AMP RESEARCH 78255-01A Running Board Assembly Installation Guide

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.

References

• AMP Research Accessories | RealTruck
• RealTruck Warranty Registration | RealTruck

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>