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Home >> GMC >> 2022 >> Hummer EV >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Hybrid/EV Energy Storage - Diagnostic Information And Procedures (2 Of 2) >> Diagnostic Information and Procedures >> DTC U2BBA-U2BD1 >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify that no DTCs are set.
    • Go to next step: If no other DTCs are set 
  3. Observe and record the following battery energy control module parameters for the CMA that set the DTC (s):
    • Hybrid/Electric Vehicle Battery Interface Control Module (1-24) Battery Pack Location
    • Hybrid/Electric Vehicle Battery Interface Control Module (1-24) MAC Address
  4. Refer to: Circuit/System Testing
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