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Powertrain Control Module: Installation

WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install the PCM (4) to the PCM mounting bracket (7), ensuring that the mounting tabs (3) are engaged. See Fig 1.
  2. Secure the spring latch (2) to the PCM.
  3. Connect the PCM connectors (6) to the PCM (4). Tighten the PCM connector end bolts to specification. See TORQUE SPECIFICATIONS .
  4. Install the PCM cover (8) to the PCM mounting bracket (7), ensuring the mounting tabs on the PCM mounting bracket are engaged into the mounting holes in the PCM cover.
  5. If a new PCM is being installed, program the EEPROM. See appropriate BODY CONTROL MODULES article in ACCESSORIES & EQUIPMENT.
Fig 1: Removing & Installing PCM
G00080090Courtesy of GENERAL MOTORS CORP.
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