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Old 07-03-09, 12:06 AM
warreng1947 warreng1947 is offline
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Cadillac(s): 03 cts
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What does SDM stand for?

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I have an 03 CTS with an error code U1088C. The code stands for "loss of communication with SDM". Can anyone here tell me what SDM stands for and what I need to do to fix the problem.