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Home >> Buick >> 2019 >> Encore Base >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery, Charging System And Starting System >> Diagnostic Information and Procedures >> DTC B151A >> Circuit/System Verification

Circuit/System Verification

  1. Ignition - On/Vehicle - In Service Mode
  2. Verify DTC P0621 or P0622 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Refer to:Battery Inspection/Test 
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