PRC Control Module Grounds
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 NOT within specifications, repair Black wire between PRC control module and chassis ground, under front passenger seat near sill plate for opens, as necessary.