I am in hopes someone on can help with this problem I am having with my 01 Dakota. With key off and after the interior lights time out .... I click the dome light on and it pulsates ... dim to bright. I am also having a problem with battery drain after th truck sits for 3 day and it has a new battery. I have unhooked the CTM and it stays charged. While checking the system for a draw I also get the pulsating on the test light. Is this a sign of a bad CTM? also if so can I buy a salvage CTM without having any programing done to it? Thanks in advance for any help ..

 

Moving this to 2nd gen dakota section.

 

It's likely the CTM, it controls the interior lights.
If you replace the CTM you'll need to see a dealer to get your RKE to work. You'll lose all the remotes.