My inside coursty and dome light stays on when i open the door. i took the fuse out to keep the battery from running down but the horn and back door latch works off of the same fuse. its a 1996 blazer.

Just a guess but your remote may be shorting out on the panic button. Try taking the battery out of the remote and just using the key to open the doors for a day or two and see if it still does it. If not, replace the remote. Another more likely possibility with this particular vehicle could be the door switches. The door switches on my Windstar would cause the dome light to stay on all the time when the contacts get corroded. If you van is locked with the alarm armed it could be the door switch causing the alarm to think someone has opened a door even when they haven't. (You can remove and clean or just replace all of the door switches or track down the particular suspected door switch. Mine was always the sliding door..clean the contacts with scotch brite or steel wool and coat with very thin battery terminal grease.)

its either a bad door switch,or could be the dome override switch by headlight switch,or your interior light switch is all the way up

Glad you solved it.

i have a similar problem but mine is my when i switch my int lights on inside the truck they blow a fuse but will work fine when you open the doors ???

You probably have a bad door switch in the drivers door.You have to have the door panel removed to gain access to the switch.I believe it is on the outer door handle.It will have wires going to it.You can remove the dome light fuse for the meant time.Hope this helps.Good luck.

Check inside the drivers and passenger side door jam for the little push in type switch. 9x out of 10 one or the other will be causing the short to the dome fuse. These little **** get rusty and also get alot of wear and tear from the door opening and shutting over and over. These switchs are what causes your dome light to come on when you open your door and or likewise they shut your dome light off when you shut you door. A very good way to test to see if one of these little switchs is the couprate is to take and hook up a voltage light into the negative side battery post after you disconnect the battery negative line.. If your voltage light is on than that would mean that you have a short somewhere in your system. Now, since you already know that you are blowing the dome fuse then your already halfway there. With the light on your votage light still on indicatin a short, unscrew the little switch on the door jam and disconnect the power wire from it. Check to see if the light on your voltage light is still indicating a short, if not then you can be sure that the door jam was the coulprete. Hope this is of help.

the door adjar switch is the problem. the cargo light stays on until 35mph, as well as the overhead dome light. i just took the bulb out of the dome light and dont worry about the cargo light. it stays on for 30 min after the truck is turned off if the switch didnt trip properly. it shouldnt cause any problems as long as your batteries are good. i havent replaced the switch yet but it should be on the part of the door by the latch. get the replacement part and do a visual I.D. when you get the panel off. then replace it. the sensor is only 14$

Hello! The instigator of this problem appears to be the the rear cargo lamp; Official name is rear dome light. You'll need a multimeter set on the X10 ohm scale to shoot this trouble. Leave the rear dome light bulb out. There are two switches involved; #1 the rear dome light on/off. #2 the right hand front door switch.

Pull the horn fuse out, remove the rear dome light cover, drop the rear dome light down to access the wiring and close all doors on the vehicle. Connect one lead of the ohm meter to the white wire and the other to body ground. If you read any resistance one or both of the two switches (dome light switch or right hand front door switch) is remaining closed when all doors are closed. Next disconnect the black lead from the dome light switch and see if reading changes to zero. If it does this is indicating that the dome light switch is defective. If it does not, disconnect the right hand door switch and take another reading at the same location. If you still measure any resistance, the black wire of the rear dome light is shorted to ground, if not then the right hand door switch is the culprit.

The reason the right hand door switch and not the left hand door switch is involved is the fact that opening the left front door would turn on the front dome light as well as the rear light. If both dome lights are staying on with all doors closed I would then involve both door switches in this test procedure. If your vehicle is a four door model then disconnect one door switch at a time while performing this test procedure.

The horn fuse also supplies power to the rear dome light, and I suspect the two events are related.


Guru..............saailer


I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

what i think is you problem is the device attached the one door latch and need to be replaced for a new one,you can get them from the dealership and the are not expensive,this device is the one turn your lights on(interior) when you open de doors

Use a 12volt test light between the positive battery post and the positive cable with the positive cable disconnected from the battery.
Keep key off.
You will see the test light "light" with any drain.

Any drain showing a dim test light is..... OK
Any drain showing a bright light is.....BAD

Disconnect items (fuses) one at a time and watch the light.
Keep the doors closed....the inside dome light is a drain with the door open!
After fuses are checked....disconnect the alt if needed and watch the light.
Keep going until you get rid of the bright light.