Circuit/System Testing

2006 Pontiac G6 GTP, 2D Coupe, StandardSECTION Circuit/System Testing
WARNING: This page is about a different variant/trim than selected.
  1. Test the 12-volt reference circuit of the CKP sensor for an intermittent condition.
  2. Test the low reference circuit for an intermittent condition.
  3. Test the CKP sensor signal circuit for an intermittent condition.
  4. Test for an intermittent and for a poor connection at the ECM.
  5. Test for an intermittent and for a poor connection at the CKP sensor.
  6. Remove the CKP sensor.
  7. Inspect the CKP sensor for the following conditions:
    • Physical damage
    • Excessive play or looseness
    • Improper installation
    • Foreign material passing between the CKP sensor and the reluctor wheel
    • Electromagnetic interference in the CKP sensor circuits
  8. Inspect the CKP reluctor wheel for the following conditions:
    • Physical damage
    • Excessive end play or looseness
    • Improper installation
  9. If all circuits and components test normal, replace the CKP sensor.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.