Do you have your battery voltage at the (+) side of the coil when everything is in the "normal" state? The (-) side of the coil is the 'switched' side of the circuit, so the (+) side is 'hot'. This should be a red/black wire.

If you don't have battery voltage there, you will need to find out where you are losing it. From what I see on the schematic, Fuse #5 is the supply for that circuit, so you might want to check that.

If you don't have power to that fuse, then the next step back for that circuit is the ignition switch. The switch assembly has 3 parts, the lock core, the wheel immobilizer, and the electrical switch. The switch is a replacable unit. It's a bit of a process to change out, but it is doable.

Given the age of the car, the switch may have gone out on you. Otherwise, you will need to look for wiring problems, such as bad connectors, pinched/scraped wires, or loose connections.

Follow the link in abiby's post to the schematic to get a better idea of the wiring.

Hope this helps,
Scott

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