Lippert Power Steps 2.0 User manual

Power Steps 2.0
OEM INSTALLATION MANUAL

Rev: 12.15.21 Page 2 CCD-0005300
TABLE OF CONTENTS
Introduction 2
Safety 3
Resources Required 3
Installation 4
Installing the Power Steps 4
Wiring the Power Steps 5
Safety Label 6
Operation 7
Troubleshooting 7
Wiring Diagram 9
Introduction
This manual provides instructions for installation of Lippert Power Steps 2.0, which are equipped with a step
lockout switch, control unit and permanent magnet motor onto a motorized coach.
The control unit is a current sensor as well as a switching device. When the motor assembly moves the step
tread to its extended position, or stops moving because of an obstruction such as a curb or the binding of a
damaged or bent step frame, the motor draws a larger amount of current. The control unit senses the larger
current draw and shuts off the power to the motor.
Control units are equipped with an ignition override system. This system is designed so the vehicle will
not be driven with the step in the extended position. When the step is locked in the extended position,
the door closed, and the ignition is turned on, the ignition override system will engage and the step will
automatically retract.
The Auto Extend feature is another safety feature designed to extend the step when the door is opened for
the first time after the vehicle ignition is turned off, regardless of the position of the step switch.
NOTE: Refer to vehicle OEM owner’s manual (or OEM Requirements) which will provide switch position of
“on” or “off” for the step lock position.
For information on the assembly or individual components of this product, please visit:
https://support.lci1.com/steps/
NOTE: Images used in this document are for reference only when assembling, installing and/or operating
this product. Actual appearance of provided and/or purchased parts and assemblies may differ.

Rev: 12.15.21 Page 3 CCD-0005300
The "WARNING" symbol above is a sign that a procedure has a safety risk involved and may cause
death or serious personal injury if not performed safely and within the parameters set forth in this
manual.
Failure to follow instructions provided in this manual may result in death, serious personal injury
and/or severe product and property damage, including voiding of the component warranty.
Always wear eye protection when performing service, maintenance or installation procedures.
Other safety equipment to consider would be hearing protection, gloves and possibly a full face
shield, depending on the nature of the task.
The “CAUTION” symbol above is a sign that a safety risk is involved and may cause personal injury
and/or product or property damage if not safely adhered to and within the parameters set forth
in this manual.
Safety
Read and understand all instructions before installing or operating this product. Adhere to all safety labels.
This manual provides general instructions. Many variables can change the circumstances of the instructions,
i.e., the degree of difficulty, operation and ability of the individual performing the instructions. This
manual cannot begin to plot out instructions for every possibility, but provides the general instructions,
as necessary, for effectively interfacing with the device, product or system. Failure to correctly follow the
provided instructions may result in death, serious personal injury, severe product and/or property damage,
including voiding of the LCI limited warranty.
Resources Required
• Electric or cordless drill or screw gun
• Torque wrench, rated to 150 in-lbs
• Four 3/8"-16 UNC Bolts, Zinc , Gr5 minimum;
length determined by application
• Four 3/8"-16 UNC Lock nuts, hex nylon insert,
Zinc, Gr5 minimum
• Eight 3/8" SAE Washer, flat, Zinc, Gr5
• 3/8" Drive bit
• 3/8" Drill bit
The coach MUST be supported per manufacturer's specifications before working underneath.
Failure to do so may result in death or serious injury.
Moving parts can pinch, crush or cut. Keep clear and use caution.
All electrical wiring harnesses shall be loomed and secured to prevent possible damage and
installed in accordance with RVIA electrical standards.

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Installation
Installing the Power Steps
A
A
A
A
Fig. 1
1. If necessary, the use of a 12V power source to extend the steps may be used to improve accessibility of
the mounting holes in the top plate of the step.
2. Place steps under the pre-drilled holes in the chassis (Fig. 1A).
Stand to the side of the step during this operation to avoid the moving parts.
B
D
C

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3. Install 3/8"-16 bolts (Fig. 1B) in each corner of the steps.
NOTE: Lippert recommends using the front holes and rear slots located along each side of the
mountingplate.
4. Place a 3/8" flat washer (Fig. 1C) between the bolt head and mounting location.
5. Place another 3/8" flat washer (Fig. 1C) on the other side of the mounting location under the
locknut(Fig. 1D).
6. Tighten the fasteners.
NOTE: Do NOT fully tighten bolts.
7. Square the power steps with the unit, then torque all bolts to 80 in-lbs.
Wiring the Power Steps
All electrical wiring harnesses shall be loomed and secured to prevent possible damage and
installed in accordance with RVIA electrical standards.
Step control wiring is only to be used for step and step light (provided with the step) functions. Do
not splice, cut or tap into any of the step wiring. Failure to heed this warning may result in voiding of
the warranty and/or failure of the step control, which may result in the loss of step function or re in
the step control.
NOTE: Refer to Wiring Diagram when connecting the power steps to the unit.
Connect controller wire harnesses and individual wires as follows:
1. Connect the long 12 AWG green ground wire with the large ring terminal to the unit's chassis.
2. Connect the controller's 4-way harness as follows:
NOTE: Refer to Wiring Diagram for circuit breaker locations and values.
A. 16 AWG brown wire to one wire of the magnetic door switch. The other wire of the magnetic door
switch must be connected to chassis ground.
B. 16 AWG yellow wire to a circuit breaker connected to an IGN (ignition) terminal in the fuse block.
C. 12 AWG red wire to fuses connected to the battery disconnect box/switch and to one side of the
step switch.
D. 16 AWG white wire to the other side of the step switch.
NOTE: The remaining purple wire is for an optional porch light.

Rev: 12.15.21 Page 6 CCD-0005300
Door
Door
Black
Large magnetic
reed switch
Black
Small magnetic
reed switch
Black
Round magnetic
switch
Magnet
Switch
Switch
Upper
floor level
Door
Magnet
6"
minimum
Fig. 2
Refer to figure 2 for switch and magnet installation recommendations and common magnetic closure styles.
NOTE: Appearance of switches may vary depending on OEM.
Fig. 3
Safety Label
Install the safety WARNING sticker (Fig. 3) in a visible location on the inside of the door.

Rev: 12.15.21 Page 7 CCD-0005300
Operation
Stepping on a partially extended step may cause damage to the step frame. Do not use the step
until the step is fully extended.
If the vehicle is driven with the step in the extended position, product and/or property damage
mayoccur.
1. After the installation is complete, open the entrance door then turn the step override switch to the
"off"position.
A. Close the door.
I. The step should retract and lock in the up position.
II. The under-step light will be off.
B. Open the door.
I. The step should extend and lock in the down position.
II. The under-step light will be on.
NOTE: The under-step light is on when the step is extended and off when the step is retracted. If the coach
door/screen door is left open, the light will turn off after five minutes.
2. Turn the step override switch to the "on" position.
A. The step should remain in the extended position when the entry door is opened and closed.
B. The under-step light will turn off when the door is closed and on when the door is open.
3. With the step override switch turned on, the step extended and the entrance door closed, turn the
vehicle ignition on.
A. The ignition override system will go into effect.
B. The step will automatically retract.
NOTE: If the yellow wire from the four-way connector is not connected to an ignition power source, the
ignition safety system will be inoperative and the step will remain in the extended position. In this
case, the step override switch MUST be turned off for the step to retract.
4. Turn the vehicle ignition off and open the door.
A. The step will extend and lock in the down position. This is the Auto Extend feature.
B. When the vehicle ignition is turned on, the step will activate with the door movement, regardless
of the step override switch position.
Troubleshooting
The 12V DC automotive battery contains sulfuric acid which can cause severe burns. Avoid contact
with the skin, eyes and clothing. The automotive battery also produces hydrogen gas which is
explosive. Keep cigarettes, open ames and sparks away from the battery at all times.
Keep ngers, arms, and legs clear of step mechanism when testing.
If the power wire to the step is disconnected from its source and then reconnected, a spark is common. This
is caused by the momentary charging of the control unit and does not necessarily indicate the system is
staying on, which would cause a drain on the battery.
1. Make sure that all ground connections are securely fastened with good metal-to-metal contact. A good
ground is required for proper step operation.

Rev: 12.15.21 Page 8 CCD-0005300
2. If battery drain is suspected, observe the under-step light while the step is extending.
To determine if a control unit is not shutting off, which would also cause a drain on the battery, do
asfollows:
1. Remove the four-way connector to the chassis and the two-way connector between the step motor
and the control unit. See Wiring Diagram.
2. Place a voltmeter between the red and yellow motor wires at the two-way connector from the control
unit. Reconnect the four-way connector.
3. Turn the step override switch on. If any voltage registers on the voltmeter for more than five seconds,
the control unit is not shutting off and may be defective.
NOTE: When doing this test, switch the voltmeter leads back and forth between the red and yellow motor
wires to make sure no voltage registers.
4. If any voltage does register, disconnect the four-way connector to keep the step motor from
overheating.
5. If no voltage is present, the control unit has shut off and is normal.
If the step assembly does not work or operates erratically, such as extending only part way and then
shutting off, the first item that should be checked is the vehicle's battery.
1. Low supply voltage may cause erratic operation of the step.
2. Poor ground connections may also cause erratic operation of the step assembly.
3. Check battery voltage and condition.
A. A battery in good condition that is properly charged will have a voltage reading of approximately
12.6 volts with no load.
B. Check the voltage at the battery and also at the four-way connector located on the control unit.
C. Make sure that all battery and step control unit connections are clean and secured.
D. Recharge or replace the battery as necessary, then retest the step for proper operation.
The step assembly may operate erratically if the step is being operated directly from a converter, where the
output from the converter is not adequate or properly filtered for a clean DC voltage.
NOTE: The converter MUST be capable of producing a minimum of 30 amps for proper step
assemblyoperation.
If the ground to the control unit is lost, either between the step control unit and the vehicle chassis (the long
green ground wire) or between the vehicle battery and the ground (negative battery cable), the step will not
function.
1. Make sure the battery terminals and all wire connections are clean and tight.
2. Verify that all wires meet the minimum requirements. See Wiring Diagram.

Rev: 12.15.21 Page 9 CCD-0005300
Wiring Diagram

The contents of this manual are proprietary and copyright protected by Lippert Components, Inc. (LCI).
LCI prohibits the copying or dissemination of portions of this manual unless prior written consent from an
authorized LCI representative has been provided. Any unauthorized use shall void any applicable warranty.
The information contained in this manual is subject to change without notice and at the sole discretion of LCI.
Revised editions are available for free download from lippert.com.
Please recycle all obsolete materials.
For all concerns or questions, please contact
Lippert Components, Inc.
Ph: 432-LIPPERT (432-547-7378) | Web: lippert.com | Email: [email protected]