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Home >> GMC >> 2022 >> Hummer EV >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Hybrid/EV Energy Storage - Diagnostic Information And Procedures (1 Of 2) >> Diagnostic Information and Procedures >> DTC P301E >> Circuit/System Verification

Circuit/System Verification

  1. Vehicle in Service Mode.
  2. Verify DTC P0D91 - P0D93, P1C2C, P1C2E, P1C2F, P3010, P3013, P3014, or P3027-P3029 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Vehicle OFF. Visually inspect the X98 Battery Charger Coupler and high voltage cables for damage.
    • The receptacle or cables are damaged 

      Replace the component: X98 Hybrid/EV Battery Charger Receptacle

    • Go to next step: The receptacle and cables are visually OK 
  4. Verify that DTC P301F does not set while operating the vehicle within the Conditions for Running the DTC.
    • If the DTC is set 

      Advise the customer to report a problem with the DC fast charge station.

    • Go to next step: If the DTC is not set 
  5. All OK.