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Discussion Starter · #1 ·
sorry for the re-post, but i did not post in the correct section to begin with.

Hello there, my ole 89 thunderbird with the NA 3.8 has an issue where whenever the light fuse is in the running lights on the corners of the vehicles are stuck on. I think i narrowed it down to a bad dimmer switch (the one with the 2 wheels on it), but i'm here for a 2nd opinion and a way to rectify the issue.
 

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Discussion Starter · #3 ·
The 2-wheel control is for the auto lamp system. If you suspect that's the issue make sure both wheels are turned all the way down to off to disengage auto lamp. If this doesn't solve it then it may be the main light switch, perhaps the contacts for the parking lights are not breaking contact when switched off.
no matter how i have the wheels set, or the switches pulled the lights always stay on. If its the case of the contacts for the parking lights not breaking contact, where exactly would i dig in to investigate that?
 
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