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Home › Buick › 2006 › Rendezvous CX, 3.5 L, AWD › Repair and Diagnosis › Engine Performance › System › Engine Controls - 3.5L - Introduction (2 Of 2) › Repair Instructions › Powertrain Control Module (PCM) Replacement › Removal Procedure

Removal Procedure

IMPORTANT: It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 km (3,000 mi) from the last engine oil change.
    Fig 1: Identifying Battery & Powertrain Control Module (PCM)
    GM1544730Courtesy of GENERAL MOTORS CORP.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure .
  3. Remove the left diagonal brace. Refer to Brace Replacement - Front Fender Upper Diagonal - Left .
  4. Remove the air cleaner assembly cover (1) and lift the PCM (2) from the air cleaner assembly (3).
  5. Disconnect the engine harness electrical connectors (4) from the PCM.
  6. Remove the PCM.
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