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My fellow Corvette friends, I am hoping that someone can help me out. I’m getting a code P0410C and P0418HC
Secondary air injection pump relay control circuit from the PCM module. It just started popping up with the check engine light coming on when I clear it. The check engine light goes off and then randomly will come back on and give me the same code sometimes HC and sometimes just a C. Any advice or recommendation on how to fix or clear permanently would be greatly appreciated thank you my fellow Corvette friends.
If you don’t have a factory level or equivalent aftermarket scan tool and some electrical skills diagnosing this may be difficult since this may involves a few parts… this isn’t a blown fuse.
2003 C5 codes
