Blind Spot Information System (BLIS®) and Cross Traffic Alert (CTA) Message Center Function
NOTE: Cross Traffic Alert (CTA) system faults may not be detected until the transmission is placed in reverse.
NOTE: The BLIS® and Cross Traffic Alert (CTA) system menus in the message center are not available when a MyKey® restricted key is in use.
The Blind Spot Information System (BLIS®) can be turned off by using the blind spot on/off function in the message center. When the Blind Spot Information System (BLIS®) has been turned off by the driver or if a system fault is present, the Blind Spot Information System (BLIS®) RTT in the message center remains on. When turning the system on or off, the exterior mirror Light Emitting Diodes (LEDs) flash 2 times. When the Blind Spot Information System (BLIS®) is turned off, the driver cannot receive any alerts. The system remains off until turned back on by the driver.
The Cross Traffic Alert (CTA) system can be turned off by selecting the Cross Traffic Alert (CTA) system on/off function in the message center. The system defaults to on with each ignition cycle.
There are some system faults that set Diagnostic Trouble Codes (DTCs) in the SODL or SODR. These Diagnostic Trouble Codes (DTCs) can set a message in the IPC message center that displays BLIND SPOT SYSTEM FAULT and/or CROSS TRAFFIC SYSTEM FAULT. There are also symptom based faults that do not set a DTC.
Blocked Sensor
NOTE: Blockage sensing becomes active after the wipers are activated.
NOTE: A blocked state is not a system fault. A blocked state is a normal mode of operation under blocked conditions.
An excessive build-up of materials on the rear bumper sides, such as mud or snow, can cause the Blind Spot Information System (BLIS®) or Cross Traffic Alert (CTA) system functionality to degrade. Heavy rain can have the same affect on the system. If a blocked state is detected, the SODL and SODR blockage sensing senses the performance degradation and enters the SODL and SODR into a blocked state. The performance degradation means alerting late on targets or additional missed targets. Upon entering a blocked state, the SODL and/or SODR send a status message over the MS-CAN to the GWM. The GWM then sends the message to the IPC on the HS-CAN3. The message center displays BLIND SPOT NOT AVAILABLE SENSOR BLOCKED or CROSS TRAFFIC NOT AVAILABLE SENSOR BLOCKED and the LH and RH exterior mirror Blind Spot Information System (BLIS®)/ Cross Traffic Alert (CTA) Light Emitting Diodes (LEDs) illuminate.
The message center warning can be cleared by the driver, but the amber Blind Spot Information System (BLIS®) RTT in the IPC remains illuminated. A blocked state will self clear when blockage sensing senses performance has returned to normal operation. The ignition can also be cycled off to clear the blocked state. However, if the blockage is still present after the ignition cycle, after some drive time the system detects again that it is blocked. The blocked sensor message is displayed again in the message center and the amber Blind Spot Information System (BLIS®) RTT in the IPC is illuminated again.
Due to the nature of radar technology, it is possible to get a blocked sensor warning without the radar sensor being blocked. This is rare and is known as a false blockage warning. A false blocked condition either self-clears or clears after an ignition cycle.
Component Description
SODL / SODR
The SODL and SODR are radar based sensors that are located rearward of the rear wheel under the bumper cover. These sensors detect targets for the Blind Spot Information System (BLIS®) and Cross Traffic Alert (CTA) system. The modules are capable of storing Diagnostic Trouble Codes (DTCs) for the Blind Spot Information System (BLIS®) or Cross Traffic Alert (CTA) system when a concern exists. The SODL and SODR communicate through the MS-CAN.
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.