Subaru Problems? Ask a Mechanic for Answers ASAP
So what eventually does get it running? Waiting, jump starting? Has the starter ever been replaced? Manual or automatic transmission?
I'm sorry. My internet is really acting up here at the shop. I'm going to try a reset and get back with you in a little bit if that's ok.
I think I'm back up and running. I'm sorry for the delay.
It's hard to say whether the problem is in the ignition switch or the starter. Your best bet would be to test for voltage at the starter when the problem is occurring. That way you know if the starter is the cause or the voltage stream to the starter is dropping somewhere. Is your mechanic good at electrical testing?
That sounds like a problem with the ignition switch not supplying voltage to the computer.
When key is turned to start position, the number 21 fuse in the interior fuse box energizes to indicate start command to the ECM. If there is a short to ground on that circuit, or the fuse isn't energizing then it won't let it start. I would first suspect the IG2 relay. Especially if you can hear a click and then it starts working. Here is the wiring schematic for the ignition system:
Somehow your last response dropped to my timed out list. I'm sorry I didn't see it until this recent response came through. I'll look up a diagram with the relay and send it over in a sec.
Let me know if you still need help with this.
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