Crazy Lights
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New User
Joined: Dec 2005
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Crazy Lights
Anybody know anything about why the interior lights and cargo lights on a 99 f-350 superduty would come on when the speedometer hits around 12 mph and switch off after 15 mph,then stay on for ten minutes after shutting truck off.
help please.
help please.
Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Welcome to FTE JRIC.
I am not sure on your light problem, but I have heard that maybe the GEM module needs to be replaced or reprogrammed if things are acting strange like that.
Stick around, there's lot's of guys here that know a lot more on that subject than me.
I am not sure on your light problem, but I have heard that maybe the GEM module needs to be replaced or reprogrammed if things are acting strange like that.
Stick around, there's lot's of guys here that know a lot more on that subject than me.
