PRC Control Module Grounds
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.
Leave PRC control module connector disconnected. Set VOM on 200-ohm scale. Measure resistance between 2 Black wires (near center of connector) and ground. If resistance is less than 5 ohms, proceed to PINPOINT TEST Q4. If resistance is 5 ohms or more, repair Black wire between PRC control module and chassis ground, under front passenger seat near sill plate for opens, as necessary.