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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1979 (Hybrid Controls - 3.6L (Hp5) - DTC P16F9 To DTC P2797) >> DTC P1B0F or P1B10 >> 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. Observe the BECM Contactor Sys. Req. Signal parameter. The HV contactor relays should be Closed, enabling the high voltage system.
    • If the HV contactor relays are Open, diagnose and repair the DTCs which are preventing high voltage from being enabled.
  2. Ignition OFF, wait 2 minutes.
  3. Ignition ON, wait 2 minutes and then turn ignition OFF.
  4. Ignition ON, monitor DTC Status. DTC P1B10 and P1B0F should have passed last test.
    • If the DTC has passed, clear DTC Information. No further diagnosis of this DTC is necessary.
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