Symptom Chart

WARNING: This page is about a different car, the 2013 Ford Mustang. 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 Body Control Module B (BCM-B)	Fuse Medium Speed Controller Area Network (MS-CAN) BCM-B	REFER to MODULE COMMUNICATIONS NETWORK .
All stoplamps are inoperative	Wiring, terminals or connectors Stoplamp switch Body Control Module B (BCM-B)	GO to PINPOINT TEST I .
One or more stoplamps are inoperative	Wiring, terminals or connectors Rear lamp jumper harness LED lamp High mounted stoplamp BCM-B	GO to PINPOINT TEST J .
The stoplamps are on continuously	Wiring, terminals or connectors Stoplamp switch BCM-B SJB PCM	GO to PINPOINT TEST K .