Power Circuits
WARNING: This page is about a different car, the 2002 Ford Pickup and 2002 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Ensure compuvalve 64-pin connector is disconnected. Turn ignition on. Using DVOM, check for battery voltage between chassis ground and compuvalve VPWR terminals No. 2, 11 and 13. See Figure. If battery voltage is not present, power is not being supplied from bi-fuel relay module. Repair open in affected circuit or bi-fuel relay module as necessary. See WIRING DIAGRAMS article.