AMP 78121-01A Power Step Xtreme Black Jeep Wrangler Installation Guide
- June 13, 2024
- AMP
Table of Contents
AMP 78121-01A Power Step Xtreme Black Jeep Wrangler
Product Information
- Product Name: AMP Part #78121-01A
- Installation Time: 3-5 Hours
- Skill Level: 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 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
- Slide motor assembly (4) onto drive shaft and mounting bosses of driving linkage assembly. Use flathead socket head cap screw (14) on the inner location. Next, use hex bolt (19) on the outer location and tighten to 8 ft-lbs / 11Nm. Ensure motor faces to the front of the vehicle.
- Insert U nut into position for front Idler Linkage mounting position.
- Install Front Drive Linkage assembly. Use button head bolts with washers and Hex flange bolt. Torque to 16 ft-lbs. (22N m). Install light bracket between pinch weld and linkage mount as shown. Install brackets on forward holes of linkage.
- Insert U nut into position for rear Drive Linkage mounting position. Repeat linkage installation on the driver side.
- Install Rear Drive Linkage assembly. Use button head bolts with washers and Hex flange bolt. Torque to 16 ft-lbs. (22N m). Install light bracket on the front side of the 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 the rear of the step extrusion with the rear fender well.
- Tighten 4 socket cap screws with a 3/16 allen wrench. Remove the fuse from the Power Step wire harness. Torque to 10 ft-lbs. (13.5 N-m).
- Install the controller on the passenger side at the firewall. Secure with 11 cable ties. Connect the Red wire to the positive battery terminal and the Black wire to the negative battery terminal.
- Route the longest leg of the wire harness across the firewall to the driver side and under the vehicle outside of the frame rail. Route the shortest leg of the wire harness down the firewall and outside of the frame rail on the passenger side.
INSTALLATION GUIDE
APPLICATION AMP Part #
Jeep Wrangler Unlimited (JK) 2007–2018 2-Door 78121-01A
INSTALLATION TIME 3-5 Hours
Professional installation recommended
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 POWER STEP – JEEP WRANGLER (JK)
PARTS LIST AND HARDWARE IDENTIFICATION
- End cap left (x1)
- End cap right (x1)
- T-nut insert (x2)
- Socket cap screw (x2)
- Nut plate (x2)
AMP RESEARCH POWER STEP – JEEP WRANGLER (JK)
Slide motor assembly (4) onto drive shaft and mounting bosses of driving linkage assembly. Use flathead socket head cap screw (14) on the inner location. Next use hex bolt (19) on outer location and tighten to 8 ft-lbs / 11Nm.
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Motor faces to front of vehicle
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Insert U nut into position for front Idler Linkage mounting position.
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Repeat linkage installation on driver side
Install Front Drive Linkage assembly. Use button head bolts with washers and Hex flange bolt Torque to 16 ft-lbs. (22N m) -
Insert U nut into position for rear Drive Linkage mounting position.
-
Install Rear Drive Linkage assembly. Use but-ton head bolts with washers and Hex flange bolt Torque to 16 ft-lbs. (22N m). Install light bracket on front side of linkage as in step 4.
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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.
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Line up rear of step extrusion with rear fender well.
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Tighten 4 socket cap screws with 3/16” allen wrench. Torque to 10 ft-lbs. (13.5 N-m)
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Remove fuse from Power Step wire harness.
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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.
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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.
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Remove passenger side front door sill.
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Lift carpet. Slit rubber grommet and pass trigger wires through grommet in floor into passenger compartment.
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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.
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Remove driver side door sill and pull up carpet.
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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.
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Insert plug from wire harness onto motors. 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.
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Insert plastic push pin rivets in mounting holes of motor cover. Use pliers to ease installation.
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On each side of the vehicle install LED Lamps onto installed brackets provided.
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Using supplied butt connectors, connect the lamp wires. Red to Red, Black to Black. Once Crimped use heat gun to shrink tube.
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Check that all doors activate the Power Step and the LED Lights work when doors open and close. Reinstall any remaining trim panels.
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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.
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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.
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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.
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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
- 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
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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.
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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.
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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.
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