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PowerBoard – Installation Instructions

Rev. K 1011

75134 pg. 7

Open the doors to make sure that the PowerBoard 
drops into position on each side of the vehicle.

Cycle boards several times and then fully tighten 
all bolts.

Reinstall any remaining trim panels.

Issue:

• Possible cause 

Boards do not operate:

•  Connected to incorrect vehicle wire
•  Wire connections not secure
• Fuse burned
•  Factory door-ajar circuit inoperable

Board creaks or squeaks during operation:

•  Gear shaft wedge bolt is loose
•  Loosen mounting bracket and board 

attachment screws. Adjust linkages so they 
are parallel to each other and the noise is 
gone. Tighten all fasteners.

Intermittent operation:

•  Wire connections not secure
• Bad ground
•  Bad battery connection

Boards operate randomly:

•  Wire connections not secure
•  Connected to incorrect vehicle wire

Board stays down all the time and can be moved 
by hand:

•  Gear shaft wedge screw is missing or loose

Board shakes and or shutters during operation:

• Bad ground
•  Wire connections not secure
•  Bad battery connection

One or more doors operate the board and other 
do not:

•  Wire connections not secure

PowerBoard Troubleshooting

Confirming PowerBoard is functional-black 
controller:

To test if the red controller (473.11), wire harness, 
motor and lights work, hook up to battery and touch 
any of the 4 door trigger wires to + 12V. The board for 
that side should go down and the lights should turn 
on. The board should go up and the lights should turn 
off when the wire is removed from + 12V.

Boards don’t operate correctly when connected 
to wires identified in instructions:

Unfortunately vehicle manufactures  do  not consistently 
keep the same wire colors in their wire harnesses.  The 
PowerBoard trigger wires need to be connected the 
factory door-ajar wire that is connected to each door 
latch switch. The correct wire is likely in the same 
bundle that is identified in the instructions. If none of 
them work you can locate the correct wire by removing 
the door panel and tracing the wire bundle that leads 
to the door latch.

Use a volt  meter or test light to find the door-ajar wire on 
PowerBoards with red controllers. The correct wire will 
go from ground to +12 volts  when the door is opened 
and return to ground when the door is shut. Connect 
one test lead to the negative battery terminal and probe 
the wires with the other  lead. You can use a pin or a 
Posi-Tap connector to pierce the wire insulation. The 
correct wire will make the tester  go from no voltage to 
positive voltage when the door is opened and return 
to no voltage when the door is shut. You can also shut 
the door latch with the door open by pushing on the 
latch catch with a screw driver.

PowerBoard Service Tips

Test Doors and PowerBoards

Summary of Contents for PowerBoard 75134-15

Page 1: ...pplication Automatic Retracting Running Board 8 mm 13 mm 13 mm 7 32 and 5 mm www bestop com We re here to help Visit our web site and click on Ask a Question Click here for more Truck Accessories by B...

Page 2: ...ge Part Number 473 08 Qty 2 Controller Part Number 473 11 Qty 1 11 Cable Ties Part Number 470 02 Qty 2 M6 1 0 x 30 Socket Cap Screw Part Num ber 460 95 Qty 6 M10 1 75 x 25 Socket Cap Screw Part Number...

Page 3: ...Nut on each side of each hole Do not tighten the bolts at this time View from under vehicle Front Rear Driver s Side M8 U Nuts 8mm Washers M8 1 25 x 40 Hex Bolts Idler Linkage Position Motor Linkage P...

Page 4: ...Harness down and along under the vehicle Use Cable Ties to secure it Run the trugger wires on the passenger side through the grommet as shown Controller Connect the Controller power and ground to bat...

Page 5: ...re found just below flat loom as shown Rear Passenger Side Yellow The correct yellow wire goes to the back door Pull up on the yellow wire that lieads to the back and does not cross over to the driver...

Page 6: ...tor with the black and orange wires in the wire harness Repeat with the other three lights Secure lose wires with Cable Ties Install Lights Motor Linkage Motor Wire Harness Light Linkage M6 1 0 x 30mm...

Page 7: ...d lights work hook up to battery and touch any of the 4 door trigger wires to 12V The board for that side should go down and the lights should turn on The board should go up and the lights should turn...

Page 8: ...s not covered under this warranty THE WARRANTY TIME PERIOD IS AS FOLLOWS FOR ALL PowerBoards MANUFACTURED BY OUR COMPANY THREE YEARS 36 000 MILES FROM DATE OF PURCHASE ANY IMPLIED WARRANTIES OF MERCHA...

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