Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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Does the engine turn over? Does it click when the key is in the start position?
Disconnect both battery cables (negative first then positive) and hold them together, and let it sit for 10 minutes. Reconnect battery cables one at a time, positive first then negative
You need a tech2 or similar capability scan tool to get codes out of the immobilizer and pcm. I would also scan all modules. You need codes to be able to diagnose the problem.
Check for voltage at the small wire on the starter with the key in start position.
Here is a wiring diagram for the starting circuit. Try jumping the starter solenoid, with key in run position, does the engine turn over?
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Also check all fuses in the wiring diagram that I sent to you.
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