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Home >> Chevrolet >> 2013 >> Volt >> Repair and Diagnosis >> Electrical >> Charging Systems >> Plug-In Charging >> Diagnostic Information and Procedures >> DTC P1EF3-P1EF5 >> Circuit/System Verification

Circuit/System Verification

  1. Verify that no hybrid electronics coolant system DTC is set.
    • If DTC is not set 
  2. Verify the hybrid/EV electronics cooling system is functioning properly. Refer to Hybrid/EV Electronics Cooling Diagnostic .
    • If the hybrid/EV electronics cooling system is not functioning properly 

      Repair the fault.

    • If the hybrid/EV electronics cooling system is functioning properly 
  3. Replace the T18 Battery Charger.