).
3. Insert the ⁄” drive into the port (Fig. 8).
4. Turn override until the jack extends or retracts to desired position.
Ensure the trailer is supported at both the front and rear with jack stands before performing any
troubleshooting or service to the trailer. Failure to do so may result in death or personal injury.

Rev: 05.23.2017 Page 7 Ground Control 3.0 Service Manual
Bottom of Jack Motor Override:
Tools needed: ⁄” drive ratchet and extension, ⁄” socket
1. Find the port on the bottom of the jack motor (Fig. 9A).
2. Remove the rubber plug (Fig. 10A).
3. Insert the ⁄” socket into the port (Fig. 11).
4. Turn override until the jack extends or retracts to desired position.
Fig. 7
A
Fig. 8
Fig. 6
A
Fig. 10
A
Fig. 11
Fig. 9
A

Rev: 05.23.2017 Page 8 Ground Control 3.0 Service Manual
Touch Pad Error Codes
NOTE: To clear an error code from the touch pad, repair or otherwise correct the issue, then press “ENTER.”
If the error is still present, the message will be displayed again.
LCD Message What's Happening? What Should Be Done?
****ERROR****
Excess Angle
Controller not properly secured. Check and secure controller placement.
Excessive angle reached during
auto operation. Relocate the trailer.
****ERROR****
Excessive Angle
Controller not properly secured. Check and secure controller placement.
Excessive angle reached during
manual operation. Relocate the trailer.
****ERROR****
Feature Disabled
Front of trailer below level when
starting Auto Level process (only
when trying to initiate Hitch
Recognition).
Using manual mode on the touch pad, retract rear
jacks (which includes the middle, if equipped) and
set landing gear (front jacks) to hitch height.
Touch pad power not cycled
between consecutive leveling
operations.
Turn touch pad off and then back on to reset the
system.
Zero point not set. Set zero point.
****ERROR****
Low Voltage
Battery voltage dropped below
10.8V.
Check wiring - repair or replace.
Test battery voltage under load - charge or replace.
****ERROR****
Out Of Stroke
Jack has reached maximum stroke
length and is unable to lift. Check disposition of jacks. Relocate the trailer.
Unexpected high amp current stall.
Check jacks in manual mode or perform manual
override procedure. Repair or replace as needed.
Check for bent or damaged jacks. Repair or replace
as needed.
****ERROR****
External Sensor
Bad connection or wiring from the
controller to the rear sensor. Replace or repair connection to rear remote sensor.
****ERROR****
Jack Time Out
Time limit exceeded for the
requested auto operation. Check disposition of jacks.
****ERROR****
Auto Level Fail
Unable to auto level due to uneven
ground. Check disposition of jacks. Relocate the trailer.
Unable to auto level due to zero
point being set incorrectly. Reset zero point.
****ERROR****
Comm Error
Communication between controller
and touch pad has been lost.
Check harness for proper connections or damage.
Replace if necessary.
****ERROR****
Bad Calibration
Sensor calibration values are out of
range. Replace controller.
****ERROR****
Internal Sensor Internal sensor problem. Replace controller.
**PANIC STOP**
Function Aborted
The user pressed a button on the
touch pad during an automatic
operation.
Restart automatic operation and then refrain from
pressing any buttons on the touch pad.
****ERROR****
Hall Effect Short
Short circuit detected in one of the
hall effect circuits. Test for short and repair or replace.

Rev: 05.23.2017 Page 9 Ground Control 3.0 Service Manual
Special Jack Error Codes
To clear one of the error codes listed below:
1. Correct or otherwise repair the issue (see the table below).
NOTE: In order to clear the special jack error code the jacks need to be "homed." In order to "home" jacks,
each jack must be able to retract a minimum of 6".
2. Extend all jacks to reach the 6" of minimum retract needed.
A. Press "FRONT" (Fig. 1G) to extend the front jacks (if required).
B. Press "REAR" (Fig. 1J) to extend the rear jacks (if required).
C. Press "LEFT" and "RIGHT" (Figs 1H and Fig. 1I) simultaneously to extend the middle jacks (if
equipped and required).
3. Press and hold the retract button until all of the jacks begin to retract. The jacks will retract until they
reach the hard current limit.
4. The jacks are now “homed” and the special jack error code will be cleared.
NOTE: If the jacks do not retract, an error should display on the touch pad screen. This is typically caused by
wiring interruption.
LCD Message What's Happening? What Should Be Done?
***ERROR***
LF Jack
RF Jack
LM Jack
RM Jack
LR Jack
RR Jack
Error at a specific jack (left
front, right front, left middle,
right middle, left rear, right
rear). Hall signal issue (open,
short, malfunction or loss of
communication); open or short
circuit between controller and
motor.
Check harness connections
at controller and at jack.
Check harness for damage.
Check fuses at controller.
Repair or replace as necessary.
System Settings
Zero Point Calibration
The “Zero Point” is the programmed point that the trailer will return to each time the Auto Level feature is
used.
NOTE: Prior to starting this procedure, double check all connections on the controller, jacks, and touch pad.
1. In manual mode, run the jacks to level the trailer. This is best achieved by placing a level in the center
of the trailer and leveling it both front to back and then side to side. (See “Basic Jack Operation” for
instructions on how to manually operate the system).
2. Once the trailer is level, turn off the touch pad.
3. With the touch pad off, press and release the “FRONT” button (Fig. 1G) five (5) times and then press
and release the “REAR” button (Fig. 1J) five (5) times.
4. The touch pad will flash and beep and the display will read “ZERO POINT CALIBRATION ENTER to set,
Power to Exit” (Fig. 12).
5. To set the current position as the zero point, press the “ENTER” button (Fig. 1C).
6. LCD display will read “Zero point stability check” (Fig. 13).
7. LCD display will read “Zero point set successfully” once process is complete (Fig. 14).
8. The system will set this point as its level state and the touch pad will turn off.
Fig. 12 Fig. 13 Fig. 14

Rev: 05.23.2017 Page 10 Ground Control 3.0 Service Manual
Homing Jacks
NOTE: When components are added or replaced the system will need to be homed. Run the system by pressing
"FRONT" (Fig. 1G). A special jack error code should occur. If not, introduce the special jack error code.
NOTE: To introduce an error, disconnect 1 of the hall effect sensor wires from the controller. After
attempting to operate the disconnected jack, the touch pad screen will display an error. Reconnect
the hall effect sensor wire.
NOTE: In order to clear the special jack error code the jacks need to be "homed." In order to "home" jacks,
each jack must be able to retract a minimum of 6".
1. Extend all jacks to reach the 6" of minimum retract needed.
A. Press "FRONT" (Fig. 1G) to extend the front jacks (if required).
B. Press "REAR" (Fig. 1J) to extend the rear jacks (if required).
C. Press "LEFT" and "RIGHT" (Fig. 1H and Fig. 1I) simultaneously to extend the middle jacks (if
equipped and required).
2. Press and hold the retract button until all of the jacks begin to retract. The jacks will retract until they
reach the hard current limit.
3. The jacks are now “homed” and the special jack error code will be cleared.
NOTE: Note: If the jacks do not retract, an error should display on the touch pad screen. This is typically
caused by wiring interruption.
Component Replacement
NOTE: After replacing any of these
components, you will need to "home"
the jacks. See the corresponding
sections for instructions.
Landing Gear Replacement
1. Remove existing landing gear from the
trailer by removing the carriage bolts
and nuts holding the landing gear in
place in the brackets.
2. Using the new carriage bolts (Fig. 15A)
and nuts (Fig. 15B), mount the new
landing gear (Fig. 15C) in the mounting
brackets (Fig. 15D) so that the tabs
(Fig. 15E) on the new landing gear are
positioned between the mounting
brackets as shown in Fig. 15. Tighten
the nuts on the carriage bolts until
the bracket opening is less than 2 ½”
(Fig. 16).
3. Connect the wire harnesses (Fig. 16A)
to the landing gear motor wires and
run the harnesses to the compartment
where the controller will be mounted.
NOTE: LCI recommends zip-tying the
harnesses tight against the landing
gear motors to prevent damage to
the harnesses.
Fig. 16
A
Fig. 15
A
B C
D
E
Main
Frame
Rail

Rev: 05.23.2017 Page 11 Ground Control 3.0 Service Manual
Rear Jack Replacement
1. Mark mounting location of current rear jack on the bracket.
2. Unbolt the jack from mounting bracket.
3. Bolt the new rear jack (Fig. 17C) to the mounting bracket (Fig. 17B) using six bolts (Fig. 17D) and nuts
(Fig. 17A) per jack. Tighten the bolts to 90 lb.-ft. of torque.
4. Ensure the new jack is mounted in the same location as the previous jack.
5. Connect the wire harnesses to the rear jack motor wires.
NOTE: LCI recommends zip-tying the harnesses tight against the rear jack motors to prevent damage to
the harnesses.
Rear Sensor Replacement
1. Locate the rear sensor in the underbelly of the trailer.
2. Cut an access panel in the underbelly using a knife. The rear sensor should be installed on the
crossmember to the rear of the back axle, centered curbside to roadside on the trailer.
Be sure not to cut any hoses or wires that may be under the underbelly.
Fig. 17
Main Frame Rail
A
B
C
D

Rev: 05.23.2017 Page 12 Ground Control 3.0 Service Manual
3. Disconnect the rear sensor harness from the connector on the rear sensor (Fig. 18A).
Fig. 19
4. Remove the screws (Fig. 19D), mounting plate (Fig. 19C) and sensor (Fig. 19B) assembly from the
crossmember (Fig. 19A).
Fig. 18
A
A
B
C
D

Rev: 05.23.2017 Page 13 Ground Control 3.0 Service Manual
5. Remove the screws (Fig. 20C) from the rear sensor (Fig. 20A) and mounting plate (Fig. 20B) and remove
the sensor from the plate.
6. Dry fit the mounting plate (Fig. 21C) and the replacement rear sensor (Fig. 21B) to the crossmember
(Fig. 21A). The pre-drilled holes in the plate are for mounting the rear sensor to the plate. Mark on the
plate where the rear sensor will set. Space between the sensor and the crossmember must be left so
the wire harness will not be pinched.
Fig. 20
A
B
C
Fig. 21
A
B
C

Rev: 05.23.2017 Page 14 Ground Control 3.0 Service Manual
Fig. 22
A
B
C
7. Attach the replacement rear sensor (Fig. 22A) to the mounting plate (Fig. 22B) using two ⁄" hex
head self-tapping screws (Fig. 22C). Orientation is imperative for the correct operation of the leveling
system.
8. Attach the mounting plate (Fig. 23C) and replacement sensor (Fig. 23B) assembly to the crossmember
(Fig. 23A) using two ⁄" hex head self tapping screws (Fig. 23D). Ensure that the plate is centered side
to side on the frame and that the sensor is oriented properly (Fig. 23).
Fig. 23
A
B
C
D

Rev: 05.23.2017 Page 15 Ground Control 3.0 Service Manual
9. Connect the rear sensor harness to the connector on the rear sensor (Fig. 24A) and run the harness
through the frame and up to the compartment where the controller will be mounted.
Fig. 24
A

Rev: 05.23.2017 Page 16 Ground Control 3.0 Service Manual
Controller Replacement
1. Disconnect all jack harnesses from the connectors on the controller.
2. Remove the power and ground harness from the controller.
3. Remove the controller (Fig. 25A) from the ceiling of the compartment.
4. Using four #8 x 1” wood screws (Fig. 25B), attach the replacement controller (Fig. 25A) to the ceiling of
the compartment, in the same position as the removed controller.
5. The controller should be positioned directly in the center of the trailer with the arrow on the label of
the controller facing the front of the trailer (Fig. 26).
6. Some 6 point controllers do not have orientation arrows for the front of the trailer. When installing
those controllers, ensure that the port labeled "LEFT FRONT" is pointing to the left-hand front of the
trailer. This will ensure proper orientation and function of the controller.
7. Attach the power and ground harness to the corresponding posts on the replacement controller and
then connect them to the correct posts on the house battery.
8. Connect all jack harnesses to the appropriate connectors on the replacement controller.
Fig. 26
Compartment Ceiling
Fig. 25
A
B

Rev: 05.23.2017 Page 17 Ground Control 3.0 Service Manual
Jack Motor Replacement
1. Using a ½" socket or wrench,
remove the two motor retention
bolts from the jack (Fig. 28A).
2. Remove the faulty motor from the
top of the jack (Fig. 29).
3. Gently position the replacement
motor into the coupler found inside
the jack.
4. Replace and tighten motor
retention bolts.
Fig. 28
A
Preventive Maintenance
1. For optimum performance, the system requires full battery current and voltage. The battery must be
maintained at full capacity.
2. Check the terminals and other connections at the battery, the controller, and the jacks for corrosion,
and loose or damaged connections.
3. Remove dirt and road debris from jacks as needed.
4. If jacks are down for extended periods, it is recommended to spray exposed leveling jack rods with a
silicone lubricant every three months for protection. If the trailer is located in a salty environment, it is
recommended to spray the rods every four to six weeks.
Touch Pad Replacement
1. Remove the face plate of the touch pad (Fig. 27B)
from the mounting bezel (Fig. 27A).
2. Unplug the harness from the connector on the
back of the face plate.
3. Plug the touch pad harness into the connector on
the back of the replacement touch pad face plate
and snap the face plate into the bezel.
Fig. 27
A
B
Fig. 29

Wiring Diagram - 4 Point
Hall Effect Landing Gear
LCD Touch Pad
LCD Touch
Pad Harness
Recommended
50 Amp Breaker
(OEM Supplied)
Hall Effect Landing Gear
Hall Effect
Harness
Hall Effect
Harness
Hall Effect
Jack
Hall Effect
Jack
Battery
4 Point Controller
Rear Sensor
Rear Sensor
Harness

6 Point Wiring Diagram
Battery
Hall Effect Landing Gear Hall Effect Landing Gear
Rear Sensor
Rear Sensor
Harness
LCD Touch Pad
Touch Pad Harness
6 Point
Controller
Hall Effect Jack Hall Effect Jack
Hall Effect Jack Hall Effect Jack
Recommended
50 Amp Breaker
(OEM Supplied)

Rev: 05.23.2017 Contact us: Lippert Components Inc. - www.lci1.com/support - Phone: [phone] - Email: [email protected] Page 20 of 28
LEVELING AND STABILIZATION
GROUND CONTROL®3.0 4 POINT ASSEMBLY
Power and
Ground
Harness
Hall Effect
Jacks; Left Rear
Snapper Pin
Rear
Sensor
Screw x4
Jack Mounting
Bracket x2
Landing
Gear x2
Bolt On
Pull Pin
Jack Mounting
Bolt & Nut x12
Carriage Bolt x4
Hall Effect
Jacks;
Right Rear
Landing Gear
Harnesses x2
Rear Jack
Harnesses x2 Top Lock Nut x4
Rear Sensor
Mounting Plate
LCD Touch Pad & Harness
Rear Sensor & Harness
4 Point Controller