Symptom Chart

Diagnostics in this service information assume a certain skill level and knowledge of Ford-specific diagnostic practices. Refer to DIAGNOSTIC METHODS for information about these practices.

SYMPTOM CHART

Condition	Possible Sources	Action
BLIS® is inoperative/does not operate correctly	Refer to the Diagnostic Routine	GO to PINPOINT TEST A .
BLIS® has poor performance	Refer to the Diagnostic Routine	GO to PINPOINT TEST A .
BLIS® has no message center warning message and the exterior mirror BLIS®/CTA LED is not illuminated	Refer to the Diagnostic Routine	GO to PINPOINT TEST A .
The CTA system is inoperative/does not operate correctly or poor performance and no warning LED indicators present	Refer to the Diagnostic Routine	GO to PINPOINT TEST B .
The CTA system has poor performance	Refer to the Diagnostic Routine	GO to PINPOINT TEST B .
The CTA system has no message center warning message and the exterior mirror BLIS®/CTA LED is not illuminated	Refer to the Diagnostic Routine	GO to PINPOINT TEST B .
The exterior mirror BLIS®/CTA LED does not illuminate when the tone sounds for the CTA system	Refer to the Diagnostic Routine	GO to PINPOINT TEST B .
An exterior mirror BLIS®/CTA LED is constantly on	Refer to the Diagnostic Routine	GO to PINPOINT TEST I .
The left or right exterior mirror Blind Spot Information System (BLIS®)/Cross Traffic Alert (CTA) LED appears dim or does not illuminate with no DTC or message in the Instrument Panel Cluster (IPC) message center present	Refer to the Diagnostic Routine	GO to PINPOINT TEST D .
The left or right exterior mirror BLIS®/CTA LED is constantly on and a message in the IPC message center is present, but no DTCs are recorded	Refer to the Diagnostic Routine	GO to PINPOINT TEST C .
The SOD-L does not respond to the scan tool	Wiring, terminals and connectors SOD-L	REFER to MODULE COMMUNICATIONS NETWORK , The SOD-L Does Not Respond To The Scan Tool Or The SOD-R Does Not Respond To The Scan Tool.
The SOD-R does not respond to the scan tool or cannot be configured	Refer to the Diagnostic Routine	GO to PINPOINT TEST E .
The IPC message center displays a blocked sensor message	Refer to the Diagnostic Routine	GO to PINPOINT TEST F .
The BLIS® or the CTA system cannot be turned off in the IPC message center	Refer to the Diagnostic Routine	GO to PINPOINT TEST G .