Symptom Chart

WARNING: This page is about a different car, the 2013 Ford F-550 Super Duty, 2013 Ford F-450 Super Duty, 2013 Ford F-350 Super Duty, and 2013 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM CHART

Condition	Possible Sources	Action
No communication with the Transfer Case Control Module (TCCM)	Wiring, terminals or connectors Scan tool Data Link Connector (DLC) TCCM	CHECK the module communications network. REFER to MODULE COMMUNICATIONS NETWORK .
Rear wheels binding when turning corners with the Electronic Locking Differential (ELD) OFF	Wiring, terminals or connectors ELD field coil TCCM Rear differential	GO to PINPOINT TEST T .