Notices
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

no instrument panel lights

Thread Tools
 
Search this Thread
 
Old Jun 5, 2003 | 08:53 PM
  #1  
torquemeister's Avatar
torquemeister
Thread Starter
|
Tuned
20 Year Member
Joined: Mar 2003
Posts: 394
Likes: 10
From: austin
no instrument panel lights

I just replaced my AM/FM/Cassette deck in my 86 to an aftermarket AM/FM/CD player. The wiring harness from Best Buy did not have the right harness, so I just clipped all the wires and hooked them up directly to the radio. The radio works perfectly fine, but now my instrument panel lights don't turn on when my headlights are on. The 5A fuse had blown, so I replaced it, but they still don't turn on. Is there any way that this problem is the result of something I did in the radio wiring, or do I just need to pull the dash and replace the bulbs?

The radio's wires that I connected ater testing with a test light were:

LG/Y-constant power from battery
Y/Blk-power when ignition is on
LB/R-ground
The other 4 wires were just for the door speakers


Thanks,
TM
 
Reply
Old Jun 5, 2003 | 10:43 PM
  #2  
82F100SWB's Avatar
82F100SWB
Post Fiend
25 Year Member
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
no instrument panel lights

The light blue with red tracer is your instrument lighting, not the ground. There's your problem.
Evan
 
Reply
Old Jun 6, 2003 | 12:44 AM
  #3  
Mil1ion's Avatar
Mil1ion
New User
Joined: Jan 2008
Posts: 0
Likes: 24
no instrument panel lights

LB/R-ground

You state these are the stereo wires not the behind dash wiring.
Ford uses a Light blue/red striped wire to control the variable dash lighting.


What aftermarket stereo did you buy?
 
Reply
Old Jun 6, 2003 | 06:59 AM
  #4  
torquemeister's Avatar
torquemeister
Thread Starter
|
Tuned
20 Year Member
Joined: Mar 2003
Posts: 394
Likes: 10
From: austin
no instrument panel lights

I bought a Jensen CD3010X CD player.

This morning I regrounded the radio's ground wire on metal behind the radio. Now I have the LB/R wire with nothing to attach it to. The new radio doesn't have a wire for illumination, since it's an LCD that's always on if the radio is turned on. The only wire that I did not use from the radio's wiring is the blue wire for the amp (which I don't have). Then I turned on the headlights, and put my test light on the LB/R wire expecting it to light it, but nothing happened. Is it possible that more damage was done to the circuit by having the radio grounded on this wire?

Thanks,
TM
 
Reply
Old Jun 6, 2003 | 02:34 PM
  #5  
steve83's Avatar
steve83
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
no instrument panel lights

No, if your dash lights still work, then the LB/R circuit is OK. Maybe that wire is cut somewhere else. If you don't need it and your dash lights work, just stretch the insulation to cover the end of the wire and forget about it.
 
Reply
Old Jun 6, 2003 | 04:40 PM
  #6  
torquemeister's Avatar
torquemeister
Thread Starter
|
Tuned
20 Year Member
Joined: Mar 2003
Posts: 394
Likes: 10
From: austin
no instrument panel lights

All of the lights work except for the instrument panel lights. If I want to know how fast I'm going when it's dark out, I have to turn on the dome light to see the speedometer. But I was trying to avoid pulling the dash to replace those bulbs unless I was certain that they were the problem, and not something I caused when I installed the radio.

TM
 
Reply
Old Jun 7, 2003 | 01:35 AM
  #7  
82F100SWB's Avatar
82F100SWB
Post Fiend
25 Year Member
Joined: Jan 2000
Posts: 5,330
Likes: 17
From: Dryden, ON, Canada
no instrument panel lights

Did you replace the panel lighting fuse again?? I'm just re-reading your post and trying to think what it could be, and that sprung into my head, you didn't mention replacing it again, as it would have blown immediatley when you tried to turn the lights on with it still hooked up that way.
Just a thought.
Evan
 
Reply
Old Jun 7, 2003 | 05:28 AM
  #8  
torquemeister's Avatar
torquemeister
Thread Starter
|
Tuned
20 Year Member
Joined: Mar 2003
Posts: 394
Likes: 10
From: austin
no instrument panel lights

yes, I put another 5A fuse in, but it still didn't work. I'm at a loss right now, so I guess I'll pull the dash today and replace those bulbs.

TM
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Jun 7, 2003 | 06:54 AM
  #9  
bremen242's Avatar
bremen242
Logistics Pro
20 Year Member
Joined: Jan 2002
Posts: 3,739
Likes: 3
From: GANS
no instrument panel lights

maybe your '86 is different, but i know my '84 didn't have a constant power source. I had to run one. of course it had an AM radio and one speaker too though.
 
Reply
Old Jun 7, 2003 | 10:47 PM
  #10  
torquemeister's Avatar
torquemeister
Thread Starter
|
Tuned
20 Year Member
Joined: Mar 2003
Posts: 394
Likes: 10
From: austin
no instrument panel lights

well I replaced all of the bulbs, and the 15A fuse for the parking and tail lights. all is working correctly now!

TM
 
Reply




All times are GMT -5. The time now is 05:38 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE