AMP Research PowerStep 75124-01 User manual

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INSTALLATION GUIDE
APPLICATION MODEL YR PART #
Chevy Tahoe / GMC Yukon / Cadillac Escalade 2007 - up 75124-01
Chevy Suburban / GMC Yukon XL / Escalade ESV 2007 - up 75125-01
Chevy Avalanche / Escalade EXT 2007 - up 75125-01
TOOLS REQUIRED
q Safety goggles
q Measuring tape
q Flat blade screwdriver
q Phillips head screwdriver
q Right angle drill
q 9/32” drill bit
q 13 mm socket
q 10 mm socket
q 7 mm socket
q Ratchet wrench and extension
q 13mm end wrench
q Wire stripper / cutter
q Pliers
q Corrosion inhibiter
q
3/16” hex key wrench (allen wrench)
q 5mm hex key wrench (allen wrench)
q Electrical tape
q
Weather proof caulking (silicone
sealer)
INSTALLATION TIME
12 3 4
SKILL LEVEL
4= Experienced
3:00 hrs
AMP RESEARCH TECH SUPPORT 1-888-983-2204 (Press 2) Monday - Friday, 6:00 AM - 5:00 PM PST
Designed and manufactured by AMP Research®. Patent Number 6,830,257; 6,641,158; 6,834,875; 6,938,909; 6,942,233; 7,007,961; 7,055,839; 7,163,221;
7,367,574; 7,380,807; 7,398,985; 7,413,204; 7,487,986. Other US and Worldwide patents pending. Made in USA © 2010 AMP Research
5-year limited warranty. Professional installation is recommended.

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
1x2
Running board assembly
2x2
10-03273-10
Idler linkage assembly
3x2
10-03272-10
Motor linkage assembly
4
19-03348-90
Wire harness
5
19-03297-93
Controller
6
PARTS LIST AND HARDWARE IDENTIFICATION
789
19-02721-90
Cinch Fastener
D
B
(A) 19-03225-11 End cap left (x1)
(B) 19-03225-12 End cap right (x1)
(C) 19-02663-90 T-nut insert (x2)
(D) 19-03236-90 Socket cap screw (x2)
(E) 19-03237-90 Nut plate (x2)
x2 x2
A
CE
19-03403-90
Rubber Tape
19-03289-90
Motor
19-03238-90
Motor Cover
x6

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
10 x4 11 x4 12 x4
13 x4
10-00115-60
Nylock Nut
14 x4
16-02634-90
Button Head Bolt
19-02805-90
Cable tie (7”)
15 x25
19-02802-90
Socket Cap Screw
16 x8
19-02992-90
Tubing (Installation To ol)
19
19-02640-90
Grommet
PARTS LIST AND
HARDWARE
IDENTIFICATION
20
19-03354-90
Posi-Tap™
17
19-03339-90
Cable tie (11”)
18 x2
x4
19-02849-90
Hex Bolt 19-03326-90
Hex Bolt
19-02389-90
Washer

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WIRING GUIDE
WIRING GUIDE / General Instructions
Posi-Tap™ installation instructions
Designed and manufactured by AMP Research. Patent 6,830,257 / 6,641,158 / 6,834,875 / 6,938,909 / 6,942,233 / 7,007,961 Other US and worldwide
patents pending. 5-year limited warranty. Professional installation is recommended.
CAUTION
qHandle the motor and linkage assemblies with care when installing. Dropping can damage
motor.
qRemove fuse from wiring harness during installation. Falure to do so could result in
severe electrical shock.
1. Insert 2. Tighten 3. Strip 3/8”
4. Insert & Tighten For two or more
wires twist.
Posi-Tap™ Patents:
5,228,875; 5,695,369;
5,868,589, 2,708.
Other patents pending
AMP RESEARCH TECH SUPPORT 1-888-983-2204 (Press 2) Monday - Friday, 6:00 AM - 5:00 PM PST

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
Bolt idler linkage assembly to rearmost
mounting tab using an M8 nut and washer
(some vehicles may require a M8 x 35 bolt)
and a M8x16 Button Head Screw.
Bolt driving linkage assembly to forward
most mounting tab using an M8 nut and
washer (some vehicles may require a M8 x
35 bolt) and a M8x16 Button Head Screw.
Slide mounting T-nut into position. Mount board
and tighten fasteners to 10 ft-lbs. Align the end
of the board with the rear edge of the back door.
Tighten button head fasteners and M8 nuts on
driving and idler linkages to 16 ft-lbs.
On some vehicles the emergency cable bracket
may come in contact with linkage arm. If so,
wrap supplied rubber tape around bracket.
Using the two 11” cable ties, mount controller
to support arm next to battery
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 en-
gaged with nut.
Attach ground lead to negative battery pole.
12
1113
14
2
12
11 13
14
3
1
2
16
8
18
45
4
1
3 4
56
2

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
4
Driver side shown
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.
Secure with zip ties.
Route wire harness along the frame. Secure
with zip ties.
Poke hole through rubber grommet near front
door on underside of floor panel with small
phillips screwdriver. Push both wires through
hole.
(See Step 11 for passenger side notes.)
Plug wire
harness into
motors.
Pop off the threshold cover with screwdriver and
remove the kick panel. The panel will slide out
from under the seat after fasteners give way.
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).
Seal holes
with silicon glue.
Locate wire loom in door sill. Carefully remove
wire wrap and find the trigger wire.
Drivers side: LIGHT BLUE wire with BLACK
STRIPE
Passenger side: GREEN wire with BLACK
STRIPE. (Locate wire rearward of junction
shown in step 13)
4
4
2
4
7
910
11 12
8
4

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
Remove plastic trim on door near
mirror attachment.
Carefully pry up window/ door lock switch plate Remove all plugs from switchplate
To remove door panel, first pry off door lock
and plastic covers by handle and door latch.
Remove the 3 door bolts and then remove
door panel by pring loose all panel fasteners.
remove bolts
Remove door latch cable from door panel
Using Supplied Posi-Tap™ connector, splice
shorter trigger wire into wire found in Step12.
4
19
17
15 16
13 14
18

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
Pull back the door weather guard, unbolt
speaker and unplug. Thread plastic tube
through accordion.
Feed longer wire of Step 11 through tube into
door and pull out plastic tube on door side.
Route wire along harness to switchplate.
Locate the brown plug and using supplied
Posi-Tap™ connector, splice into trigger wire.
2007-2008 Vehicles:
Drivers side: TAN wire- pin #11
Passengers side: LIGHT GREEN wire-pin#11
2009 Vehicles:
Drivers side: Gry/Blk wire- pin #13
Passenger side: Ta n/Wht wire- pin # 13
Insert plug from wire harness onto motor.
Slide rubber grommet on wire harness into slot
of motor cover. Insert motor cover onto motor.
Insert plastic push pin rivets in mounting holes
of motor cover. Use pliers to ease installation.
17 17
4
4
6
4
4
677
9
19 20
22
23 24
21
Brown plug
19
4

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AMP RESEARCH POWER STEP – GMC / CHEVROLET
Slide motor assembly onto drive shaft and
mounting bosses of driving linkage assembly.
Use two M8x20 bolts to bolt motor down. Use
electrical tape to cover any exposed wire from
the motor.
Replace power fuse.
Check for proper operation by
opening and closing all doors.
10
4
25 26
27