Keep in mind that the OP is saying it "won't turn over", so this implies a starter motor related problem. If the starter motor has been checked out as OK, then it's an electrical supply problem to the starter motor or the solenoid. My bet is the ignition switch.
Check for solenoid activating voltage at the wire attached to the small spade connector on the starter motor solenoid (the thinner wire attached to the top of the solenoid). If there is no voltage at this wire when attempting to crank the engine then it's likely a fault in the ignition switch (note that this means the electrical switch operated by the key barrel, not the barrel itself).
To further test, if you take this wire off the solenoid you can connect a test wire from the male spade connector on the solenoid directly to battery +, if the engine cranks then this confirms that the solenoid and starter motor are OK. Note that if you do this the engine will crank regardless of whether or not the car is in gear or in 'park' or neutral, so make doubly certain the car is not in gear (or 'D' or 'R').
Check for solenoid activating voltage at the wire attached to the small spade connector on the starter motor solenoid (the thinner wire attached to the top of the solenoid). If there is no voltage at this wire when attempting to crank the engine then it's likely a fault in the ignition switch (note that this means the electrical switch operated by the key barrel, not the barrel itself).
To further test, if you take this wire off the solenoid you can connect a test wire from the male spade connector on the solenoid directly to battery +, if the engine cranks then this confirms that the solenoid and starter motor are OK. Note that if you do this the engine will crank regardless of whether or not the car is in gear or in 'park' or neutral, so make doubly certain the car is not in gear (or 'D' or 'R').
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