AMP RESEARCH 78255-01A Running Board Assembly Installation Guide
- June 13, 2024
- AMP RESEARCH
Table of Contents
78255-01A Running Board Assembly
Product Information: – Application: Chevrolet Silverado
1500/ GMC Sierra 1500 – All Cabs – Model Year: 2022 – 2023 – Part
Number: 78255-01A – Installation Time: 3-5 Hours – Skill Level: 4
(Experienced) – Tools Required: Safety goggles, Measuring tape,
1/8, 19/64 Drill bits, 10 mm socket, 13 mm socket, 13 mm ratchet
wrench, Ratchet wrench and extension, Wire crimpers, Wire stripper
/ cutter, 3/16 hex key wrench (allen wrench), 4mm allen wrench,
Electrical tape, Weatherproof caulking (silicone sealer), Drill
Motor, Heat Gun – Warranty: 5-Year Limited Warranty – AMP RESEARCH
TECH SUPPORT: 1-888-983-2204 (Press 2)
Monday – Friday, 7:00 AM –
5:00 PM PST – Website: www.amp-research.com Product Usage
Instructions: 1. Attaching motor to Linkage assembly: a.
Position the gear cover in place if not already in place. b. Seat
the motor into position on the three mounting bosses. Adjust the
gear by moving the swing arms if necessary. c. Fasten the motor
with the three motor mount screws using a 4mm Hex Head. Tighten the
screws to 36 in-lbs (4N-m). Do not over torque. 2. Installing
Linkages (Driver Side): a. Front Linkage (Motor Linkage B): –
Install motor linkage B in the first mount position at the front of
the truck on the Driver side. – Remove any plastic or rubber hole
plugs next to the linkage mounts. – Torque the fasteners to 16
ft-lbs. (22 N m). b. Rear Linkage (Motor Linkage A): – Assemble the
motor to the linkage as shown in the picture on page 2. – Position
the motor so that the linkage is in the mid-extension position to
allow for the installation of the lower bolt. Note: Some
applications may require modification. Please refer to the specific
instructions provided for your application. For further assistance,
please contact AMP RESEARCH TECH SUPPORT at the provided phone
number or visit their website.
INSTALLATION GUIDE
®
APPLICATION Chevrolet Silverado 1500/ GMC Sierra 1500 – All Cabs
- Modification required to running board assembly. See Item 1 on page 3.
MODEL YR 2022 – 2023
TM
PART #
78255-01A
INSTALLATION TIME
3-5 Hours
Professional installation recommended
SKILL LEVEL
123 4
4= Experienced
TOOLS REQUIRED
q Safety goggles q Measuring tape q 1/8″, 19/64″ Drill bits q 10 mm socket q
13 mm socket q 13 mm ratchet wrench q Ratchet wrench and extension q Wire
crimpers q Wire stripper / cutter q 3/16″ hex key wrench (allen wrench) q 4mm
allen wrench q Electrical tape q Weather proof caulking (silicone sealer) q
Drill Motor q Heat Gun
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 ©2012 AMP Research. All rights reserved. Printed in USA.
www.amp-research.com
1/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
INSTALLATION GUIDE Attaching motor to Linkage assembly
The motors must be attached to the front Linkages before installation. The
Drivers side motor mounts on the opposite side of the linkage as the Passenger
side motor does.
EXPLODED VIEW · Motor · Socket cap screws · Washers · Motor Linkage assembly
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:
1. Position the gear cover in place as shown if not already in place.
2. Seat motor into position on the three mounting bosses. This may require an
adjustment of the gear by moving the swing arms.
3. 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.
www.amp-research.com
2/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Note: Some Applications require modification.
Application
Cut Length
Crew Cab
79″ (No Modification Required)
Double Cab
69″ (Trim 10″)
PARTS LIST AND HARDWARE IDENTIFICATION
1 x2
Running Board assembly
– End caps (1 left & 1 right) – T-Nut Insert (x2) – S-style clips (x2)
2
Motor linkage A
3 x2
Motor linkage B
4
Wire Harness
www.amp-research.com
5
Controller XTA
3/14
6
OBD II Plug
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
7 x4
Motor
8 x4
Motor Cover
9 x4
LED Lamp
10 x8
Socket Cap Screw
11 x2
Posi-LockTM Connector
12 x8
Conical Washer Bolt
13 x20
Cable Tie 7″
14 x2
Cable Tie 11″
15 x8
Butt Connector
16 x4
Grommet
www.amp-research.com
4/14
17
Nut
18 x2
Posi-TapTM (Red/Grey)
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Installing Linkages (Driver Side) Front Linkage (Motor Linkage B)
Install motor linkage B in the the First mount position at the front of the truck on the Driver side, using the bolts supplied (12). All plastic or rubber hole plugs need to be removed that are next to the linkage mounts. Torque fasteners to 16 ft-lbs. (22 N m).
Front of vehicle Driver side shown
1
Rear Linkage (Motor Linkage A)
Assemble the motor to the linkage like the picture before installation shown on page 2. Position the motor so the linkage is in the mid extension position. This way the lower bolt can still be installed.
Front of vehicle Driver side shown
16″
33″
Assemble the motor to the linkage like the picture before installation shown
on page 2. Position the motor so the linkage is in the mid extension position.
This way the lower bolt can still be installed.
Install motor linkage A with provided Conical washer bolts (12) in the second
to last set of holes. Approx 16″ from rear of cab. Note: On some models these
holes are not present. If so use next set of holes forward. Approx 33″ from
rear or cab. Keep the linkage held up to the angled surface and the vertical
surface. Some structural adhesive remnants may need to be chipped off at the
rocker seam. Torque fasteners to 16 ft-lbs. (22 N m).
2
www.amp-research.com
5/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Installing Linkages (Passenger Side) Front Linkage (Motor Linkage A)
Install motor linkage A in the the First mount position at the front of the truck on the Passenger side, using the bolts supplied (12). All plastic or rubber hole plugs need to be removed that are next to the linkage mounts. Torque fasteners to 16 ft-lbs. (22 N m).
Front of vehicle
3
Passenger side shown
Rear Linkage (Motor Linkage B)
Front of vehicle Passenger side shown
Assemble the motor to the linkage like the picture before installation. Position the motor so the linkage is in the mid extension position. This way the lower bolt can still be installed.
Install motor linkage B with the Conical Washer Bolts (12) in the second to
last set of holes on the Crew Cab. Keep the linkage held up to the angled
surface and the vertical surface. If any seam sealer is present clean surface
so any proud edges are knocked off and mounting surface is flat.
24 Torque fasteners to 16 ft-lbs. (22 N m).
www.amp-research.com
6/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Installing Step Extrusion
Slide the front mounting T-nut into position, place the board(1) about 5 to 6
inches from the front edge of the front door. Use fasteners (10) to attach
boards, finger tighten only. Align the rear T-nut and bolt it to the rear
linkage. Then tighten all 4 fasteners to 10 ft-lbs.
Front of vehicle Driver side shown
2
1
10
5-6″
5
Torque to 10 ft.lbs.
Remove the fuse from the Powerstep wire harness.
- 4
6
www.amp-research.com
7/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Remove Negative terminal on battery to prevent a CEL when removing Connectors
under dash in step 13. A loss of communication code may appear if battery is
not disconected.
Attach wire harness to controller and ensure locking tabs engage. Remove the
cover on the battery top box and connect the Black wire to the battery
terminal accessory stud. Connect the Red wire to the stud on the positive
power battery cable terminal.Secure controller with supplied 11″ cable Ties
(14) .
Negative battery accessory stud, install under factory nut.
Positive terminal accessory stud to attach red wire with Nut (17).
7
Route the long wire harness leg across the truck under the edge of the cowl
(zip tied thru the push rivet slots on the bottom), and then down to the
outside of the frame away from the exhaust and steering, cable tie (13) it in
place. The other leg shall go down immediately away from the exhaust and to
the frame area. Cable tie as needed. Note: On dual battery vehicles and Diesel
models Passenger side battery is still required.
Controller
Cowl Edge
8
www.amp-research.com
8/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Remove the driver side door sill trim and and kick panel carefully. Pull up
the carpet, and poke a small screwdriver through the rubber insulation
material.
9
Route the two trigger wires towards
the rear of the vehicle above the body
54
mounts, and up through the hole made in the rubber grommet in the previous step.
Secure harness with supplied cable ties.
NOTE: Seal holes with silicone glue and cover with tape so carpet does not stick to glue.
On the Driver side, Do Not Ziptie the Wire Harness to the Brake Lines.
10
www.amp-research.com
9/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
In driver side kick panel area, locate bank of 8 plugs. Locate the light grey
connector and the light green connector.
a. On light grey connector, locate the Light Green/Grey stripe wire located in
pin location 29. Use supplied Posi-tapTM (18) and connect the blue wire from
the OBD module.
Light Grey Connector
Front side of Connector
18
29
29
b. On light green connector, locate the Green/Yellow stripe wire located in pin location 19. Use supplied Posi-tapTM (18) connector and connect the white wire from the OBD module.
See next step for Posi-lockTM (11) install instructions.
18
Light Green Connector
Front side of Connector
19
19
11
11
www.amp-research.com
10/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
OBD II install: Use Supplied Posi-LockTM connectors to attach the Plug and
Play Module to the Harness. Attach matching colors on the harness to the wires
on the module. Plug in module to OBD II port on the vehicle. Secure harness
with supplied tie wraps. Note: If the OBD II pass thru
harness (76405-01A) was purchased see install sheet supplied in packaging. The
pass through harness allows for an open port for other accessories. See below
for a brief description.
13
To Powerstep Motors
To Vehicle Power (12V)
Powerstep Control Module
Vehicle Port
Powerstep Connection Module
Direct to Port Option
To Vehicle Power (12V)
To Powerstep Motors
Powerstep Connection Module
Powerstep Control Module
Vehicle Port
Pass-Through Harness Option
(Sold seperately)
Vehicle Port Pass-Through Harness (pin-topin at each terminal)
New Vehicle Port (replaces original port)
12
www.amp-research.com
11/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
On each side of the vehicle mark the center of each door on the pinch weld and
marlk for drilling for the light wires in the next step. Make sure there is a
clear path to the back of the pinchweld for the wire to enter.
Front of vehicle Driver side shown
13
14
www.amp-research.com
Center punch and drill a 1/8″ pilot hole then drill a 19/64″ hole through the
pinch weld at marked locations. Deburr all holes. After drilling apply paint
to holes to prevent rusting.
Note: Recommend using a step drill to enlarge holes.
12/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
Insert grommet (16) into drilled holes. Insert lamp (9) wires through the
grommets. (Silicon lube will help wires slip through grommets)
15
Affix lamp to rocker panel surface. Make sure lamp is affixed to a flat, clean
surface.
16
17
18
www.amp-research.com
Using supplied butt connectors (15), connect the lamp wires. Red to Red, Black to Black. Once Crimped use heat gun to shrink tube.
Close and wrap with conduit and electrical tape. Secure all loose wires with cable ties, with lamp wires pulled upward to avoid any wire snagging.
13/14
IM78255 rev 11.14.22
AMP RESEARCH POWERSTEPTM CHEVROLET / GMC
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.
Reinstall fuse.
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.
1298
www.amp-research.com
14/14
IM78255 rev 11.14.22
TM
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
Product Registration Benefits:
· Ensure we have your purchase receipt and product info in our system which is
required for warranty
· Faster and easier access to customer service and tech support in the
unlikely event you need warranty or product support
· Registration helps us keep you up to date on product information and offers
To view other Amp Research products that may be offered for your vehicle.
Please visit: www.amp-research.com
Rev 01.05.21
TM
Congratulations on your purchase of the
genuine AMP Research PowerStep!
Here’s what you should know…
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:
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
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.
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.