Circuit/System Verification
- Engine running measure and record the voltage at the battery terminals. The battery voltage is 12.6-15.5 V.
- If the battery voltage is not within the specified range, refer to Charging System Test
- Observe the appropriate control module scan tool Battery Positive Voltage parameter. The reading should be between 12.6 and 15.5 V.
- If not within the specified range, replace the appropriate control module.