AMP Research 75126-01A Running Board Assembly Installation Guide
- June 13, 2024
- AMP RESEARCH
Table of Contents
Power Step
Research 75126-01A Running Board Assembly
Installation Guide
| APPLICATION | AMP Part | |
|---|---|---|
| Chevrolet Silverado 2500/3500 / GMC Sierra 2500/3500 – Ext. Cab | 2007 – 2014 |
75126-01A
Chevrolet Silverado 2500/3500 / GMC Sierra 2500/3500 – Crew Cab| 2007 – 2014|
75126-01A
Chevrolet Silverado 1500 / GMC Sierra 1500 – Ext. Cab*| 2007 – 2013|
75126-01A
Chevrolet Silverado 1500 / GMC Sierra 1500 – Crew Cab| 2007 – 2013| 75126-01A
Chevrolet Silverado 1500 / GMC Sierra 1500 – Hybrid| 2009 – 2013| 75126-01A
(Excludes all 2011-up models with Diesel engine.)
* Modification required to running board assembly. See Item 1 on page 3.
INSTALLATION TIME
3-5 Hours
Professional installation recommended
SKILL LEVEL
1 2 3 4
4= Experienced
TOOLS REQUIRED
- Safety goggles
- Measuring tape
- Flat blade screwdriver
- Power Drill
- 9/32” drill bit
- 13 mm socket
- 10 mm socket
- Ratchet wrench and extension
- 13mm end wrench
- Wire crimpers
- Wire stripper / cutter
- 3/16” hex key wrench (allen wrench)
- 5mm hex key wrench (allen wrench)
- 4mm hex key wrench (allen wrench)
- Electrical tape
- Weather proof caulking (silicone sealer)
- Silicone spray
WARRANTY
5-Year Limited Warranty
AMP RESEARCH TECH SUPPORT
1-888-983-2204 (Press 2) Monday –
Friday, 7:00 AM – 5:00 PM PST
Invented, engineered and manufactured exclusively by AMP Research in the USA.
May be covered by one OR MORE of the following patents:
6,641,158; 6,830,257; 6,834,875; 6,938,909; 7,055,839; 7,380,807; 7,413,204;
7,398,985; 7,584,975; 7,566,064; 7,487,986; 8,157,277;
8,408,571; 9,302,626; 9,561,751; 10,053,017; CA2463717 ©2023 AMP Research. All
rights reserved. Printed in USA.
AMP RESEARCH POWERSTEP TM – CHEVROLET / GMC
INSTALLATION GUIDE
Attaching motor to Linkage assembly
The motors must be attached to the Linkage assemblies before continuing the
installation process.
EXPLODED VIEW
- Motor
- Gear Cover
- Socket cap screw
- Washer
CAUTION: HANDLE WITH CARE.
To ensure our customers receive all components with full integrity, we pack
the motors separate from their Linkage assemblies. This requires that the
installer position and fasten the motor before continuing with the install.
Please follow the instructions below and handle the assembly carefully.
CAUTION: Dropping the assembly or any excessive impact MAY cause damage to the
motor.
Instructions:
- Position the gear cover in place as shown if not already in place.
- Seat motor into position on the three mounting bosses. This may require an adjustment of the gear by moving the swing arms.
- After seating into place, fasten the motor with the three motor mount screws with 4mm Hex Head. Tighten screws to 36 in-lbs (4N-m). Do not over torque.
AMP RESEARCH POWERSTEP TM – CHEVROLET / GMC
Steps 2-3 for 2007-2010 HD 2500 and 3500 only! For all other vehicles skip to
Step 4.
Short Bed: Step 2 only
Long Bed: Steps 2 and 3.
Remove forward most parking brake cable guide and replace with new guide (7).
Note: Factory bracket will need to be bent or cut to remove from cable.
On some models that do not utilize this guide rubber tape (8) is included. Wrap tape around bracket.
Install plastic brake cable ring (9) in rear of middle body mount. Install new
parking brake cable guide (22) in existing frame hole as shown.
Front Idler Linkage: Thread supplied bolt (10) in about half way into the
first Sheetmetal tab / hole from front. Set linkage over bolt and Tighten
lower bolt (10) to 16ft-lbs (22N m). Finger tighten nut (12) onto bolt (10).
Install bolt (13) and torque to 16 ft-lb (22N m). Next torque lower nut (12)
to 16 ft-lb (22N m) using wrench to hold lower bolt in place. 
Rear Drive Linkage: Install driver side Motor Linkage in fourth Sheetmetal tab
/ hole from front. Linkage will then clear parking brake cable.
Set linkage into second to last Sheetmetal tab / hole from rear. Use supplied
bolt (10) and nut(12) to hold in position. Install bolt (13) into upper
mounting hole and snug both bolts. Torque upper bolt (13) to 16ft-lbs(22N m)
first and then torque lower bolt (10) and nut (12) to 16 ft-lb (22N m).
Repeat linkage installation on Passenger side.
Slide mounting T-nut into position, aligning the end of the board with the
rear edge of the back door. Mount board and tighten fasteners to 10 ft-lbs.
Insure linkages are squared to body prior to torqueing fasteners. 
Using the two 11” cable ties, mount controller to support arm
next to battery. (Behind support arm on diesel engine) On Hybrid models:
Mount controller on driver’s side of engine compartment.
Plug in wire harness. (Ensure that locking tabs engage.)
Remove power fuse. Attach power lead (RED wire) to positive pole on the
battery.
CAUTION: Do not ground wrench when engaged with nut.
Attach ground lead to negative battery pole.
GAS ENGINE WIRE ROUTING
Route long end of wire harness above engine and down through drivers side
wheel well. Zip tie harness to cowling clips on fire wall. Route short end
down passengers side. On Hybrid models: Long end of wires will be routed down
through passenger side wheel well and short end down drivers side.
DIESEL ENGINE WIRE ROUTING
Route long end of wire harness under intake and along factory engine harness
to driver side wheel well. Route short end down passenger’s side. 
Secure with zip ties.
IMPORTANT: Steps 14 and 15 are for Crew Cab trucks only.
(Light Blue and Green wires are only used with Crew Cab trucks.)
Route wire harness along the frame and back towards rear linkage. Secure with
zip ties. Poke hole through rubber grommet near front door on underside of
floor panel with small Philips screwdriver. Push both wires through hole. (See
Step14 for passenger’s side notes.)
Pop off the threshold cover with
screwdriver and remove the kick panel. Repeat step on passenger side. 
Pull up the carpet and thread both wires through the floor panel (same steps
on passenger side EXCEPT drill 9/32” hole in metal and add rubber grommet).
For all vehicles except Crew Cabs skip to step 18.
Seal holes with silicone glue and cover with tape so carpet does not stick to
glue.
Crew Cab Only – Carefully remove wire wrap on driver side and find LIGHT BLUE
wire with BLACK STRIPE. On passenger side find GREEN wire with BLACK STRIPE.
The wire is located rear of the “T” junction where wires cross under the
front seat. 
Crew Cab Only. Using supplied Posi-Tap™ connector, splice shorter trigger
wire into wire found in Step 16. Otherwise tape off short wire. 
Posi-Tap™ instructions
For model years 2007-2010 locate and inspect the Body Control Module above the
brake pedal under the dashboard. The BCM is the only module with a pink
connector. Check to see if the front door ajar signal wires are present in the
pink connector: Grey/ Black, Tan/White. If you do not see these wires the
front door panels must be removed. 
Vehicles that do not
have the front door ajar signal wires in the pink connector of the BCM must
have the front door panels removed in order to access the front door ajar
signal wires. For these and all Hybrid models go to step 20.
Remove driver side kick panel and open the loom wrapped in grey or black tape
to access the Grey / Black stripe wire. In the passenger side kick panel the
loom wrapped in green or black tape will have a Tan / White stripe wire.
Connect Power Step Grey / Black and Tan / White wires to like colored factory
wires. Go to step 27
Remove plastic trim on door near mirror attachment. Then carefully pry up window/ door lock switch plate.
Remove all plugs from switchplate
To remove door panel, first pry back tab on door lock to remove then pry off
plastic covers by handle and door latch. Remove the 3 door bolts and then
remove door panel by prying loose all panel fasteners.
Remove door latch cable from door panel.
Pull back the door weather guard, unbolt speaker and unplug. Thread plastic
tube through accordion.
Feed longer wire of Step 13 through tube into door and pull out plastic tube
on door side. Route wire along harness to switchplate.
For 2007-2009 Models:
Locate the brown plug in doors and using supplied Posi-Tap™ connector, splice
into trigger wire.
Driver’s side: Grey / Black wire Passenger’s side: Tan / White wire
Note: On Hybrid models trigger wire colors will not match up because wire
harness is flipped.
Reassemble door and replace plugs. Plugs must be replaced for Power Step to
operate.
For 2010-Current models:
Locate loom that runs across the top of the door panel. Carefully remove wire
wrap and locate the following wires on either side. Driver’s side: Grey/ Black
wire Passenger’s side: Tan / White wire Caution: Zip tie trigger wires to
avoid being hung up in window linkage.
Note: On Hybrid models trigger wire
colors will not match up because wire harness is flipped.
On each side of the vehicle measure from the front edge of door line on the
pinch weld to the specified lengths below. Measure at 22” for front LED Light
and 65” for rear LED Light. 
Affix lamp to rocker panel surface.
Make sure the lamp is affixed to a clean, flat surface. There is a step down
midway across the surface. Affix lamp just outside of step down.
‘Using supplied butt connectors, connect the lamp wires. Red to
Red, Black to Black. Once Crimped use heat gun to shrink tube. Close and wrap
conduit with electrical tape. Secure all loose wires with cable ties. Pull
lamp wires upward to avoid any wire snagging.
Reinstall fuse. 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 Power Step and the LED lights work when
doors open and close.
NORMAL OPERATION: When the doors open, Power Step automatically deploys
from under the vehicle.
When the doors are closed, Power Step will automatically return to the
stowed/retracted position. Note that there is a 2-second delay before the
Power Step 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 restoring 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.
AMERICAN DESIGNED, ENGINEERED AND MANUFACTURED.
Thank you for your recent AMP Research Purchase.
REGISTER YOUR PRODUCT TODAY FOR FASTER SERVICE & PRODUCT UPDATES
Please visit:www.amp-research.com/productregistration or scan the QR Code
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To view other Amp Research products that may be offered for your vehicle.
Please visit: www.amp-research.com
Congratulations on your purchase of the genuine AMP Research Power Step!
Here’s what you should know…
POWER-DEPLOYABLE RUNNING BOARDS OPERATION: AMP Research Power Step
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.
The material that your product is made from can be recycled. Please also
consider recycling the packaging that your product came in.
www.amp-research.com
IM75126 rev 04.18.23
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>