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Powertrain Control Module: Installation

WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the new PCM from the packaging and inspect the service number to verify the number is the same number, or an updated number, as the faulty PCM. Slide the PCM into the PCM bracket. The retaining tab will lock in place.
  2. Install the PCM harness connectors and lock down the release levers.
  3. Connect the negative battery cable.
  4. Program the PCM. See SERVICE PROGRAMMING SYSTEM  under PROGRAMMING.
  5. Perform Crankshaft Position (CKP) system variation learn procedure. See CKP SYSTEM VARIATION LEARN PROCEDURE  under PROGRAMMING.


  1. Remove the new PCM from the packaging and inspect the service number to verify the number is the same number, or an updated number, as the faulty PCM.
  2. Slide the PCM into the PCM bracket. See Figure .
  3. Connect the PCM electrical connectors.
  4. Tighten the PCM connector screws. See Figure . Tighten the PCM connector screws to specification.
  5. Program PCM.
  6. Install the left closeout/insulator panel.
  7. Connect the negative battery cable.
  8. Program the PCM. See SERVICE PROGRAMMING SYSTEM  under PROGRAMMING.
  9. The replacement PCM will NOT allow secondary Air Injection (AIR) pump operation until a total of 10 miles have accumulated.
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