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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 2002 (Hybrid Cooling System - 3.6L (Hp5)) >> Diagnostic Information and Procedures >> DTC P0A7E or P1ABE >> 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. Verify that DTC P0A81, P0A9C, P0A9D, P0A9E, P0AC6, P0AC7, P0AC8, P0ACB, P0ACC, P0ACD, P0AE9, P0AEA, P0A80, P0BBD, or P0AEB is not set.
  2. Ignition ON, observe the scan tool GBCM hybrid battery temperature parameters. The readings should be between -39 and +69°C (-40 and +156°F).
  3. Command the drive motor generator battery vent fan ON in all speed ranges with a scan tool. You should hear the vent fan relay softly click when turned ON and OFF. You should notice a change in fan speed as you increase the commanded speed. There is approximately a 5 second delay from when the battery vent fan speed is commanded before the vent fan speed changes.
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