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Home › Chevrolet › 2014 › Volt › Repair and Diagnosis › Hybrid/Electric Powertrain › Electric Converters and Controllers › Hybrid/EV Control System › Diagnostic Information and Procedures › DC Power Conversion Test › Circuit/System Testing

Circuit/System Testing

  1. Vehicle OFF.
    NOTE: You must perform the Circuit/System Verification before proceeding with Circuit/System Testing.
  2. Connect a carbon pile tester to the C1 Battery.
  3. Vehicle ON, turn all accessories off. Observe the voltage reading on the tester and the Hybrid Powertrain Control Module Low-Voltage Circuit Voltage parameter in the 14V Power Module data list. The voltage should read between 12.6-15.5V.
  4. Adjust the carbon pile tester so that the Hybrid Powertrain Control Module Low-Voltage Circuit Current parameter in the 14V Power Module data list is reading 160 A.
  5. Verify the voltage reading remains between 12.6-15.5V.
    • If not within the specified range 

      Replace the K1 14V Power Module.

    • If within the specified range 
  6. All OK
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