Where is the safety shut off for a 2003 Pont Aztek

There is no safety shut off switch .First off you say it still won't crank , I'm assuming you mean it won't start an run . If you turn the key to the start position an the engine spins ,that is referred to as the engine cranks . You have a no crank - no start or engine cranks - no start . A fuel pump would have nothing to do with a no - crank -no start problem . If the engine is cranking an not starting check for spark at spark plugs . Is there a security light lit on the instrument cluster ? a anti-theft system problem will cause a crank - no start problem . A short on the five volt reference circuit will cause a crank - no start . A shorted map sensor , shorted TP - throttle position sensor