buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Relays and Modules - Fuel Delivery and Air Induction > < Engine Controls - Aftermarket Accessory Usage|Page 138
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Engine Control Module: Service and Repair

PCM

Powertrain Control Module (PCM)

REMOVE OR DISCONNECT:

1. Negative battery cable
2. Interior access panel
3. Connectors from PCM
4. Remove PCM from vehicle

NOTE:  To prevent possible electrostatic discharge damage to the PCM, DO NOT touch the connector pins or soldered components on the circuit
board.

INSTALL OR CONNECT:

1. New PCM
2. PCM connectors to PCM
3. Interior access panel
4. Negative battery cable

Relays and Modules - Fuel Delivery and Air Induction > < Engine Controls - Aftermarket Accessory Usage|Page 138