dome light supervision on 1999 silverado
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=99900
Printed Date: May 17, 2025 at 11:20 PM
Topic: dome light supervision on 1999 silverado
Posted By: whitextreme
Subject: dome light supervision on 1999 silverado
Date Posted: December 11, 2007 at 6:34 PM
I currently have an Avital 4200 installed in my 1999 Chevrolet Silverado and I am looking to hook up the dome light supervision. I just need to know what wire to tap into to do this and if it is Pos or Neg. Thanks.
Replies:
Posted By: V8Sonoma
Date Posted: December 11, 2007 at 6:35 PM
Is this a 99 old body style(classic) or a 99 up style truck?
Posted By: whitextreme
Date Posted: December 11, 2007 at 6:43 PM
Im sorry about that it is a new body style pickup
Posted By: V8Sonoma
Date Posted: December 11, 2007 at 6:49 PM
You can use the drivers door pin wire.It is located in pin b4 in the bcm,or in the drivers side junction box,with the harness coming from the door.make sure you use a meter and verify.It is a negative trigger doorpin.
Posted By: tedmond
Date Posted: December 11, 2007 at 7:27 PM
some units dont have an internal domelight supervision relay. Wire up a relay and jsut connect it to your door trigger pin 85 - constant 12v
86 - dome light supervision wire form alarm or RS
70 - high current ground
30 - Door pin wire
Posted By: whitextreme
Date Posted: December 11, 2007 at 7:43 PM
Ok and the BCM is under the the steering column correct?
Posted By: V8Sonoma
Date Posted: December 11, 2007 at 7:51 PM
whitextreme wrote:
Ok and the BCM is under the the steering column correct?
The BCM is located under the steering column.
Posted By: whitextreme
Date Posted: December 11, 2007 at 7:54 PM
Thank you guys for the help
Posted By: JWorm
Date Posted: December 11, 2007 at 7:55 PM
tedmond wrote:
some units dont have an internal domelight supervision relay. Wire up a relay and jsut connect it to your door trigger pin
85 - constant 12v
86 - dome light supervision wire form alarm or RS
70 - high current ground
30 - Door pin wire
You do not need a relay. The door pin wires at the BCM are low current. You can connect your domelight supervision wire directly to the drivers tan doorpin wire.
Posted By: whitextreme
Date Posted: December 12, 2007 at 9:05 PM
Got it all wired up with a relay thanks guys, what fuse are you supposed to use I only had a 5 amp and I used it and it is working so I assume it is ok right?
Posted By: JWorm
Date Posted: December 12, 2007 at 11:57 PM
You could have use a .2 amp fuse and you would have been fine. 5 amps will be fine. Its really only protecting the wire from burning if it shorts out. I am assuming you have it on the constant +12v wire. A relay wasn't even needed. Having it won't hurt.
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