Circuit/System Verification
- Engine running measure and record the voltage at the battery terminals. Verify that the battery voltage is 12.6-15.5 volts.
- If the battery voltage is not within the specified range, refer to Charging System Test (Solstice) or Charging System Test (SKY) .
- Observe the scan tool ECM Ignition 1 Signal parameter. The reading should be between 12.6 and 15.5 volts.