PASSLOCK(tm) SYSTEM: Notes
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2002 GMC Savana, 2002 Chevrolet Chevy Express, 2001 GMC Savana Special, 2001 GMC Savana Camper Special, and 2001 GMC Savana. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If replacing Passlock(tm) module with a GM Service Parts Operations (SPO) replacement part, the module will learn Passlock(tm) sensor data code immediately. Existing PCM however, must learn the new fuel continue password when Passlock(tm) module is replaced. If replacing a PCM with a GM Service Parts Operations (SPO) replacement part, after programming, these modules will learn incoming fuel continue password immediately upon receipt of a password message. Once a password message is received, and a password is learned, a learn procedure must be performed to change this password again. A PCM which has been previously installed in another vehicle will have learned the other vehicle's fuel continue password and will require a learn procedure after programming to learn current vehicle's password. Use this procedure after replacing Passlock(tm) sensor, Passlock(tm) module or PCM.
NOTE:
There are 2 available methods to perform the programming procedure, a 10 minute procedure which requires a Tech 2 Scan tool and a Techline(R) terminal with current Service Programming System (SPS) software, and a 30 minute procedure which does not require the use of any tools.