Symptom Table

WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM TABLE

Condition	Possible Sources	Action
Blind Spot Information System (BLIS™) is inoperative/does not operate correctly or poor performance and no message center warning message or warning LED indicators present	Wiring, terminals and connectors BLIS™ is not configured on with the scan tool Instrument Panel Cluster (IPC) Side Obstacle Detection Control Module - Left (SOD-L) Side Obstacle Detection Control Module - Right (SOD-R) Vehicle speed signal	Go To PINPOINT TEST A .
The Cross Traffic Alert (CTA) system is inoperative/does not operate correctly or poor performance and no warning LED indicators present	Wiring, terminals and connectors CTA system is not configured on with the scan tool IPC Parking Aid Module (PAM) SOD-L SOD-R Vehicle speed signal	Go To PINPOINT TEST B .
The exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LED does not illuminate when the tone sounds for the Cross Traffic Alert (CTA) system	Wiring, terminals and connectors PAM SOD-L SOD-R Vehicle speed signal	Go To PINPOINT TEST B .
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	Wiring, terminals and connectors SOD-L SOD-R Exterior mirror BLIS™ /CTA LED	Go To PINPOINT TEST I .
The left or right exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LED is constantly on with no DTC or message in the Instrument Panel Cluster (IPC) message center present	Wiring, terminals and connectors SOD-L SOD-R Exterior mirror BLIS™ /CTA LED	Go To PINPOINT TEST D .
The left or right exterior mirror Blind Spot Information System (BLIS™)/Cross Traffic Alert (CTA) LED is constantly on and a message in the Instrument Panel Cluster (IPC) message center is present, but no DTCs are recorded	Wiring, terminals and connectors SOD-L SOD-R	Go To PINPOINT TEST C .
The SOD-L does not respond to the scan tool	Wiring, terminals and connectors SOD-L SOD-R	REFER to INSPECTION AND VERIFICATION to diagnose the module communication network.
The Side Obstacle Detection Control Module - Right (SOD-R) does not respond to the scan tool or cannot be configured	Wiring, terminals and connectors SOD-R	Go To PINPOINT TEST E .
The Instrument Panel Cluster (IPC) message center displays a blocked sensor message	Dirt, ice, or snow covered rear bumper fascia quarter panel SOD-L SOD-R	Go To PINPOINT TEST F .
The Blind Spot Information System (BLIS™) or the Cross Traffic Alert (CTA) system cannot be turned off in Instrument Panel Cluster (IPC) message center	Wiring, terminals and connectors IPC	Go To PINPOINT TEST G .