Circuit/System Verification
- Measure and record the voltage at the battery terminals. Verify that the battery voltage is greater than 11 volts.
- If the battery voltage is less than the specified value, go to Charging System Test (Acadia or Enclave) or Charging System Test (OUTLOOK) .
- Verify that DTC B1424 is set as current.
- If DTC B1424 is history, refer to Diagnostic Aids .
- Refer to Circuit/System Testing .