ECM Replacement

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WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

If the engine control module (ECM) is replaced, the following procedures must be performed:

  1. ECM Reprogramming-Refer to Service Programming System (SPS) .
  2. Crankshaft Position (CKP) Variation Learn-Refer to Crankshaft Position System Variation Learn .
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When to See a Mechanic

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

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