ABS Light On - 2007 Ford & Lincoln

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ABS LIGHT ON – VEHICLES BUILT BEFORE 2/15/2007

2007 Expedition and Navigator vehicles built before 02/15/2007 may experience an ABS light on and the base brake system continuing to function normally.

This may be due to corrosion in the connector of the rear wheel speed sensor.

ACTION:

Follow the Service Procedure steps to correct the condition as it may be necessary to replace the rear wheel speed sensor and the female side of the connector.

SERVICE PROCEDURE

Follow normal Workshop Manual (WSM) diagnostics. If the diagnostics lead to replacement of the rear wheel speed sensor, follow these steps to prevent water leaking into the connector.

Disconnect the rear wheel speed sensor connector.
Inspect the female terminals, on the harness side of the connector (C440 and C426).
If corrosion or evidence of water damage is present, replace the connector with wiring pigtail kit and follow the instruction sheet which is included.
Replace rear wheel speed sensor.