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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1932 (Hybrid Energy Storage System - 3.6L (Hp5)) >> Diagnostic Information and Procedures >> Drive Motor Generator Battery Noise >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, command the hybrid drive motor battery fan and pump ON and OFF with a scan tool. The fan or pump should not make objectionable noise. Some noise is considered normal.
  2. Ignition ON, command the HV contactors ON and OFF with a scan tool one at a time. The contactors should not make objectionable noise. Some noise is considered normal.
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