Cargo hatch lights don't work
Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
Cargo hatch lights don't work
Hey all. My cargo lights don't work on my 89. The hatch release works, all of the other interior lights work. The interior lights come on when each door is open and with the headlight/dome light switch. The cargo lights won't work with the hatch open or any of the switches on. I'm not getting any indications on the dash with the hatch open either. They have never worked since I have owned the car. Does anyone have an idea or a schematic for this? Thanks!
Safety Car
Joined: Nov 2008
Posts: 4,328
Likes: 15
From: Jacksonville FL
Not to be a smart azz but have you checked the bulbs and the sockets for 12V? I always check the simple stuff first because we often overlook the obvious. I would then check the plunger switch at the hatch release mechanism altho if they dont light with opening the door, I would think they wouldnt be the issue. It may be dirty or damaged. Check for 12v there as well. Other than that its just a hunt and peck to find out where the problem lies. You may find where your PO has disconnected a wire because of a short or something.
Good luck!
Good luck!
Burning Brakes
Joined: Oct 2001
Posts: 911
Likes: 5
From: TN
no lgts
I would be happy without any interior lights on my 1984 and 1996 Corvettes. Can't pull the fuse for them because there are so many other things that use the same fuse. Actually I did think about removing the bulbs just today. These lights stay on to long after I shut the doors.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
My recollection is that they are supposed to stay on for 45 seconds. I could be wrong on that and it might be one minute. Certainly no longer than one minute, though. The important thing is that they do turn off or your battery will soon go dead.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
You should have 12v. at the cargo lamp sockets at all times. They are switched on by a ground circuit thru the diode module shown in Cliff's picture (the module at the right in his photo).
Does your power antenna work? Does your spare tire lamp work? (Just in case: it's located in the center of the car, under your rear bumper). These two things are wired to the same spot in your harness, and also should have 12v. at all times.
Need an answer to this before proceeding.
Does your power antenna work? Does your spare tire lamp work? (Just in case: it's located in the center of the car, under your rear bumper). These two things are wired to the same spot in your harness, and also should have 12v. at all times.
Need an answer to this before proceeding.
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Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
You should have 12v. at the cargo lamp sockets at all times. They are switched on by a ground circuit thru the diode module shown in Cliff's picture (the module at the right in his photo).
Does your power antenna work? Does your spare tire lamp work? (Just in case: it's located in the center of the car, under your rear bumper). These two things are wired to the same spot in your harness, and also should have 12v. at all times.
Need an answer to this before proceeding.
Does your power antenna work? Does your spare tire lamp work? (Just in case: it's located in the center of the car, under your rear bumper). These two things are wired to the same spot in your harness, and also should have 12v. at all times.
Need an answer to this before proceeding.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
I'm not sure what you mean by this comment. Have you found your spare tire lamp? Does it come on when you open a door? If no, is the light bulb good? Do you have 12v. at the socket? It should have 12v. at all times.
Last edited by Hot Rod Roy; Mar 2, 2015 at 05:27 PM.
Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
Right now the car is parked in the back of the garage against the wall. I'll bring it back out when the snow goes away. I have looked for the spare tire light and have never seen anything lit up under the car. I'll start there when I move the car. I would guess I need to look at that module and the connections there if I don't have power at the spare tire light.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
The diode module has nothing to do with the lack of 12v. at the hatch lights sockets or the spare tire light socket. The diode module is on the ground side of the lamp circuitry. If you don't have 12v. at the sockets, your lights can't work.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
The diode module has nothing to do with the lack of 12v. at the hatch lights sockets or the spare tire light socket. The diode module is on the ground side of the lamp circuitry. If you don't have 12v. at the sockets, your lights can't work.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
Safety Car
Joined: Aug 2009
Posts: 3,745
Likes: 275
From: Melbourne, Victoria, Australia
Hi
There are differences with the courtesy delay timer's.
My original one would light the hatch area with the door opening, the second hand replacement delay timer is different. Open door and floor lights door lights and mirror lights work, the rear hatch cargo lights only work when the hatch is opened. The delay is around 30 seconds for the lights to go out when the car has been locked.
See the Corvettecentral website below, regarding different part numbers for the courtesy lights delay timer board.
http://www.parts123.com/corvettecent...ar=&part=delay timer&searchtype=50
http://www.parts123.com/corvettecent...50f&ukey=29998
http://www.parts123.com/corvettecent...50f&ukey=29596
There are differences with the courtesy delay timer's.
My original one would light the hatch area with the door opening, the second hand replacement delay timer is different. Open door and floor lights door lights and mirror lights work, the rear hatch cargo lights only work when the hatch is opened. The delay is around 30 seconds for the lights to go out when the car has been locked.
See the Corvettecentral website below, regarding different part numbers for the courtesy lights delay timer board.
http://www.parts123.com/corvettecent...ar=&part=delay timer&searchtype=50
http://www.parts123.com/corvettecent...50f&ukey=29998
http://www.parts123.com/corvettecent...50f&ukey=29596
Last edited by gerardvg; Mar 2, 2015 at 08:24 PM.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
There are differences with the courtesy delay timer's. My original one would light the hatch area with the door opening, the second hand replacement delay timer is different. Open door and floor lights door lights and mirror lights work, the rear hatch cargo lights only work when the hatch is opened.
If there is tampering at his hatch switch, he would still have 12v. at his cargo lamp sockets, so that's not the stated problem. There may be other problems, but they aren't related to his lack of 12v. at the cargo lights.
Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
Thanks Cliff. I have never seen that light before. I'll check it out in few weeks. Thank you all for your help! It's appreciated.
Thread Starter
Instructor
Joined: Apr 2010
Posts: 114
Likes: 0
From: MD
The diode module has nothing to do with the lack of 12v. at the hatch lights sockets or the spare tire light socket. The diode module is on the ground side of the lamp circuitry. If you don't have 12v. at the sockets, your lights can't work.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
It is strange that your antenna will go up and down. All of these devices get their 12v. from connector C124 pin D, which is located behind the RH end of the instrument panel. I'm wondering if someone may have cut the wires to your cargo lamps, because they couldn't figure out the hatch switch. You'll probably have to remove the plastic "halo" panels to check this out.
Ok....... I apologize. I was wrong. After tearing the freaking car completely apart, it does have 12 volts to the lights. On both sides of the sockets there is 12 volts. Even with the bulb out, there is 12 volts on each side.
So I'm definitely missing the ground, not the positive.
Safety Car
Joined: Sep 2004
Posts: 3,953
Likes: 550
From: Mission Viejo CA
Don't worry about connector C124. If that was bad, your antenna wouldn't work.
Last edited by Hot Rod Roy; Mar 29, 2015 at 01:47 AM.
Team Owner
Joined: Jan 2003
Posts: 20,290
Likes: 239
From: Summerland B.C. Canada
Hey all. My cargo lights don't work on my 89. The hatch release works, all of the other interior lights work. The interior lights come on when each door is open and with the headlight/dome light switch. The cargo lights won't work with the hatch open or any of the switches on. I'm not getting any indications on the dash with the hatch open either. They have never worked since I have owned the car. Does anyone have an idea or a schematic for this? Thanks!
If it is, it is likely bad. It controls ground to cargo lights and dash indicator.
Here is the schematic from my 86 manual.
http://members.shaw.ca/dankai/Interior%20Lights.pdf