electrical problem WTF??? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 8 Old 07-12-2014, 09:27 PM Thread Starter
spottedfrog
Registered User
1979 CJ5 
 
Join Date: Sep 2010
Location: Grand Junction
Posts: 835
electrical problem WTF???

So I parked the Jeep for the night. I just looked out side the window and the taillights were illuminated! the ignition is off, the headlights are off the volt meter is at zero. nothing is on except the tail lamps.
this is the 1st time this has ever happened.
I disconnected the battery so the Jeep wont catch fire tonight.

Where do I even start to track down the problem. Electrical is my weak point for sure.

spottedfrog is offline  
Sponsored Links
Advertisement
 
post #2 of 8 Old 07-12-2014, 10:03 PM
Kstein
Member
1985 CJ7 
 
Join Date: Dec 2010
Location: Navasota
Posts: 191
thinking out loud.....

I think the backup lights and/or the brake lights are on an always-hot circuit (not controlled by the ignition switch.)

Could the brake light switch be bad?

TAMC85 CJ7
Still Original: Tub, Rollbar; Frame; 258 Block; T176; DANA300; Steering; DANA30; AMC20; Drive Shafts; Wheels; Tank; Altenator; Fan; Frt Bumper; Speedo; Heater Box; Spare Carrier; Seat risers
Replaced: Radiator; Valve Cover; Clutch linkage; Taillights; Frt Brake Calipers; Fuel, Tmp, and Oil Pressure Gauges; Exhaust line; Seat Belts; Paint
Mods: Mopar MPI(in progress); 4.0 Al Cylinder Head; OME YJ Suspension; MC Seats; Tub liner; 31" Tires
Kstein is offline  
post #3 of 8 Old 07-12-2014, 10:29 PM Thread Starter
spottedfrog
Registered User
1979 CJ5 
 
Join Date: Sep 2010
Location: Grand Junction
Posts: 835
Quote:
Originally Posted by Kstein View Post
thinking out loud.....

I think the backup lights and/or the brake lights are on an always-hot circuit (not controlled by the ignition switch.)

Could the brake light switch be bad?
Could be its 34 years old.
spottedfrog is offline  
post #4 of 8 Old 07-16-2014, 04:28 PM
carnuck
Registered User
1984 J-Series Truck 
 
Join Date: Nov 2004
Posts: 3,210
Someone install a stereo incorrectly?

"Usually found in a Jeep near Reiter, WA"
FOR SALE STUFF
http://tinyurl.com/jimsclads

'81 Eagle wagon with upgrades $2500
'87 Comanche shortbox 4.0/AW4/NP242 on 33" tires $3500
carnuck is offline  
post #5 of 8 Old 07-16-2014, 04:51 PM
lucdog
Registered User
1980 CJ5 
 
Join Date: Jul 2006
Posts: 8,781
Quote:
Originally Posted by Kstein
thinking out loud..... I think the backup lights and/or the brake lights are on an always-hot circuit (not controlled by the ignition switch.) Could the brake light switch be bad?
Or just need to be adjusted.

And it's the brake lights.

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
lucdog is offline  
post #6 of 8 Old 07-16-2014, 05:41 PM Thread Starter
spottedfrog
Registered User
1979 CJ5 
 
Join Date: Sep 2010
Location: Grand Junction
Posts: 835
No stereo. It has never done this before, so the adjustment shouldn't have been an issue. I swapped out the switch and so its ok. BUT it was fine previously too....time will tell I guess.
spottedfrog is offline  
post #7 of 8 Old 07-16-2014, 06:01 PM
lucdog
Registered User
1980 CJ5 
 
Join Date: Jul 2006
Posts: 8,781
Quote:
Originally Posted by spottedfrog
No stereo. It has never done this before, so the adjustment shouldn't have been an issue. I swapped out the switch and so its ok. BUT it was fine previously too....time will tell I guess.
:-) everything is usually fine till it breaks or wears out

1957 WILLYS pickup,
1973 J 4000,
1978 CJ7 DD.
1979 CJ7 360, TH400/Quadratrac.
1979 J20
1980 CJ5 trail Jeep.
1983 CJ7
1989 YJ the CJ to YJ.
lucdog is offline  
post #8 of 8 Old 07-16-2014, 06:55 PM
zillla
Registered User
1930 VJ 
 
Join Date: May 2009
Location: Wyoming
Posts: 1,279
Could it be a reflection or light shining in the tail lights? These things can be a real pain to track down. I'd start with an OEM wiring diagram and chase it out. Otherwise I'd start at the light switch

Pull my finger
zillla is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome