Lucerne V6-3.8L VIN 2 (2006)
Engine Control Module: Service and Repair
POWERTRAIN CONTROL MODULE (PCM) REPLACEMENT
REMOVAL PROCEDURE
IMPORTANT:
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It is necessary to record the remaining engine oil life. If the powertrain control module (PCM) is not programed with the remaining engine oil life,
the engine oil life will default to 100%. If the replacement PCM 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 oil change.
-
It is necessary to record the remaining automatic transaxle fluid life. If the replacement PCM is not programed with the remaining transaxle fluid
life, the transaxle fluid life will default to 100%. If the replacement PCM is not programmed with the remaining transaxle fluid life, the transaxle
fluid will need to be changed at 83000 km (50,000 mi) from the last transaxle fluid change.
1. Using a scan tool, retrieve the percentage of remaining engine oil and automatic transaxle fluid life. Record the remaining engine oil and transaxle
fluid life.
2. Ensure that the ignition is in the OFF position.
3. Disconnect the negative battery cable.
4. Remove the intake manifold cover.
5. Disconnect the engine harness electrical connector from the mass air flow/intake air temperature (MAF/IAT) sensor.
