Dodge 2003 Ram Van 3500 Canadian Vehicle Daytime running lights stopped working, checked fuses in and under hook, OK, changed black box DRL module, still no DRLs, I do not have a manual or wire diagram, what else should I check

SOURCE: running lights stop working 2002 dodge ram

This happened on my '05 2500 Dodge diesel last winter.After spending a full day checking wiring,fuses,relays and the headlight switch I determined the problem was with the (FCU) the front control unit which is mounted with 4 screws to the outward side of the fuse box.When i asked the dealer if they had one in stock they said they usually kept 6 on the shelf,so I figured if they stock this many then they must be a common problem.This unit cost a bit over $300.00. When i installed it I still had no front or rear park/running lights so I started to remount the fuse box and look for another problem and BINGO I felt the relay click and the lights came on,now I'm thinking did this unit need a few seconds to reset or was this just a flukie fix.Well the lights worked fine for 3 months and the same problem happened again.This time I installed my old FCU just to see if the new one went bad but still no lights,but as I was moving the fuse box around again I felt/heard the relay click and the lights came on.

So I took the fuse box out of the truck and completly dismantled it (dealer says a new one costs $700.00).These boxes snap together and then there are 3 points where the plastic is melted (studs) and these need to be drilled out to separate the top and bottom halves,then the box is easy to take apart.There is a printed circuit board inside that the FCU plugs into with about 40 small connectors and there is where the problem was.One of the lead circuits on the board had corroded and lost connection.I just soldered in a piece of jumper wire and that cured my problem although this probably could be repaired properly by someone with circuit board experience I was happy with my mickey mouse repair for now.

This may sound complicated but the fuse box can be removed from the truck in 10 minutes(honestly) it took me longer to make a sketch of the harness plug in locations than it did to remove the fuse box.Once you have the box out it takes about 20 minutes to drill the (3) plastic studs and split the top and bottom sections (there are no springs on ball bearings or other surprises to fly out as you separate the 2 parts) then if you don't feel you have the skills to check the board and do the repairs you can have an electronics shop do an inspection.

A couple of things that puzzled me while trying to find this problem was that the dash lights still worked,the chime that rings to tell you you have left your lights on still chimed even with only the park lights on,and there was no power at both park light fuses.

When i found out the price of these fuse boxes I automatically thought I'd get one cheap at the local junk yard..big surprise,they said they can't find enough of them to keep up with the demand and also said they often get calls from people saying that their fuse box burned up,so appearently there is a problem with dodge truck fuse boxes!! When I questioned the service manager at my dodge dealer about these things going bad he agreed and said they have replaced many of them.

Hope this helps and I didn't scare you too bad.

Randy in Nova Scotia

ray calhoun

• 166 Answers
• Posted on Apr 24, 2009

SOURCE: s there a special wrench required to pull off the

yes. try your tool dealers or tool rental

SOURCE: How to disable the daytime running lights 2004 Subaru Outback LLB

Sorry to inform you, but I have been trying to solve this problem for a customer of mine who is in the military. Subaru will not release any information on how to do this.

Dana Newcombe

• 1564 Answers
• Posted on Aug 25, 2009

SOURCE: Heater and a/c controls on my 1996 Dodge Ram Van 3500

There's a large black ball or bullet shaped black plastic cylinder called a vacuum collector under the hood. Check to make sure this is leak proof. to do so just run the motor/engine for a few minutes and pull one of the vacuum lines off from it. yuo should get a long hissing sound. If not relace the two vacuum lines. If you do hear the sound then....it gets a little tricky. BEHIND the climate control unit is a vacuum harness with several different colored lines all held together at the connection end. If you can get at this, pull radio, pull ashtray assy, you may find that it has slipped off the control unit. Check these steps in the order that I've given, it will save you alot of headaches. It might boil down to needing a new/ used climate con trol center. Thanks and good luck, Dana

SOURCE: LEFT TRAILER TURN SIGNAL DOES NOT WORK

I have seen once before that the fuse box was bad on a 2003 Dodge 3500. I had power in and nothing out. We had to replace the box. Not cheap! Hope it is simple like a loose connection though. I think I had to pull the inner fender on the drivers side to access the bottom of the fuse box. Pain in the ****, but...