DTC U1104: Lost Communication with Driving Support ECU [09/2017 - 05/2019]: Description
The driving support ECU assembly is connected to the millimeter wave radar sensor assembly, forward recognition camera and skid control ECU (brake actuator assembly) via CAN communication. If communication with the millimeter wave radar sensor assembly, forward recognition camera or skid control ECU (brake actuator assembly) stops, the driving support ECU assembly stores DTC U1104.
| DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
| U1104 |
Lost Communication with Driving Support ECU |
Any of the following conditions is met:
- When the engine switch is on (IG), a communication error between the driving support ECU assembly and the millimeter wave radar sensor assembly is detected for approximately 0.2 seconds.
- When the engine switch is on (IG), a communication error between the driving support ECU assembly and the forward recognition camera is detected for approximately 0.3 seconds.
- When the engine switch is on (IG), a communication error between the driving support ECU assembly and the skid control ECU (brake actuator assembly) is detected for approximately 1.5 seconds.
|
- CAN communication system
- Millimeter wave radar sensor assembly
- Forward recognition camera
- Skid control ECU (brake actuator assembly)
- Driving support ECU assembly
- Harness or connector
- Forward recognition camera system
- Vehicle stability control system
|