Code 9 - High Sensor Resistance
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 1988 Ford Pickup, 1988 Ford Cab & Chassis, 1988 Ford Bronco II, 1988 Ford Bronco, and 1987 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- Unplug sensor connector at differential. Check resistance between sensor terminals. If resistance is over 2500 ohms, replace sensor. If resistance is 1000-2500 ohms, reconnect sensor connector. Unplug computer module connector.
- Check resistance between terminals No. 3 and 10. If resistance is 1000-2500 ohms, replace computer module. If resistance is over 2500 ohms, repair wire between sensor and computer module. ALWAYS use high flex wire from manufacturer.