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
- Engine running, observe the scan tool EBCM System Voltage parameter.
- Verify the scan tool parameter displays a value that is within 2 volts of the battery terminal voltage.