Where is the auto shutdown relay on 2007 dodge caliber?

There isn't a single component called an "auto shutdown relay" in the way you might be thinking on a 2007 Dodge Caliber (or most modern cars). The engine shutdown process is controlled by a complex system involving the Powertrain Control Module (PCM), various sensors (crankshaft position sensor, etc.), and the ignition system itself. There's no one relay that directly handles this function.

If you're experiencing an issue with the car unexpectedly shutting down, it's likely due to a problem within this system, rather than a single faulty relay. Possible causes include:

* Faulty PCM: The main computer controlling the engine.

* Sensor problems: A failing sensor (like the crankshaft position sensor) can send incorrect information to the PCM, leading to shutdown.

* Electrical problems: Wiring issues, short circuits, or problems within the ignition system.

* Fuel system issues: Problems with the fuel pump, fuel filter, or fuel injectors.

To diagnose the problem, you'll need to have the vehicle scanned with a diagnostic tool that can read the PCM's trouble codes (OBD-II scanner). A qualified mechanic can interpret these codes and pinpoint the cause of the shutdown. Trying to find a specific "auto shutdown relay" is unlikely to be productive.