Go Back   DodgeForum.com > Dodge Trucks > Dodge Ram > 3rd Gen Ram Tech
Sign in using an external account
Register Forgot Password?


3rd Gen Ram Tech 2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

Tail lights go on in parked truck?

Reply
 
 
 
 
Thread Tools Search this Thread
  #1  
Old 11-26-2013, 08:50 AM
hjens hjens is offline
Registered User
 
Join Date: Mar 2011
Posts: 9
Default Tail lights go on in parked truck?

I have a 2005 Dodge Ram 2500 diesel, 4X4, regular cab, manual 6-speed transmission. For the past two nights my tail lights and cargo light have mysteriously turned on by themselves while the truck is parked in 1st gear with the parking brake on. I live in the Colorado mountains, no other homes or vehicles nearby and while the nights have been cold, nothing unusual for this time of year. Is there a short somewhere? Is my truck's computer trying to tell me something? Has anyone else ever experienced this problem?
This ad is not displayed to registered and logged-in members.
Register your free account today and become a member on Dodge Forums!
Reply With Quote
  #2  
Old 11-26-2013, 09:03 AM
MikeHTally's Avatar
MikeHTally MikeHTally is offline
Champion
 
Join Date: Aug 2007
Vehicle: 2003 1500 QCSB Hemi 4x2
Location: N. Florida
Posts: 4,429
Default

It's signalling to the aliens. Sounds like the headlight switch is not happy. I haven't looked at a headlight switch in a lot of years. If there is some access, you might be able to spritz the switch with some electronics cleaner.
__________________
2003 1500 QC Hemi

2006 Chrysler 300C
2008 1/2 Mazda Speed3
Reply With Quote
  #3  
Old 11-26-2013, 09:18 AM
hjens hjens is offline
Registered User
 
Join Date: Mar 2011
Posts: 9
Default

I've checked the headlight switch and the cargo light wheel switch and they both look fine, no corrosion. I'm wondering if the tail light circuit boards may be the problem, or the trailer plug, but why would the cargo light be affected by either one?
Reply With Quote
  #4  
Old 11-26-2013, 10:30 AM
kenneymc's Avatar
kenneymc kenneymc is offline
Veteran
 
Join Date: Jan 2007
Vehicle: 2003 Dodge Ram QC 4x4 Hemi
Posts: 343
Default

Need to find what is common to both, then get schematics and trace it out. To me, the only thing common to both is the brake switch. But then that would mean that the lights are on bright like you are braking. Is this occurring? Or are the tails on like you just had the parking lights on? How bout the third brake light? Lit up like the brakes are on? You could download service manual from Weedaho signature and started digging in to the wiring and try to trace it out.
__________________
2003 Dodge Ram Quad Cab Hemi 4x4. K&N FIPK CAI, Magnaflow Catback Exhaust, Diablo Sport Predator Tuner, Moto Metal 951 Rims, Bridgestone Dueler AT 265/70/17 Tires, Underhood LED Lights (courtesy of Dirty), Plasti Dipped Grill and Bumpers.
Reply With Quote
  #5  
Old 11-26-2013, 10:42 AM
hjens hjens is offline
Registered User
 
Join Date: Mar 2011
Posts: 9
Default

Looks to be the lowest tail lamp of the three on both sides, so it's not the brake lamp but the regular tail lamp.
Reply With Quote
  #6  
Old 11-26-2013, 01:46 PM
boopadoopa's Avatar
boopadoopa boopadoopa is offline
Professional
 
Join Date: Jul 2008
Vehicle: 2007 Ram Quad Cab 5.7 4X4
Location: Freedom Pa.
Posts: 236
Default

Had that happen to me one time. Turns out it was my trailer brake controller went bad..
__________________

2007 Patriot Blue Ram 1500 Hemi Quad cab
Big Horn Edition
Reply With Quote
  #7  
Old 11-26-2013, 07:08 PM
hjens hjens is offline
Registered User
 
Join Date: Mar 2011
Posts: 9
Default

Could be. I've got an electronic trailer brake in the truck and now and then it blinks "OC" -- some sort of signal that it's not working -- when no trailer is hooked up when a single red light should be on.
Reply With Quote
  #8  
Old 11-26-2013, 07:41 PM
gcburkett gcburkett is offline
Veteran
 
Join Date: Feb 2011
Vehicle: 2005 Ram 2500 Quad Cab 5.7 Hemi
Location: Chicago suburbs
Posts: 367
Default

Do you have an alarm system. They can turn lights on. Some of them will turn parking lights and the dome lights on when you unlock it. I don't have one on my truck but the car sort of works like that.
Reply With Quote
  #9  
Old 11-27-2013, 02:01 PM
boopadoopa's Avatar
boopadoopa boopadoopa is offline
Professional
 
Join Date: Jul 2008
Vehicle: 2007 Ram Quad Cab 5.7 4X4
Location: Freedom Pa.
Posts: 236
Default

Yea i would look out the window at night and my back lights were on? Found the brake controller to be bad and shorting out. Put in a new one and problem was solved.. No trailer was hooked up when this was happening.
__________________

2007 Patriot Blue Ram 1500 Hemi Quad cab
Big Horn Edition
Reply With Quote
Old 11-27-2013, 02:01 PM
 
 
 
Reply




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

Forum Jump

Join DodgeForum
Advertising

Featured Sponsors
Vendor Directory
Our Sponsors
All times are GMT -4. The time now is 05:13 AM.

Internet Brands, Inc.


Contact Details & Emails