L2 Check RF Brake Sensor Coil Resistance at Module Connector

- Key Off.

- Install 60-pin breakout box and the correct Econoline 4WABS overlay.

- Measure resistance between Pins 8 and 34.

- Is reading greater than 3000 ohms?

YES -- High resistance detected. Go to L3 to determine fault location.

NO -- Go to L4.