Starter Woes, Stumped - Starter Won't Work Options

[Mblizzard]

So my car won't start using the the key. Replaced the switch at the ignition but all I hear is the relay on the fuze panel click. Swapped relays and no change. Have push button wired in that works fine so I know all of the mechanical and electrical connections are good at the starter.

What am I missing?

[Dave_Darling]

Check for voltage at the yellow wire that plugs into the starter. Should have at least 9V when you turn the key to "start". If you don't have that, start going back up the wire to find where it disappears. It goes from the starter to the relay board, through the board (also splits off in there to go to the fuel injection) to the main wiring harness, the main harness may (depending on year) go to the Dreaded Seatbelt Interlock Relay under the passenger's seat, to the ignition switch, and from there back through the main wiring harness to the battery.

The circuits will usually fail where pieces join together, or inside electrical components (e.g., the relay or the ignition switch).

--DD