Trunk Tail Lights Malfunctioning........ - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-19-2004, 08:18 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Las Vegas, NV
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
94SuperWhiteLight is on a distinguished road
Default Trunk Tail Lights Malfunctioning........

I have a 94 SSEi with the Vehicle Information Center and it is telling me that I have a tail light out. The lights on my trunk are not working and in the past I replaced the bulbs and it fixed this same issue. Well this is not the case. So I broke out my GM Service Manual for the car and started probing some wires for voltage. I am getting a signal for my reverse lights, but nothing for the tail lights (white wire). Has anyone come across this same issue? I have trouble shooted everything and it is pointing toward the Sensing Module (can't recall it'* exact name ) for that circuit. Any ideas?
94SuperWhiteLight is offline   Reply With Quote
Old 01-19-2004, 08:34 PM   #2
Senior Member
Certified GM nut
 
Join Date: Sep 2002
Location: Eden Prairie, MN
Posts: 1,728
Thanks: 0
Thanked 0 Times in 0 Posts
zzzzzeke is on a distinguished road
Default

i had some wires pinched before and i was blowing fuses when i hit the brakes
zzzzzeke is offline   Reply With Quote
Old 01-19-2004, 08:46 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Las Vegas, NV
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
94SuperWhiteLight is on a distinguished road
Default

I checked for that, but I am not getting power at all. The brake lights work fine, these are just running lights.
94SuperWhiteLight is offline   Reply With Quote
Old 01-20-2004, 02:07 AM   #4
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 3,392
Thanks: 0
Thanked 0 Times in 0 Posts
fuddyduddy121 is on a distinguished road
Default

Do the license plate, side marker, or main tail lamps (outer ones) work?
fuddyduddy121 is offline   Reply With Quote
Old 01-20-2004, 12:32 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Las Vegas, NV
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
94SuperWhiteLight is on a distinguished road
Default

All of the other lights work, except the ones on the trunk. The reverse lights on the trunk work, but the other lights don't. I think I am going to by a new Lamp Sensing Module for that system. We'll see...............
94SuperWhiteLight is offline   Reply With Quote
Old 01-20-2004, 01:57 PM   #6
Senior Member
True Car Nut
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Thanks: 0
Thanked 1 Time in 1 Post
acg_ssei is on a distinguished road
Default

Quote:
Originally Posted by 94SuperWhiteLight
All of the other lights work, except the ones on the trunk. The reverse lights on the trunk work, but the other lights don't. I think I am going to by a new Lamp Sensing Module for that system. We'll see...............
The Adaptive Lamp Monitor doesn't drive the bulbs; it monitors current flow to the bulbs. If only the bulbs in the trunk lid are out, I'd check the wiring where it jumps the gap from body to trunk. IIRC, the taillamps in the trunk lid are on the same circuit as those in the rear quarters, so you're more likely going to find a broken wire in that area.

Get a needle test probe, verify that the wire is dead where it goes into the trunk lid taillamps, then follow it back until you find a point where it'* not dead. I think it'* probably fine in the trunk, but broken somewhere near the trunk lid hinges.
acg_ssei is offline   Reply With Quote
Old 01-20-2004, 03:47 PM   #7
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Las Vegas, NV
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
94SuperWhiteLight is on a distinguished road
Default

Well, acg-ssei, I am ahead of you there and the problem is that I am not getting any power to the wire from inside the car. I removed the back seat and probed the wire with my test light, MacTools LED light that powers up to tell ground and power signals, and there is no power to the wire in that area either. The GM manual says to go to the module and test out some pins. With the minimal tracing I have done, I have been unable to locate the Adaptive Module. Can you assist?
94SuperWhiteLight is offline   Reply With Quote
Old 01-20-2004, 05:56 PM   #8
Senior Member
True Car Nut
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Thanks: 0
Thanked 1 Time in 1 Post
acg_ssei is on a distinguished road
Default

Quote:
Originally Posted by 94SuperWhiteLight
Well, acg-ssei, I am ahead of you there and the problem is that I am not getting any power to the wire from inside the car. I removed the back seat and probed the wire with my test light, MacTools LED light that powers up to tell ground and power signals, and there is no power to the wire in that area either. The GM manual says to go to the module and test out some pins.
Oh, okay, gotcha...

Quote:
With the minimal tracing I have done, I have been unable to locate the Adaptive Module. Can you assist?
I think it'* up under the dash... Fuddy? Can you help? My manual'* at home, and I'm not.
acg_ssei is offline   Reply With Quote
Old 01-20-2004, 06:42 PM   #9
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Oct 2003
Location: Las Vegas, NV
Posts: 45
Thanks: 0
Thanked 0 Times in 0 Posts
94SuperWhiteLight is on a distinguished road
Default

Well, I will look for it tonight in my manual and check it out. Thanks anyways for the assistance!
94SuperWhiteLight is offline   Reply With Quote
Old 01-20-2004, 10:00 PM   #10
Senior Member
True Car Nut
 
Join Date: Sep 2002
Posts: 3,392
Thanks: 0
Thanked 0 Times in 0 Posts
fuddyduddy121 is on a distinguished road
Default

I tried to find that once on my car - I couldn't find it by removing the driver'* side kick panel and under the dashboard. I have a feeling you have to pull a lot of the dashboard out. It'* supposed to be to the right of the steering column, behind the center of the instrument panel.
fuddyduddy121 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Trunk piece off when clearing tail lights blakeburcham Detailing & Appearance 12 04-02-2009 12:03 AM
Changing trunk lid tail lights 97-99 Danthurs Electrical 0 01-13-2009 04:25 PM
Shift indicator lights and power locks malfunctioning big_news_1 Everything Electrical & Electronic 30 04-01-2006 11:41 PM
89 SE inop pwr mirrors, dr locks, tail lights, brake lights, gene254 1987-1991 3 07-07-2004 09:42 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 07:40 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.