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REPAIR INSTRUCTIONS POWERTRAIN CONTROL MODULE (PCM) REPLACEMENT Service of the powertrain control module (PCM) should normally consist of either replacement of the PCM or z Remove any debris from the PCM connector surfaces before servicing the PCM. Inspect the PCM z The replacement PCM must be programmed. Removal Procedure Connector Part Information z 15336024 z 2-Way F GT 150 Sealed (BK) Pin Wire Color Circuit No. Function 1 PU/WH 821 VSS High Signal 2 L-GN/BK 822 VSS Low Signal IMPORTANT: To prevent internal PCM damage, the ignition must be OFF when disconnecting or reconnecting power to the PCM. For example, when 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
2004 Hummer H2 2004 ENGINE PERFORMANCE Engine Controls (Introduction) - 4.8L, 5.3L, and 6.0L - Hummer H2
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