LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 13 (Engine Controls - Removal, Overhaul & Installation) >> Computerized Engine Controls >> Powertrain Control Module >> Removal (4.0L)
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Removal (4.0L)

WARNING: This page is about a different car, the 2002 Oldsmobile Intrigue and 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

Record the Transaxle Fluid and Engine Oil Life Indexes from the Driver Information Center (DIC). Turn ignition off. Remove rear seat cushion to access battery. Disconnect the negative battery cable. Disconnect the Mass Airflow/Intake Air Temperature (MAF/IAT) sensor electrical connector. Loosen the intake air duct clamp at the throttle body. Loosen the air filter housing cover screws. Remove the air filter cover, the MAF/IAT sensor and the intake air duct. Disconnect both PCM connectors. Remove the PCM. See Figure.