Possible problems that might *feel* like a fuel pump issue but aren't a simple reset include:
* Low fuel: The most common cause of a car not starting is simply being out of gas.
* Bad fuel pump relay: This is an easily replaceable part.
* Faulty fuel pump: This requires replacement.
* Clogged fuel filter: This needs replacing.
* Electrical issues in the fuel pump circuit: A mechanic will need to diagnose this.
* Security system issues: The car's security system could be preventing the fuel pump from activating.
If your 2000 Chrysler 300M isn't starting or running properly, you'll need to have a qualified mechanic diagnose the problem. Attempting to "reset" something that doesn't exist could lead to wasted time and potentially further damage.