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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 U240D: Transmission Range Selector Control Module Powertrain Expansion CAN Bus Off >> Circuit/System Verification

Circuit/System Verification

  1. Ignition ON/Vehicle in Service Mode.
  2. Verify DTC U240D is not set.
    • If DTC U240D is set 

      Refer to DTC U0074 to diagnose powertrain expansion bus.

    • Go to next step: If DTC U240D is not set 
  3. All OK
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