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Powertrain Control Module: Removal

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Release the PCM cover mounting holes (1, 5) away from the mounting tabs on the PCM mounting bracket. See Figure.
  2. Release the PCM cover (8) from the mounting bracket.
  3. Remove the PCM cover.
    4. CAUTION: Do not touch the connector pins or soldered components on the circuit board to prevent possible electrostatic discharge damage to the PCM.
  4. Disconnect the PCM harness connectors (6).
  5. Release the spring latch (2) from the PCM.
  6. Release the PCM mounting tabs (3) from the PCM.
  7. Remove the PCM (4) from the engine compartment.
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