Mike's Workshop Manuals: Service manuals for every vehicle
Home >> GMC >> 2020 >> Acadia SL >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Starting System And Charging System >> Diagnostic Information and Procedures >> DTC B1330 >> Circuit/System Verification

Circuit/System Verification

  1. Engine running, accessories OFF, measure and record the battery voltage at the C1 battery terminals. The voltage should be between 12.6 and 15.0 V.
  2. Engine running, observe the keyless entry control module scan tool Battery Voltage parameters. Verify that the scan tool displays a value that is within 2 V of the battery terminal voltage.