Code 3
WARNING: This page is about a different car, the 1989 Ford Ranger, 1989 Ford Pickup, 1989 Ford Cab & Chassis, 1989 Ford Bronco II, and 1989 Ford Bronco. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect battery. Unplug control module connector. Measure resistance between module connector pin No. 8 and pin No. 14 and ground. If resistance is less than 3 ohms, replace control module. If resistance is 3 ohms or more, reconnect module connector.
- Unplug electro-hydraulic valve connector. Measure resistance between Yellow/Light Green wire and Black/White wire at valve. If resistance is less than 3 ohms, repair open in Yellow/Light Green wire between valve connector and control module. If resistance is 3 ohms or more, replace electro-hydraulic valve.