F2 Check Proper Valve Resistance at Control Module Connector

- Install 60-pin breakout box. Make sure the correct Econoline 4WABS overlay is installed.

- Measure valve resistance between 60-pin breakout box Pins 31 and 37.

- Was resistance measured between 1-3 ohms and Code C1210 or C1212 obtained in Step F1?

YES -- Go to F3.

NO -- Less than 1 ohm and Code C1212 was obtained. Low resistance detected. Go to F5 to determine fault location.

Greater than 3 ohms and Code C1210 was obtained. High resistance detected. Go to F5 to determine fault location.