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Hello everyone, working on a family members pioneer 700 that wouldn't start last night. It cranks, but won't start. And the dash stays illuminated withoutthekey in it, with a flashing wrench light. 7 slow flashes, 3 quick. I tried searching for a 73 code, no luck most of the lists didn't go that high. Any suggestions on what else it could be or how to diagnose the codes? Thanks for the help!