Service Programming System: Notes
WARNING: This page is about a different car, the 2003 Pontiac Grand Am and 2003 Oldsmobile Alero. However, it is still accessible from the selected car via links, so may be relevant.
After replacing PCM or if program needs to be updated, refer to latest Techline information on PCM reprogramming. Before programming a PCM, the following must be observed, or PCM damage may occur:
- The Tech 2 and the terminal must have the latest software.
- The vehicle battery must be fully charged. The battery voltage should be 12-14 volts.
- The Tech 2 and the terminal cable connections must be secure.
- A battery charger must NOT be connected to the battery when programming a PCM.