What controls the interior light delay - Chevy Impala SS Forum
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post #1 of 15 (permalink) Old 01-30-2017, 11:10 AM Thread Starter
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What controls the interior light delay

With my 95 SS I have had the scenario where the interior lights dont go out after the normal 30 sec delay and just get stuck on when exiting the vehicle.

In troubleshooting I thought it was in the twilight sentinel module in passenger side kick panel, but removed that completely and still have the delay. From looking at the schematics in the service manual I cant quite tell. Is it in what they refer to as the "audiable warning" module in the convenience center? or is it the PCM or something else that actually control the delay?

Any advice on overall solutions or culprit also welcome.

Thanks.

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post #2 of 15 (permalink) Old 01-30-2017, 12:01 PM
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Believe it's in the chime module. I have an extra that I'd be willing to cut loose. How's $30 shipped? PayPal only,shoot me a PM if interested.

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post #3 of 15 (permalink) Old 01-30-2017, 01:04 PM
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Mine did same couple months ago. The green module up firewall just needed to be wiggled/reseated in plug. One day the lights just stayed on.
Worked for me hasn't happened again YMMV
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post #4 of 15 (permalink) Old 01-30-2017, 01:19 PM
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Certainly would be worth a try...The modules themselves are not repairable though.

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post #5 of 15 (permalink) Old 01-30-2017, 01:55 PM Thread Starter
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Sounds like we are fairly confident its in the green module? I will try removing it and maybe cleaning the contacts. Problem is it does not do it all the time.

Thanks for the offer 1slow96. I think I am going to give this a shot first but will keep it in mind.

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post #6 of 15 (permalink) Old 01-31-2017, 07:11 PM
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It is the green chime/warning sounds box that controls the interior light delay to off.

I recently found a good way bypass the delay to off,so now it acts like an old Chevy.Close the door lights go out immediately.I like not having to worry about or having to watch until my interior lights go off after 25-30 seconds.

This delay by-pass is very simple to do. Remove the green chime box,pop it open and slide out the circuit board.You will dremmel off pins A10 and A11 as close to the circuit board as possible.I marked the 2 pins in blue marker in a pic below. Reassemble the chime box and that part is finished.

Next make a simple copper jumper to insert into pin locations A10 and A11 in the conv center.I used a piece of 14 gauge solid copper wire,and tapped the ends flat and bent it into a U shape.Size of jumper 1/2"x1/2"x1/2". Finally,plug back in the green chime box so all the audible warning sounds will function.A clean simple no cost mod.

Jim

Last edited by Jimpala95; 08-07-2018 at 06:35 PM.
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post #7 of 15 (permalink) Old 01-31-2017, 11:48 PM
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Hmm, I don't recall my 96 Impala having any kind of delay on interior lights, I shut the car off and close the door and the interior lights go off immediately.

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post #8 of 15 (permalink) Old 01-31-2017, 11:49 PM
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Quote:
Originally Posted by 1slow96 View Post
Certainly would be worth a try...The modules themselves are not repairable though.
Why? Everything's repairable if you have the know how.

Not saying I do lol but still. People used to say the same thing about the ebcm on C5 corvettes. Pre 2001 they would flat out say don't buy the car because they were prone to ebcm failure and there was no fix. Eventually someone figured out a way. Yeah these cars might not be as popular anymore but the affected module is also nowhere near as complicated.
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post #9 of 15 (permalink) Old 02-01-2017, 10:12 AM
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If you know how? Yeah,that's a mighty big if...Especially considering one can easily purchase one for as little as $20-30... Or, find one in a salvage yard for practically nothing...

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post #10 of 15 (permalink) Old 02-01-2017, 10:21 PM
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Quote:
Originally Posted by 4x4high View Post
Hmm, I don't recall my 96 Impala having any kind of delay on interior lights, I shut the car off and close the door and the interior lights go off immediately.
Standard on Impala SS and civi Caprice's in 94-96
Jim
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