courtesy light problem
Thread Starter
8th Gear
Joined: Mar 2015
Posts: 8
Likes: 1
courtesy light problem
I have an 85 and a problem. When I open the doors, the interior lights do not work and the deck lid switches in the doors do not operate. The deck lid switch in the center console works as it should. If I turn the light switch back to the left the interior lights work fine and the deck switches also work. Any advice. Thanks in advance...
Burning Brakes
Joined: Mar 2005
Posts: 756
Likes: 11
From: Susquehanna Valley
My '85 had the exact symptoms. It's caused when the interior light delay module fails. The module is located in the passenger footwell, right by the ecm. Used ones come up on ebay.
Here's one: http://www.ebay.com/itm/1984-1989-C4...pXq8Ws&vxp=mtr
Here's one: http://www.ebay.com/itm/1984-1989-C4...pXq8Ws&vxp=mtr
Team Owner
Joined: Sep 2003
Posts: 25,360
Likes: 2,729
OP - I've directed people to this thread previously. You might check it out. Do you have the FSM?
https://www.corvetteforum.com/forums...post1566755421
If you just search for "delay timer" I'd expect you find maybe 40+ threads. I didn't.
https://www.corvetteforum.com/forums...post1566755421
If you just search for "delay timer" I'd expect you find maybe 40+ threads. I didn't.
Safety Car
Joined: Aug 2009
Posts: 3,745
Likes: 275
From: Melbourne, Victoria, Australia
OP - I've directed people to this thread previously. You might check it out. Do you have the FSM?
https://www.corvetteforum.com/forums...post1566755421
If you just search for "delay timer" I'd expect you find maybe 40+ threads. I didn't.
https://www.corvetteforum.com/forums...post1566755421
If you just search for "delay timer" I'd expect you find maybe 40+ threads. I didn't.
I have replaced the delay timer three times in the 20+ years I have had my 85, they can fail without warning but are quite cheap new.
Thread Starter
8th Gear
Joined: Mar 2015
Posts: 8
Likes: 1
courtesy light problem
I have tested all the parts, bulbs, fuses, jamb switches and all are ok. I'm inclined to think that there is some kind of other switch or relay or something that is getting in the way. thank you
Safety Car
Joined: Aug 2009
Posts: 3,745
Likes: 275
From: Melbourne, Victoria, Australia
Corvette Central has the delay timers $34 I believe. www.corvettecentral.com
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Thread Starter
8th Gear
Joined: Mar 2015
Posts: 8
Likes: 1
Since I know all the lights, switches, fuses are all ok, I'm now inclined to lean toward getting a
new delay timer and give it a try. Thanks to all who pitched in. I'll post the results as soon as I get the part. Again....many thanks
new delay timer and give it a try. Thanks to all who pitched in. I'll post the results as soon as I get the part. Again....many thanks
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
The delay timer supplies the ground for the door switches. If the timer is bad the switches won't have a ground to make the hatch open.
Some fun facts:
The trans must be in Park or Neutral to open the hatch with the console switch. Manual trans cars must have the emergency brake on.
The console switch gets its ground through the starter motor. You can't open the hatch with the console switch while cranking the engine (Just for fun I tested this and it didn't open).
Some fun facts:
The trans must be in Park or Neutral to open the hatch with the console switch. Manual trans cars must have the emergency brake on.
The console switch gets its ground through the starter motor. You can't open the hatch with the console switch while cranking the engine (Just for fun I tested this and it didn't open).