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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 >> Without Carbon Pile Tester

Without Carbon Pile Tester

  1. Vehicle ON.
  2. Verify the scan tool Hybrid Powertrain Control Module Ignition 1 Signal parameter continually increases when controlling the Hybrid Powertrain Control Module 14 V Power Module Setpoint from 10-80% with a scan tool. It may take up to 10 s for battery voltage to stabilize between each setpoint change.
    • If the battery voltage does not continually increase 

      Replace the K1 14V Power Module.

    • If the battery voltage continually increases 
  3. All OK.
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