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Home >> Ford >> 2000 >> Excursion 7.3 F, 4WD >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Locking Hubs >> Four-Wheel Drive Systems (ESOF) - Excursion & F250-F550 Super Duty >> Trouble Shooting >> Symptom Diagnosis >> 4X4 Indicator Light Always On

4X4 Indicator Light Always On

Possible cause: ABS control module, wiring, instrument cluster and/or GEM. Perform TEST D  under DIAGNOSTIC TESTS.