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Home >> Chevrolet >> 1999 >> Blazer 2D Utility, 4WD, Part Time, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Removal & Installation - Trucks >> Computerized Engine Controls >> Powertrain Control Module (Pcm) >> Installation
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Powertrain Control Module (Pcm): Installation

NOTE: On all models except 1.6L and 2.0L, after installation of a NEW PCM, Malfunction Indicator Light (MIL) will remain on until PCM is programmed.

On 4.3L, 5.0L, 5.7L and 7.4L, install knock sensor module in NEW PCM. Install access cover. On all models, install PCM into vehicle. Connect harness connectors to PCM. Reconnect negative battery cable. If NEW PCM has been installed, PCM MUST BE programmed. See 2000 COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.

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