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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 149 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P1AFA >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. 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. Wait 2 minutes.
  5. Reconnect the PIM connector X1.
  6. Ignition ON, retest for DTC P1AFA.
    • 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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