Go Back   Blazer Forum - Chevy Blazer Forums > Mechanical & Maintenance > General Tech Help > 2nd Gen S-series (1995-2005) Tech
Sign in using an external account
Register Forgot Password?
Search


Welcome to Blazer Forum!
Welcome to Blazer Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, join Blazer Forum today!


Closed Thread
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-26-2012, 05:03 PM
wallacereid's Avatar
Beginning Member
2000 Chevrolet Blazer
 
Join Date: Nov 2011
Location: Boulder, CO
Posts: 30
wallacereid is on a distinguished road
nope nope nope nope nope
Default voltage drop at license plate bulb. Only 7.6 volts.?

I know this is a little picky, buy the driver side plate light does not work. After verifying the bulb, I tested the voltage at the socket and back down the wire a foot or so to the first plug. Sure enough, it's only getting 7.6 volts at both places, where the passenger side light is getting 11.5 volts and is illuminating.

I am not an electrician. How can the voltage be less....I thought it was either working, or not.

Seems light the bulb would glow a little, but nothing.

I saw on an older post from Vegas Dan, that the ground was bad and he used steel wool. But where is the groung, and where did he use steel wool?

Last edited by wallacereid; 01-26-2012 at 05:10 PM.
  #2  
Old 01-26-2012, 05:04 PM
xgiovannix12's Avatar
BF Guru
1992 Chevrolet S-10
My Garage
 
Join Date: Oct 2010
Location: Summit Ny
Posts: 5,959
xgiovannix12 will become famous soon enough
Default

is the socket corroded inside ? ya might wanna clean it out and see if the voltage goes up
__________________


My Build Thread , April 2012 Rotm ,Differential Electric Locking System DIY
>>>My thoughts and comments should be considered at ones own discretion <<<
Current Project: Still waiting for a spider.
  #3  
Old 01-26-2012, 05:12 PM
wallacereid's Avatar
Beginning Member
2000 Chevrolet Blazer
 
Join Date: Nov 2011
Location: Boulder, CO
Posts: 30
wallacereid is on a distinguished road
nope nope nope nope nope
Default

It looks good, but I'm going to scrub it out...I'll let you know....
  #4  
Old 01-26-2012, 05:12 PM
xgiovannix12's Avatar
BF Guru
1992 Chevrolet S-10
My Garage
 
Join Date: Oct 2010
Location: Summit Ny
Posts: 5,959
xgiovannix12 will become famous soon enough
Default

you know what ya can do ? put the tip of the multimeter where the wire enters the socket and see if you get the correct voltage

thats if you have room to put the needle in

just thought of it now
__________________


My Build Thread , April 2012 Rotm ,Differential Electric Locking System DIY
>>>My thoughts and comments should be considered at ones own discretion <<<
Current Project: Still waiting for a spider.
  #5  
Old 01-26-2012, 05:30 PM
wallacereid's Avatar
Beginning Member
2000 Chevrolet Blazer
 
Join Date: Nov 2011
Location: Boulder, CO
Posts: 30
wallacereid is on a distinguished road
nope nope nope nope nope
Default

The socket was clean, but I folded a small sliver of sandpaper and cleaned the socket connections....no change.
  #6  
Old 01-26-2012, 05:31 PM
xgiovannix12's Avatar
BF Guru
1992 Chevrolet S-10
My Garage
 
Join Date: Oct 2010
Location: Summit Ny
Posts: 5,959
xgiovannix12 will become famous soon enough
Default

are bolt bulbs connected to the same line (wire) ?
__________________


My Build Thread , April 2012 Rotm ,Differential Electric Locking System DIY
>>>My thoughts and comments should be considered at ones own discretion <<<
Current Project: Still waiting for a spider.
  #7  
Old 01-26-2012, 05:32 PM
wallacereid's Avatar
Beginning Member
2000 Chevrolet Blazer
 
Join Date: Nov 2011
Location: Boulder, CO
Posts: 30
wallacereid is on a distinguished road
nope nope nope nope nope
Default

I could not get the tester probes in the back of the socket....But I don't think that's the issue, since I went all the way back to the in line plug a foot before the socket, and I get 7.6 volts there too...where is the ground?

Last edited by wallacereid; 01-26-2012 at 05:35 PM.
  #8  
Old 01-26-2012, 06:04 PM
BF Veteran
1999 Oldsmobile Bravada
 
Join Date: May 2011
Location: SW Central OH
Posts: 2,252
pettyfog is a jewel in the roughpettyfog is a jewel in the roughpettyfog is a jewel in the rough
Default

Quote:
Originally Posted by wallacereid View Post
I could not get the tester probes in the back of the socket....But I don't think that's the issue, since I went all the way back to the in line plug a foot before the socket, and I get 7.6 volts there too...where is the ground?
You got that voltage at the plug, on the battery side of it?

Now read the brown wire to frame. If brown wire is 11 volts to frame THEN you have bad ground in the splice pack, not at grounding point because pass side is okay and they all join in the splice pack.
Unless someone at factory screwed up and used the pickup harness.
The black wire is ground. The Grounding point for all rear electrical is top of crossmember above the differential.
______________________________________________

For info purposes:
In 99 the underhood fuse that drives license lights, at least on step bumper, is...
TRL PRK
__________________
Taking a long hiatus; totally unrelated blather at....

99 Bravadiva - She's SUCH a Good Girl.

Last edited by pettyfog; 01-30-2012 at 09:28 AM.
  #9  
Old 01-26-2012, 06:05 PM
xgiovannix12's Avatar
BF Guru
1992 Chevrolet S-10
My Garage
 
Join Date: Oct 2010
Location: Summit Ny
Posts: 5,959
xgiovannix12 will become famous soon enough
Default

Thank you for clearing that MR fog

IM in a whole different world right now . Had a real long day
__________________


My Build Thread , April 2012 Rotm ,Differential Electric Locking System DIY
>>>My thoughts and comments should be considered at ones own discretion <<<
Current Project: Still waiting for a spider.
  #10  
Old 01-26-2012, 06:19 PM
wallacereid's Avatar
Beginning Member
2000 Chevrolet Blazer
 
Join Date: Nov 2011
Location: Boulder, CO
Posts: 30
wallacereid is on a distinguished road
nope nope nope nope nope
Default

No, the testing was done on the connection side of the plug, the back is sealed....

Thanks for that.....just went out and retested to verify, and I now have less that 1 volt at the bulb socket, and the upstream plug (socket side)...whereas, yesterday, I definately had 7.6 volts. seems like something is loose upstream of the plug, either at the back of the plug, or into the harness itself. Did a lot of wiggling, but nothing...

When you say read the brown wire to frame, you mean touch the brown wire with one test lead, and the frame with another...correct?
Old 01-26-2012, 06:19 PM
 
 
 
Closed Thread

Tags
2000, blazer, bulb, chevy, cleaning, corroded, dropping, license, lights, pack, plate, problems, s10, socket, splice, testing, voltage


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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
License plate illumination ? chach Lighting & Electrical 1 06-06-2011 08:08 PM
02 s10 volts drop at idle djpaulys 2nd Gen S-series (1995-2005) Tech 0 03-25-2011 07:27 PM
License plate bulb socket 4x4VegasDan 1st Gen S-series (1983-1994) Tech 3 06-11-2010 07:44 PM
license plate light..... chris015 General Chat 4 05-02-2009 02:03 PM
How to remove/replace license plate bulb JST4SHO 2nd Gen S-series (1995-2005) Tech 15 01-30-2009 10:48 PM

Advertising

Featured Sponsors
Vendor Directory
Our Sponsors

All times are GMT -5. The time now is 11:24 PM.

Internet Brands, Inc.