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Home >> Pontiac >> 2001 >> Aztek Base, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Body Control Modules >> Self-Diagnostic System >> Engine CONTROLSDIAGNOSTIC System Check >> Notes

Engine CONTROLSDIAGNOSTIC System Check: Notes

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