Interior "lights off" switch

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Jan 15, 2011 | 06:01 PM

Mr. Blue

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From: Whitehall, PA USA

Interior "lights off" switch

Has anybody installed a switch to turn off all the interior lights that stay on when the door are open? I have this feature on another vehicle and it comes in handy when cleaning the interior or doing other work when there is plenty of sunlight to see by. Guess I could always just pull the fuse(s), but a switch would be a nicer solution.

Jan 15, 2011 | 06:13 PM

markcz

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From: North Augusta, SC

The lights turn off on their own after about 10 minutes. If you open or close a door they'll come back on until they go off again in another 10 minutes.

Jan 16, 2011 | 02:14 PM

Mr. Blue

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From: Whitehall, PA USA

Yes, I know abouit the timer, but every time the door is shut it resets. I usually work on the car in the driveway, and every time I have to go into the house (to get another tool, another beer, etc) I shut the door. Anybody know where the best place would be to cut in a switch that would kill all the interior lights?

Jan 16, 2011 | 02:52 PM

markcz

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From: North Augusta, SC

Is this for C5?

Jan 16, 2011 | 03:27 PM

markcz

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Looks like I/P fuses 2 & 29 -OR- relays 37 & 42.

Schematics are HERE and HERE

Jan 18, 2011 | 07:49 AM

Mr. Blue

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Thanks for the drawings!

Jan 18, 2011 | 11:40 AM

Mr. Blue

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From the schematics, I see that the interior lights are "monitored load". What exactly does this mean? If I shut them off when they are supposed to be on (by virtue of a timer, let's say) will that just cause a code to be thrown?

Jan 18, 2011 | 05:36 PM

markcz

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From: North Augusta, SC

That's what GM calls the "turn off after 10 minutes" feature. It watches that circuit for current and kills it after so much time if the car isn't running to prevent the battery from going dead.