Dash and brake light issue
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Postmaster
Joined: Feb 2011
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From: North Pole
Dash and brake light issue
I have a 2005 6.0 and recently my dash lights, fog lights and brake lights won't light up when I turn the headlight switch on. the headlight witch assembly was replaced. guess my question is what fuses or relays do I need to look into.
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Joined: Jul 2006
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I would suspect the ever popular "gem" module. My 05- 6 liter would occasionally have a blank out of dash lights/ ac control (ATC) and one memorable day windows and door locks as well. Problems never lasted long , turning off and restarting the truck was my solution. the one thing I did to eliminate the problem was to never use the autolamp feature for the headlights. I would guess that is your most likely culprit. the only thing I can think of would be to completely disconnect the batteries and see if that resets the system. Hope this helps. T H
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Joined: Jan 2004
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From: St Louis
I would suspect the ever popular "gem" module.
brake lights won't light up when I turn the headlight switch on.
The fog lamps and the instrument cluster illumination both run off CJB fuse F17 as do the running lights (front and rear), license plate lamps, and the roof markers (if equipped).
Have you checked F17?
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Postmaster
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From: North Pole
They're not supposed to... brake lights are supposed to come on when the brake pedal is pressed.
The fog lamps and the instrument cluster illumination both run off CJB fuse F17 as do the running lights (front and rear), license plate lamps, and the roof markers (if equipped).
Have you checked F17?
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