2005 Lincoln Navigator Power running boards

Tiny
JIMBOMUSTANG
  • MEMBER
  • 2005 LINCOLN NAVIGATOR
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 100,000 MILES
Need wiring schematic. And help to figure out way they don't work properly.
The drivers side:
When you open the door the board comes out but goes right back in.
Passenger side:
Nothing at all. Has power but nothing happens
Had them both apart cleaned and greased. Without the drive motors on they move
In and out with ease. So no binding.
I have taken the tops off the large worm gear and clean the plate that the magnet senses.
No difference.
Does the motor work by sensing the metal plate that moves or does it measure the amp load on the motor?
Or both? Help
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Monday, November 30th, 2015 AT 4:02 PM

1 Reply

Tiny
HMAC300
  • EXPERT
You have done all the manual checks to do on the power steps. However it has to be scanned for codes as it can be a communication problem between the modules there are two modules that deal with this and scanning may find the problem. The sensors are part of the motor assembly. You might check grounds on lh and rh kick panels and use dielectric grease at connectors at motors and see if that makes a difference otherwise scanning is the only way you'll know what is wrong and autoparts cannot do this. Any garage should be able to.
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Tuesday, December 1st, 2015 AT 5:58 AM

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