Where is the ignition module on a 1999 Buick park avenue?

The 1999 Buick Park Avenue's ignition module isn't a single, easily identifiable component like in older cars. The ignition control function is integrated into the Powertrain Control Module (PCM), also sometimes called the Engine Control Module (ECM).

This PCM is usually located under the hood, often near the firewall or on the passenger side. It's typically a large, black rectangular box with many connectors. However, you should not attempt to work on the PCM yourself unless you are a qualified mechanic. It's complex, and improper handling can cause serious damage.

If you're experiencing ignition problems, it's best to take your Buick to a qualified mechanic for diagnosis and repair. They have the tools and expertise to correctly identify and fix the issue, whether it is the PCM, a related sensor, or something else entirely.