C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Skipping module 9 when checking codes

Old Feb 5, 2021 | 02:48 PM
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Default Skipping module 9 when checking codes

It runs through modules 1 and 4 but then skips 9 and goes back to 1.

Any idea why it's skipping that section? Clearly, it's the ABS stuff, but I'm hoping it's just a fuse under the hood some place.
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Old Feb 5, 2021 | 02:49 PM
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I jumped the two corners to check codes on the dash, btw. So A and G I think they are.
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Old Feb 7, 2021 | 05:15 PM
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I still need to figure this out if anyone has any ideas about why it's happening.

All I can think of is cracking open the ecm and giving it a good once over.

Really hoping I don't have to dig into the ccm. Ugh...

Last edited by Natty C; Feb 7, 2021 at 05:17 PM.
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Old Feb 7, 2021 | 05:28 PM
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Never mind, module 9 is only '94-'96.

'90-'91 only has modules 1 and 4. Which is what I have. To flash ABS codes, you have to short H to A and then the ABS light will flash those codes, if you have any.

'92-'93, module 7 is also displayed.

Thanks! Heh heh.

Last edited by Natty C; Feb 7, 2021 at 06:55 PM.
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Old Feb 7, 2021 | 06:29 PM
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Relevant reading...

​​​​​​https://www.corvettebuyers.com/c4vettes/codes.htm
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