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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 P1AF4-P1AF7 >> Circuit/System Testing

Circuit/System Testing

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.
    NOTE: DTC P1AE7 must test and pass before performing this diagnostic procedure.
  1. Inspect for DTC P1AE7.
    • If the DTC has set, a loss of isolation condition within the hybrid battery has caused this DTC to set. Refer to DTC P1AE7 .
  2. Ignition ON, retest for DTCs P1AF4, P1AF5, P1AF6 and P1AF7.
    • If the DTC resets, program the PIM with the latest software version and recheck for DTCs. If the DTC resets after programming or if the PIM already contains the latest software version, replace the PIM.
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