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Home >> Cadillac >> 2016 >> ELR >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communication System - DTC U183C To DTC U2615 And Diagnostic Information And Procedures >> Diagnostic Information and Procedures >> DTC U2602: Battery Energy Control Module Lost Communication with Hybrid/EV Powertrain Control Module 2 >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify that DTC U0073, U0074, U0078, U007A, U1814, B1325, B1330, B1370, B1380, B1424, B1428, B1440, B1441, B1517, C0800, C0899, C12E1, P0560, or P0562 is not set.
    • If none of the DTCs are set 
  3. Refer to Circuit/System Testing.
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