2nd Gen Non-Engine/Transmission Daytime running light module 1999 Dodge 2500 Diesel

[Gerrits]

The daytime running lights work when the park lights are on but do not work on low beams. The high beam indicator is lit when the low beams are on ( altho' dimly) and it is lit when the high beams are on (brighter). I am assuming that the daytime running light module has failed and I have searched my service manual and it says that the module is to be found on the drivers side fender well. I have looked all over and have found nothing that resembles the DRL module that I purchased. I would like someone to tell me where it is at so that I can replace it and correct the problem. If it does not have one, then I would like a few suggestions as to what is causing the lights to operate like they do.

 

[B.G. Smith]

The USA trucks didn't come with DRL and I believe that the headlights were illumanated with lower than 12 volts for the DRL, not the fog lights. The fog lights are wired to only work when park lights or low beams are on. If you have a bright box type hook up you may have a bad diode causing the problem. With the factory wiring set up the fogs can be made to work with high beams by disconnecting a wire at the headlight switch. There were writeups on here a few years back about how to do it. bg