2008 Ford F150 5.4 Triton V8 VSM Issue? - Diesel Forum - TheDieselStop.com
2008- 2010 Gas Engines Discussion of the gas engines available in the 2008- 2010 Super Duty trucks

 
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post #1 of 1 (permalink) Old 02-25-2017, 08:16 PM Thread Starter
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Talking 2008 Ford F150 5.4 Triton V8 VSM Issue?

Hi, and good evening or good morning witch ever

I have a problem and let me start off by I read the sticky threads and I know the rules but If this is posted in the wrong area I'm sorry in advance mods, just move it if you feel it needs to be.

Okay! now the question, I bought this truck from a reputable car lot and love the truck so far it's nice and big and very little is wrong with it except a couple things and that's the auto light feature don't work when the switch is turned on to auto and yes I tried doing this at night to get it to work and it would not.

I checked the resistance across pin 1 and pin 6 and I'm getting a connection so the switch is not bad but with the key on or in running I am not getting no voltages from the VSM from the output of the relay to the headlamps but I can't figure out if my parking lights are ran in to this same relay? because there not on and when I pull the switch out for the fog lamps they don't come on, also none of the dash lights come on.

I am thinking the VSM is to blame because the keypad don't work with the factory code that I had to pull off the VSM sticker, the button pad light up but after the code is in nothing happens but a lit up keypad and a dome light.

Now I do have DRL and they remain on at all times and the truck was imported from Canada Yippie! so I have found all kinds of money coins from Canada..... Its cool! never seen Canada Money before

It does have a remote start and a GPS wired in to it to track the truck on my phone in case it gets stolen (truck) also the Remote start I assume was professionally installed from the looks of it and is by compustar and the PATS bypass module is by idatalink and its wired in as well.

In my manual it says to not use autostart systems in this truck because it could damage the VSM now my question is has it? being my keypad don't take the code and autolights don't work? I am beginning to also wander if the sunload sensor may be bad? but I don't see how them go bad cause they act as a resistor to the current when the sun hits it, unless the sun can ruin them from the heat?

I might try buying another one and report back the results to you all, that still don't explain the keypad not opening my doors (unlocking them) the sunload sensor has nothing to do with that.

any help or things to try would be great I might take it to the dealer later but I don't have that 7 or 800 dollars to throw at them to fix it for me, I would have to wait to save up to get that fixed.

Thanks!
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