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Home >> Buick >> 2012 >> LaCrosse Hybrid >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Control System >> Diagnostic Information and Procedures >> DTC P0A90 >> Circuit/System Testing

Circuit/System Testing

  1. If drive belt noise was noticed on an AutoStart, refer to Drive Belt Tensioner Diagnosis .
  2. Inspect the drive belt for cracks, wear and contamination.
    • If the belt is not OK, replace the drive belt.
  3. If the DTC resets, replace the A15 starter generator.