Where is the PCM driver circuit located on a 1995 Chevy G20 van?

The PCM (Powertrain Control Module) itself, which houses the driver circuits for various components, is not located in a single easily accessible "circuit" but rather is a single integrated unit. In a 1995 Chevy G20 van, the PCM is typically located under the dashboard, on the passenger side. However, the exact location can vary slightly depending on the specific van configuration and options.

To find it, you'll likely need to:

* Consult your vehicle's repair manual: This is the best source for the precise location in your specific van.

* Look for a large, rectangular black box: The PCM is usually a relatively large electronic control unit.

* Look for wiring harnesses: It will have numerous wiring harnesses connected to it.

* Check near the firewall: This is a common area for many automotive control modules.

Remember that working with the PCM requires caution. It's a sensitive electronic component, and improper handling can damage it. If you're not comfortable working on automotive electronics, it's best to have a qualified mechanic perform any necessary repairs or diagnostics.