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Home >> Chevrolet >> 2018 >> Bolt EV Premier >> Repair and Diagnosis >> Electrical >> Charging Systems >> Plug-In Charging System >> Diagnostic Information and Procedures >> DTC P302F (Dubai) >> Circuit/System Verification

Circuit/System Verification

  1. Verify that DTC P0AA1, P0AA4, P0AD9, P0ADD, P0AE2, P0AE4, P0D0A, P0D11, P1EBC, P1EBE-P1EC0, P1EC3-P1EC5, P1AF0, P1AF4, P1AF5, P1E1B-P1E1F, P1E20-P1E22, P1B0B, P1B0C, P3002, P3003, P3005, P3006, P3015, P3018, P301B-P301F, P3020, P3021, or P3022 is not set.
    • Go to next step: If none of the DTCs are set 
  2. Remove all vehicle chargers.
  3. Vehicle ON.
  4. Observe the scan tool hybrid powertrain control module 2 DC Negative Supply Isolation Voltage parameter. The reading should be 0 V.
    • If greater than 0 V 
      NOTE:

      The following setup steps MUST BE PERFORMED EXACTLY in order to exercise the contactors.

    1. Vehicle OFF. Turn ON the park lamps.
    2. DO NOT press the power button and enter Vehicle in Service Mode or Vehicle ON.
    3. NOTE:

      There are two contactor control functions available on the scan tool. Make sure you select the DC charging contactor control and not the battery contactor control.

    4. Command the Hybrid/EV Battery DC Charging Contactors ALL OPEN with a scan tool.
    5. NOTE:

      Ignore P0ABC after pulling the S15 Manual Service Disconnect.

    6. Disconnect the S15 Manual Service Disconnect.
    7. DO NOT use the scan tool Release Control button to turn OFF any of the contactors. Once the scan tool Release Control button is pushed the Circuit/System Verification will need to be restarted from the beginning including reinstalling the S15 Manual Service Disconnect and clearing DTCs.
    8. Command the Hybrid/EV Battery DC Charging Positive Contactor CLOSED and ALL OPEN with a scan tool while listening for the contactor to open.
    9. NOTE:

      It is normal for the charging contactors to only make noise while opening.

    10. Verify the Hybrid/EV Battery DC Charging Positive Contactor is heard opening.
      • If the Hybrid/EV Battery DC Charging Positive Contactor operation cannot be heard, refer to Circuit/System Testing, Hybrid/EV Battery DC Charging Positive Contactor.
      • Go to next step: If the Hybrid/EV Battery DC Charging Positive Contactor operation is heard
    11. Refer to Circuit/System Testing, Hybrid/EV Battery DC Charging Negative Voltage Sensor.
    • Go to next step: If 0 V 
  5. Observe the scan tool hybrid powertrain control module 2 DC Positive Supply Isolation Voltage parameter. The reading should be 0 V.
    • If greater than 0 V 
      NOTE:

      The following setup steps MUST BE PERFORMED EXACTLY in order to exercise the contactors.

    1. Vehicle OFF. Turn ON the park lamps.
    2. DO NOT press the power button and enter Vehicle in Service Mode or Vehicle ON.
    3. NOTE:

      There are two contactor control functions available on the scan tool. Make sure you select the DC charging contactor control and not the battery contactor control.

    4. Command the Hybrid/EV Battery DC Charging Contactors ALL OPEN with a scan tool.
    5. NOTE:

      Ignore P0ABC after pulling the S15 Manual Service Disconnect.

    6. Disconnect the S15 Manual Service Disconnect.
    7. DO NOT use the scan tool Release Control button to turn OFF any of the contactors. Once the scan tool Release Control button is pushed the Circuit/System Verification will need to be restarted from the beginning including reinstalling the S15 Manual Service Disconnect and clearing DTCs.
    8. Command the Hybrid/EV Battery DC Charging Positive Contactor CLOSED and ALL OPEN with a scan tool while listening for the contactor to open.
    9. NOTE:

      It is normal for the charging contactors to only make noise while opening.

    10. Verify the Hybrid/EV Battery DC Charging Positive Contactor is heard opening.
      • If the Hybrid/EV Battery DC Charging Negative Contactor operation cannot be heard, refer to Circuit/System Testing, Hybrid/EV Battery DC Charging Negative Contactor.
      • Go to next step: If the Hybrid/EV Battery DC Charging Negative Contactor operation is heard
    11. Refer to Circuit/System Testing, Hybrid/EV Battery DC Charging Positive Voltage Sensor.
    • Go to next step: If 0 V 
  6. Refer to Circuit/System Testing, DC Charging System Isolation Fault.