2000 ford superduty, no dash lights

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ziggyb222

Silver - Posts: 593

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Joined: January 04, 2004

Location: Maine, United States

Posted: October 12, 2008 at 7:24 PM / IP Logged

Wired a cd player for this ford superduty today and all was fine. Tonight went to use the lights and there were no dash lights. Then I smelled something hot. It was comming from the light switch. Used a Scoche harness.. Had the 12 volt,ignition and ground soldered along with my other connections. I still have no dash lights and the five amp fuse looks good.. It only occures with the aftermarket harness plugged in and the light switch turned on..that is when it gets hot.. Is something back feeding or what... Thanks for your help.

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i am an idiot

Platinum - Posts: 13,670

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Joined: September 21, 2006

Location: Louisiana, United States

Posted: October 12, 2008 at 8:09 PM / IP Logged

Sounds like the ground pin and the illumination pin of your harness may be in the wrong positions. Try cutting the ground wire of the deck from the harness, and grounding the deck to the chassis or a dash support piece. The illumination wire works as a decent ground untill the lights are turned on, when the lights are turned on there is 12 volts on that wire.

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ziggyb222

Silver - Posts: 593

Joined: January 04, 2004

Location: Maine, United States

Posted: October 14, 2008 at 5:39 PM / IP Logged

That was it.... grounded it to the chassis and replaced the fuse. But still no lights on the dash. Checked every fuse in both boxes and all are ok now. GEM module????? Thanks for all your help..

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i am an idiot

Platinum - Posts: 13,670

Joined: September 21, 2006

Location: Louisiana, United States

Posted: October 14, 2008 at 6:09 PM / IP Logged

That wire is almost always protected by a fuse. It is probably going to be a 3 or a 5 amp fuse. Did you check the dimmer knob to make sure it is not all the way down?

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reax222

Copper - Posts: 220

Joined: March 11, 2006

Location: United States

Posted: October 14, 2008 at 7:30 PM / IP Logged

No, GEM causes other issues, wipers, power windows, ect and if you don't have a VSM then it can also effect power locks. You may want to verify that the org (I think it's orange) wire in the headlight switch has voltage.

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2000 ford superduty, no dash lights

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