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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1691 (Hybrid Controls - DTC P181C To DTC P2792) >> DTC P1AFB or P1B01 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF.
  2. Wait 2 minutes.
  3. Disconnect PIM connector X1.
  4. Ignition OFF.
  5. Wait 2 minutes.
  6. Reconnect PIM connector X1.
  7. Ignition ON, retest for DTC P1AFB or P1B01.
    • 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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