3rd Gen Ram Tech2002-2008 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.
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?
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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.
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?
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.
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.
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