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Old 04-06-2024   #1
BlackroseZ
 
Join Date: Jun 2023
Location: Austin, Texas
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Default Code 12 Issue

If I've learned correctly the cycling of code 12 means there's no codes to report however I still have a abs and asr light. I recently changed my cam position sensor and my brake position sensor on the master cylinder. What am I forgetting? That's not much to go off but any clues who be appreciated
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Old 04-15-2024   #2
G8nightman
 
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Default Re: Code 12 Issue

check your level on brake fluid even if it looks full add some.
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Old 04-16-2024   #3
XfireZ51
 
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Default Re: Code 12 Issue

Code 12 is an ECM self test. ABS and ASR codes are from CCM.
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Old 04-17-2024   #4
secondchance
 
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Default Re: Code 12 Issue

Not knowing what year, I can't tell whether you have 12 pin or 16 pin ALDL connector.
Below article should help with your diagnosing the problem.
I can't immagine cam position sensor being related but wheel speed sensor replacement may be related.
https://tech.corvettecentral.com/201...trouble-codes/
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