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Home >> Chevrolet >> 2015 >> 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 >> With Carbon Pile Tester

With Carbon Pile Tester

  1. Vehicle OFF.
  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 Ignition 1 Signal parameter in the 14 V Power Module data list. The voltage should read between 12.6-15.5 V.
  4. Adjust the carbon pile tester so that the Hybrid Powertrain Control Module Low-Voltage Circuit Current parameter in the 14 V Power Module data list is reading 160 A.
  5. Verify the voltage reading remains between 12.6-15.5 V.
    • If not within the specified range 

      Replace the K1 14 V Power Module.

    • If within the specified range 
  6. All OK
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