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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 U35B1 >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle On - Service Mode
  2. Verify DTC U2BFC is not set.
    • If the DTC is set 

      Maintain post-crash 50-foot vehicle isolation and contact GM Technical Assistance before attempting any further inspection, operation or interaction with the vehicle.

    • Go to next step: If the DTC is not set 
  3. Verify no other DTCs are set.
    • Go to next step: If no other DTCs are set 

      Go to next step: Refer to: Circuit/System Testing

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