Last week, I changed my BCM on my Dakota and got my left headlight to work. Within 20 minutes after changing the BCM, the headlight went off and hasn't came back on. I've unplugged and plugged the connector to the BCM and checked ground but nothing. Is there anything else I should check because I'm running out of ideas.

 

In the engine bay fuse box there are two 20 amp brakers labeled CTM A and CTM B. Try swapping them and see if the bad light switches.
Reference this post for details:
https://dodgeforum.com/forum/2nd-gen...-a-dakota.html

 

I did that just now and the only headlight that's working is my right

 

Since the light switched sides then it means you have a bad breaker. Order yourself a new one and your good to go.

 

Okay I'll let you know how that goes. I appreciate it.