Tail lights shorted out

Asked by Feb 03, 2016 at 02:45 PM about the 1997 Ford F-150 XLT 4WD Extended Cab SB

Question type: Maintenance & Repair

My running lights , tail lights and dash lights
on my 1997 f150 xlt have shorted out. I have
replace mini fuse 7a and after 1 minute it
blows. This has happened several times .
can anyone help me diagnose this problem
so I don't have to pay $400 to fix a simple
short

11 Answers

60,505

Look for a short in the wire going to the tail lights. The wire under the bed that goes to the tail lights might be damaged. The dash and tail lights are on the same fuse.

Is it under the bed , like by the spare tire . a black and red wire ?

How can u tell if the wire is the cause

Is it close to the wire plug in under the bed of the truck close to the tail lights. I'm not sure how to tell if which wire would be the shorted wire. Any suggestions on how to figure that out

Had same problem with my Cummins not to long ago look along bed rails for any flat or chafed wire that was problem in my case

Ok thanks. Did u just splice and repair ?

6,525

To find out if it's shorted before or after the plug, disconnect the plug, if short still there, look for shorted wire before the plug. If it is gone, then the short is after the plug

Best Answer

Ok so I unplugged the tail lights by my spare tire and the fuse is not blowing anymore . can u tell me my next step . do I need to disassemble the tail lights ? What am I looking for?

6,525

There's other plugs further to the rear. Isolate right and left tail lights, ur narrowing it down. Disconnect all plugs and check for short by doing a resistance check or if u don't have a meter and can spare a couple more fuses, Disconnect let tail light and see if fuse still blows and do each one till u find out which side it is and keep going til find it

6,525

Remove, fuse, re-connect the plug u removed earlier and then perform the above step otherwise ur gonna waste the fuse righaway

Check your cigarette lighter & it's socket ( plug ). I had the same problem. The lighter was shorted. They are on the same fuse.

Your Answer

Add photo

Related Questions

F-150

Looking for a Used F-150 in your area?

CarGurus has 206,277 nationwide F-150 listings starting at $1,499.

ZIP:

Search Ford F-150 Questions

Ford F-150 Experts

#1 OJ
OJ
Reputation 7,910
#2 dandyoun
dandyoun
Reputation 4,360
#3 tennisshoes
tennisshoes
Reputation 2,750
View All

Related Models For Sale

Used GMC Sierra 1500
806 Great Deals out of 67,884 listings starting at $2,484
Used Dodge Ram 1500
462 Great Deals out of 11,092 listings starting at $700
Used Toyota Tacoma
521 Great Deals out of 40,493 listings starting at $2,495
Used Ford Mustang
456 Great Deals out of 45,641 listings starting at $1,999
Used Ford F-250
479 listings starting at $3,475
Used Ford Explorer
948 Great Deals out of 72,548 listings starting at $1,499
Used Chevrolet Tahoe
561 Great Deals out of 28,965 listings starting at $1,699
Used Ford Ranger
189 Great Deals out of 5,833 listings starting at $1,650
Used Jeep Wrangler
271 Great Deals out of 18,084 listings starting at $2,950

Used Cars For Sale

2017 Ford F-150 For Sale
18 Great Deals out of 128,088 listings starting at $17,740
2016 Ford F-150 For Sale
121 Great Deals out of 17,611 listings starting at $15,617
2015 Ford F-150 For Sale
185 Great Deals out of 7,905 listings starting at $17,900
2014 Ford F-150 For Sale
378 Great Deals out of 12,504 listings starting at $7,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.