High beam headlights

Asked by GuruHKF9G Jul 29, 2019 at 02:50 PM about the 2014 RAM 1500 Laramie Crew Cab 4WD

Question type: Maintenance & Repair

My low beams and fog lights work but not my high beams..
also ECO in green letters on my instrument panel hasn't
been coming up. I've checked the switch and bulbs.

1 Answer
27,460

oilyspill answered 5 years ago

As far as head lamps, the bcm monitors the headlamp switch for activity. Based on that activity, the bcm sends voltage to headlamp assembly for whichever lamp. I saw 6 trouble codes relating to headlamps. Two were U codes. Four were p1 codes. At the least, use a code reader that will work with your vehicle and read manufacturer specific codes. If you find a code, post it. Hopefully me or somebody, can help you with the code? Note the diagram, the top wires above lamp assembly are voltage, the bottom black wires in diagram are grounds. You need voltage and ground. At the moment, I can't tell you exactly where the problem is located? What I posted is just my opinion.

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