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Home >> GMC >> 2008 >> Yukon Base, 4.8 C >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Hybrid Engine Control System) >> Diagnostic Information and Procedures >> DTC P1AFA >> Circuit/System Testing

Circuit/System Testing

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  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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