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Powertrain Control Module Off Vehicle: Notes

NOTE: DO NOT program a control module unless you are directed by a service procedure or a General Motors Corporation service bulletin. Programming a control module at any other time will not permanently correct a customer's concern. The Off-Board Programming is used in situations where a control module must be programmed without having the vehicle present. The Off-board Programming Adapter (OBPA) must be used to perform the Off-Board Programming procedure. The adapter allows the control module to power up and allows the scan tool to communicate with the control module.
NOTE: DO NOT disturb the tool harnesses while programming. If an interruption occurs during the programming procedure, programming failure or control module damage may occur. Ensure that all connections are secure at the OBPA, scan tool, Powertrain Control Module (PCM) and the Techline(R) terminal.
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