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Home >> Chevrolet >> 2003 >> SSR LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 5.3L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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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%. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5000 km (3,000 mi) from the last engine oil change.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Disconnect negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  3. Open the hood
  4. Reposition powertrain control module (PCM) water boot aside.
  5. Remove PCM from bracket.
  6. Disconnect electrical from PCM and remove PCM.
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