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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1855 (Hybrid Cooling System) >> Diagnostic Information and Procedures >> DTC P0A06 or P0A07 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

P0A06

  1. Ignition OFF, disconnect the harness connector at the SGCM coolant pump.
  2. Ignition ON, verify that a test lamp illuminates between the control circuit terminal 1 and ground.
    • If the test lamp is always ON, test the control circuit for a short to voltage. If the circuit tests normal, replace the SGCM.

P0A07

  1. Ignition OFF, disconnect the harness connector at the SGCM coolant pump.
  2. Ignition ON, verify that a test lamp illuminates between the B+ circuit terminal 2 and control circuit terminal 1.
    • If the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the SGCM.
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