Circuit/System Verification
- Verify DTC C0900 is set as current.
- If the DTC is history, refer to Charging System Test (Solstice) or Charging System Test (SKY) .
- Start the engine, record the voltage at the battery terminals. Observe the scan tool EBCM battery voltage signal parameter. Voltages should not differ by more than 2 volts
- If not within the specified range, replace the EBCM.