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I have a DTC codes P1571 ASR (Acceleration Slip Regulation) Desired Torque code and a U1040 Loss of communication with TCS(Traction Control Module) On my 2002 C5 convertable. Any ideas on how to troubleshoot down to the problem would be greatly appreciated. I have shop manuals and if anyone could point me in the right direction I would be very greatful. I hate to take it to the dealer just yet. THANKS!
R. C.