Where is the drl control module located on a 1990 GMC Safari?

The DRL (Daytime Running Lights) control module on a 1990 GMC Safari is typically located under the dashboard on the driver's side. It can be found near the steering column or mounted to the vehicle's fuse box. For easier access, you may need to remove some panels or covers. Always consult the vehicle's service manual for specific details and diagrams.