Where is starter relay switch on 2007 dodge ram 3500?

The 2007 Dodge Ram 3500 doesn't have a separate, easily accessible "starter relay switch" in the same way some older vehicles did. The starting system is controlled by a combination of the ignition switch, computer modules (PCM), and the starter relay itself, which is usually integrated into a larger fuse/relay center.

You'll likely find the starter relay within the Power Distribution Center (PDC) or fuse box, often located under the hood. It's crucial to consult your owner's manual for the exact location and diagram of your PDC. The manual will show you the layout and identify the starter relay (often labeled).

Important Safety Note: Working on automotive electrical systems can be dangerous. Disconnect the negative battery cable before attempting any work on the PDC or electrical components. If you're not comfortable working with automotive electrical systems, it's best to take your truck to a qualified mechanic.