Scan Tool: Notes
WARNING: This page is about a different car, the 1997 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
A variety of information is transmitted through Data Link Connector (DLC). This data is transmitted at a high frequency which requires a Tech 1 scan tool, appropriate cartridge kit and vehicle interface module kit, or other scan tool for interpretation. Several scan tools are available for diagnostic work. Scan tools other than Tech 1 scan tool will function and provide information for diagnostic work.
WARNING:
Vehicles may be equipped with a PCM using an Electronically Erasable Programmable Read Only Memory (EEPROM). When replacing PCM, the new PCM must be programmed.
NOTE:
To help save diagnostic time, ALWAYS check for blown fuses or fusible links before proceeding with any testing. If fuses are blown, locate and repair short circuit before replacing fuses. Ensure all related relay and wire harness connections are clean and tight. Repair as necessary.