AMP RESEARCH 75121-01A Research Steps Installation Guide
- June 15, 2024
- AMP RESEARCH
Table of Contents
RESEARCH 75121-01A Research Steps
Installation Guide
75121-01A Research Steps
INSTALLATION TIME
3-5 Hours
Professional installation recommended
SKILL LEVEL
1 2 3 4
4= Experienced
TOOLS REQUIRED
- 13 mm socket
- 13 mm end wrench
- Ratchet wrench and extension
- Wire crimpers
- Wire stripper/cutter
- 3/16” hex key wrench (allen wrench )
- 4 mm hex key wrench (allen wrench )
- 5 mm hex key wrench (allen wrench )
WARRANTY
5-Year Limited Warranty
AMP RESEARCH POWERSTEPTM – JEEP WRANGLER (JK)
PARTS LIST AND HARDWARE IDENTIFICATION
1 x2
Step assembly
Slide motor assembly onto drive shaft and mounting bosses of driving linkage
assembly. Use flathead socket head cap screws (15) on the inner location. Next
use Flange head bolt (20) on outer location and tighten to 8 ft-lbs / 11Nm.
Motor faces to front of vehicle
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Insert U nut into position for front Idler Linkage mounting position.
Install Front Idler Linkage assembly. Use button head bolts with washers and
Hex flange bolt Torque to 16 ft-lbs.
Insert U nut into position for rear Drive Linkage mounting
position. 
Install Rear Drive Linkage assembly. Use button head bolts with washers and
Hex flange bolt Torque to 16 ft-lbs. (22Nm). Install light bracket on front
side of linkage as in step 4. 
Mount step extrusion to linkage assemblies.
Line up t-nuts in step assembly with slots in lower mounts of linkage
assemblies. Fasten loosely to allow for adjustments.
Line up rear of step extrusion with rear fender well. 
Tighten 4 socket cap screws with 3/16” allen wrench. Torque to 10 ft-lbs. (13.5 N-m)
Remove fuse from Power Step wire harness.
Install controller on passenger side at firewall. Secure with 11” cable ties.
Connect Red wire to positive battery terminal and Black wire to negative
battery terminal.
Route longest leg of wire harness across fire wall to driver side and under
vehicle outside of frame rail. Route shortest leg of wire harness down fire
wall and outside of frame rail on passenger side.
Remove passenger side front door sill. 
Lift carpet. Slit rubber grommet and pass trigger wires through grommet in floor into passenger compartment.
Posi-Tap™ instructions
Use Posi-Tap connectors to connect Power Step trigger wires to like colored
wires in the factory system as shown: Violet/White wire in loom coming from
front door, Violet/Yellow and Violet/Grey are not used tape off ends.
Note: For door removal attach posi tap on chassis side of door harness.
Remove driver side door sill and pull up carpet.
Route Violet wire under carpet to driver side door sill and connect to violet
wire coming from door as shown.
Note: For door removal attach posi tap on chassis side of door
harness.
Insert plug from wire harness onto motor. Slide rubber grommet on wire harness
into slot of motor cover. Insert motor cover onto motor. Slide motor assembly
onto drive shaft and mounting bosses of driving linkage assembly.
Use electrical tape to cover any exposed wire from the motor.
Insert plastic push pin rivets in mounting holes of motor cover. Use pliers to ease installation.
On each side of the vehicle install LED Lamps onto installed brackets
provided. 
Using supplied butt connectors, connect the lamp wires. Red to Red, Black to
Black. Once Crimped use heat gun to shrink tube. 
Check that all doors activate the Power Step and the LED Lights work when
doors open and close. Reinstall any remaining trim panels. 
FINAL SYSTEM CHECK
Check that all doors activate the PowerStep and the LED lights work when doors
open and close.
NORMAL OPERATION : When the doors open, PowerStep automatically deploys
from under the vehicle.
When the doors are closed, PowerStep will automatically return to the
stowed/retracted position. Note that there is a 2-second delay before the
PowerStep returns to the stowed/retracted position.
CORRECT OPERATION OF LIGHTS: All four lamps will illuminate upon opening any
door of vehicle. Lamps will stay on until restowing of both Power Steps or
until 5 minutes has expired with the doors open. When the lights timeout
after 5 minutes, they can be reillumintated by closing and opening any door of
vehicle.
Congratulations on your purchase of the genuine AMP Research
PowerStep! Here’s what you should know…
POWER-DEPLOYABLE RUNNING BOARDS OPERATION: AMP Research PowerStep running
boards automatically move when the doors are opened to assist entering and
exiting the vehicle.
Automatic power deploy:
The running boards will extend down and out when the doors are opened.
Automatic power stow:
The running boards will return to the stowed position when the doors are
closed. There will be a 2-second delay before the running boards move to the
stowed position.
Automatic stop:
If an object is in the way of the moving running board, the running board will
automatically stop.
To reset, clear any obstruction, then simply open and close the door to resume
normal operation.
Manually set in the deployed (OUT) position for access to the roof:
The running boards can be manually set in the deployed position by firmly
holding the step down with your foot while at the same time closing the door.
To resume normal operation, open and close the door.
Maintenance: In adverse conditions, debris such as mud, dirt, and salt
may become trapped in the running board mechanism, possibly leading to
unwanted noise. If this occurs, manually set the running boards to the
deployed position and flush the front and rear hinge arms with a high-
pressure car wash wand. Avoid spraying the motors directly. After washing,
apply silicone spray lubricant to the hinge pivot pins. Do not apply silicone,
wax or protectants like Armor All® to the running board stepping surface.
Caution! Keep hands away when the running board is in motion.
5-YEAR LIMITED WARRANTY
AMP RESEARCH warrants this product to be free from defects in material and
workmanship for FIVE (5) YEARS FROM DATE OF PURCHASE, provided there has been
normal use and proper maintenance. This warranty applies to the original
purchaser only. All remedies under this warranty are limited to the repair
replacement of the product itself, or the repair or replacement of any
component part thereof, found by the factory to be defective within the time
period specified. The decision to repair or replace is wholly within the
discretion of the manufacturer.
This warranty specifically excludes labor.
If you have a warranty claim, first you must call our factory at the number
below for instructions. You must retain proof of purchase and submit a copy
with any items returned for warranty work. Upon completion of warranty work,
if any, we will return the repaired or replaced item or items to you freight
prepaid. Damage to our products caused by accidents, fire, vandalism,
negligence, misinstallation, misuse, Acts of God, or by defective parts not
manufactured by us, is not covered under this warranty.
ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
PURPOSE CREATED HEREBY ARE LIMITED IN DURATION TO THE SAME DURATION AND SCOPE
AS THE EXPRESS WRITTEN WARRANTY. OUR COMPANY SHALL NOT BE LIABLE FOR ANY
INCIDENTAL OR CONSEQUENTIAL DAMAGE.
Some states do not allow limitations on how long an implied warranty lasts, or
the exclusion or limitation of incidental
or consequential damages, so the above limitations or exclusions may not apply
to you. This warranty gives you specific legal rights, and you may also have
other rights that vary from state to state.
FOR WARRANTY ISSUES WITH THIS PRODUCT PLEASE CALL AMP RESEARCH TECH SUPPORT
1-888-983-2204
WARNING
Be sure to read and precisely follow the provided instructions when installing
this product. Failure to do so could place the vehicle occupants in a
potentially dangerous situation. After installing or reinstalling, re-check to
insure that the product is properly installed.
APPLICATION AMP
Part # Jeep Wrangler (JK)
2007–2018 75121-01A
2-Door
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>