To be sure, you'll need to:
* Consult a repair manual specific to your 1998 Chevy Lumina: This is the most reliable method. The manual will have diagrams and detailed instructions showing the location. You can often find these online or at auto parts stores.
* Use a vehicle-specific online diagram: Some online automotive parts websites (like AutoZone or Advance Auto Parts) allow you to enter your vehicle's details and view diagrams of its components, including the ABS module.
Important Note: Working with the ABS system can be complex and involves potentially hazardous high voltages. If you are not comfortable working on your car's electrical systems, it is highly recommended that you take it to a qualified mechanic.