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Home >> Chevrolet >> 2017 >> Volt Premier >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System - DTC U1817 To DTC U3012 And Scan Tool Symptoms >> Diagnostic Information and Procedures >> DTC U1845 or U1846: Drive Motor Control Module Lost Communication with Hybrid Powertrain Control Module >> Circuit/System Verification
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Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify that DTC U0293 is not set.
    • If DTC U0293 is not set 
  3. Verify that DTC U1845 or U1846 is not set current only in the K114A Hybrid Powertrain Control Module 1.
    • If any of the DTCs are set 

      Replace the T6 Power Inverter Module.

    • If none of the DTCs are set 
  4. All OK.
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