Where is the wiring harness located on a 1994 GMC Vandura 2500 van?

The wiring harness on a 1994 GMC Vandura 2500 van is typically located under the dashboard, running along the driver and passenger sides. It also extends to the engine compartment, where it connects to various components like the engine, transmission, and lighting systems. Additionally, some harness sections may be routed to the rear of the van for tail lights and other features. Always refer to the vehicle's service manual for specific diagrams and details.