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Home >> GMC >> 2018 >> Terrain SL >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System - Diagnostic Information And Procedures (U183A To U3012) And Symptoms >> Diagnostic Information And Procedures >> DTC U18AA: Transmission Range Control Module Lost Communication With Engine Control Module >> Repair Instructions

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair.

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