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Home >> GMC >> 2022 >> Terrain SLT, FWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC C1201 >> Conditions for Setting the DTC

Conditions for Setting the DTC

Serial Data=Message Counter Incorrect - Between the following control modules:

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