No Crank no start

[Ken226]

Thanks for reporting back that you found the problem. It might help others in the future.

As far as that yellow lever, did you find out what exactly it doe?

AI says it's this:

AI Overview



Based on common forum discussions regarding 2012 Ram 1500 trucks, a small
yellow button or lever located under the steering column is typically not a factory-installed component.
It is most commonly identified as an aftermarket tracker or alarm system, often a starter kill switch installed by dealerships or third parties.

• Function: It is generally used to set the alarm system or act as a security tracker.
• Location: Under the steering column/dashboard area, sometimes wired to be visible, other times hidden under the plastic.
• Action: If it has a light, it is designed to notify potential intruders that the vehicle is alarmed.

It's described in post# 6, way up above

















A tip for using AI to search for something like that. Upload a picture and the AI has a better time searching. For example, I uploaded the OP's original pic. This one:


And I asked Google Gemini, "What is the 2012 ram 2500 part shown in this pic?". Here is it's reply: