Programming Varification
WARNING: This page is about a different car, the 2001 GMC Safari and 2001 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
- With a scan tool, clear DTCs. Then Attempt to start engine.
- Repeat Service Programming procedure if engine does not start or operates poorly. Perform following procedures before programming PCM:
- Ensure PCM and DLC connections are OK.
- Ensure Techline(R) operating software is up to date.
- Ensure calibration part number is correct for vehicle.
- Attempt to program PCM. If powertrain control module still cannot be programmed properly, replace PCM. See POWERTRAIN CONTROL MODULE under REMOVAL & INSTALLATION.