LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2003 >> Century Base >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transaxle Diagnosis - 4T65-E >> Removal & Installation >> Powertrain Control Module >> Installation
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Powertrain Control Module: Installation

  1. Install the PCM to the PCM electrical connectors. Tighten the connectors to specification. See TORQUE SPECIFICATIONS  .
  2. Install the PCM and the wiring harness to the air cleaner housing assembly (3).
  3. Install the air cleaner housing cover (1). See Fig 1 .
  4. Install the air cleaner housing cover screws (2). Tighten the screws to specification. See TORQUE SPECIFICATIONS  .
  5. Install the air cleaner intake duct.
  6. Install the left front inner fender brace.
  7. Connect the negative battery cable.
  8. The new PCM must be programmed. See appropriate article in ENGINE PERFORMANCE.
Fig 1: Removing & Installing PCM
G00075716Courtesy of GENERAL MOTORS CORP.