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Suspension control module


E James

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After trial and error of finding out how to fix “service trailer brake system” code, I found the suspension control module to be the problem. I swapped with one from a different truck and code and message cleared. However, I could not keep that one and ordered a replacement. It is a different model number and when installed the message will not go away like it did before. Do these need programmed or do I need to order exact model number replacement?

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 I don't know the answer to that, but I know GM pretty well. I'd bet that it needs to be programmed to work.

 

And yes, you'd better be 400% sure you have the right part number, or you'll be yanking your hair out.

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On 6/30/2021 at 10:53 PM, Jsdirt said:

 I don't know the answer to that, but I know GM pretty well. I'd bet that it needs to be programmed to work.

 

And yes, you'd better be 400% sure you have the right part number, or you'll be yanking your hair out.

Thank you 

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