Test Connector To VAPS Module
WARNING: This page is about a different car, the 1992 Ford Probe. However, it is still accessible from the selected car via links, so may be relevant.
Ensure PRC control module connector disconnected. Turn ignition on. Set VOM on 20-volt scale. Measure voltage between Blue/White wire and ground. If voltage reading is greater than zero volt, repair Blue/White wire between module and PRC test connector as necessary. If voltage is zero, proceed to PINPOINT TEST Q8.