DTC U1104: Lost Communication with Driving Support ECU [04/2018 - 08/2021]: Description
WARNING: This page is about a different variant/trim than selected.
The driving support ECU assembly sends vehicle speed and vehicle condition information to the millimeter wave radar sensor assembly. The millimeter wave radar sensor assembly then sends information on the presence, distance, and relative speed of objects in front of the vehicle to the driving support ECU assembly. The driving support ECU assembly sends this information to the hybrid vehicle control ECU and the hybrid vehicle control ECU operates the dynamic radar cruise control system.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL |
|---|---|---|---|---|
| U1104 | Lost Communication with Driving Support ECU | While the vehicle speed is 5 km/h (3 mph) or more and the dynamic radar cruise control system is operating, a communication error between the driving support ECU assembly and the millimeter wave radar sensor assembly is detected for approximately 1 second. | Pre-collision system | Does not come on |