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Home >> Pontiac >> 2001 >> Grand Am GT1 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Body Control Modules >> Self-Diagnostic System >> Powertrain Control Module Diagnostic System Check (2.4L) >> Notes

Powertrain Control Module Diagnostic System Check (2.4L): Notes

NOTE: The presence of DTCs which begin with "U" indicate some other module on class 2 serial data line is not communicating.