It's a long shot but doesn't that car have a multi-pin control module near the driver side dash under the hood? Pull that off, clean the contacts and make sure it seats correctly. If it's ever been removed, not reinstalling correctly could cause on board controls to blink. The module itself could be bad, the car won't start without it.

If it's not the control module then you need to reference the wiring diagram for the car. You may have a short to ground somewhere, possibly the negative terminal on battery is loose is first item to check, then find the wiring harness for your dash and check the ground wires for shorts.


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