DRL module on Dodge caravan sport 2001?

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Bootsie

New member
When I start my van I only have one running light on the drivers side, when I turn on my headlights, I lose the drivers side and get the passenger side, when I turn on the high beams I go back to the drivers side and lose the passenger side? Any ideas as to where the module is or could it be something else? Appreciate anyone that can help. Thank you.
 
OK Bootsie. on that particular vehicle the daytime running lamp system cannot cause the problem you described.
You are most likely looking at a Forward Control Module problem.
The FCM recieves a low beam or high beam request and then powers the left and right low or high beams using individual circuits.
Check you fuses. I cant remember which years but some models had individual fuses for left and right low and high beams. If the fuses are good it's likely the FCM. Problem is it's very hard to diagnose because it plugs directly to the fromt of the integrated power module (underhood fuse block). so when you separate it it's unplugged and theres no way to test circuits. I have known good modules in my toolbox to test most vehicles that used an FCM. But that doesnt help you much either.
You can buy one and risk being wrong, or take it to the dealer to confirm diagnosis.
Best of luck!
 
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