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Old 02-22-2012, 06:33 PM   #1
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Adjustable brake pedal

I have an 05 40'fdts so I assume I have the adjustable brake pedal. Since I don't have the manual, I have no idea how to adjust it. Perhaps the switch controlling it is not working? I have a hard brake pressure issue and saw on many posts that adjusting the pedal to the outermost position would help.Thanks and please excuse what I think is a not very bright question.

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Old 02-22-2012, 06:45 PM   #2
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I have the power pedals in my motor home, it is controlled by a small rocker switch. I also have them in our Yukon XL, these can only be adjusted while in "Park" for some reason.

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Old 02-22-2012, 07:35 PM   #3
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Sounds like you've found the Pedal Adjust Switch, a rocker switch on the left hand 'arm rest' area by driver. Rocker forward should motor the pedals (both) toward the fire wall, rocking back should push the pedals out toward you. On an 05 this rocker might be on the dash.

If you press the switch back & forth w/no response in pedals, your have ESP (error some place). You'll need to diagnose the problem. According to the Vansco schematics I have for 05, 12V power for this circuit comes from the PDM module pinout covered by #11 output LED (i.e. LED 11 Output should light w/the Key On and there should be 12V to the switch to power the pedal adjust motor. If no 12V to switch, no go; if switch is bad, no go, if ground connection is bad, no go; if motor dies, no go. Need to check these things. I'd start w/checking #11 LED on upper Vansco module behind the plastic kick panel ahead of passenger's seat. If that's lit, check to see there is 12V to the switch (probably a center pin on back of rocker). If that's good, see if you have 12V out of switch in either direction (should have in both). If that's good, then bad ground or motor no workee.
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Old 02-22-2012, 11:53 PM   #4
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Another thing it could be wiring lose, or miswired too. My engine brake and battery boost wiring connectors were reversed, so that is something to check as well.
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