The skid control ECU (brake actuator assembly) sends signals indicating the status of the electronically controlled brake system to the forward recognition camera via CAN communication.
If the forward recognition camera receives an electronically controlled brake system malfunction signal from the skid control ECU (brake actuator assembly), it will store this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U041881 | Invalid Data Received from Brake System Control Module Invalid Serial Data Received | When the ignition switch is ON for 3 seconds or more, the forward recognition camera receives electronically controlled brake system malfunction signal from the skid control ECU (brake actuator assembly) for 1 second or more. | ·
Electronically controlled brake system ·
Forward recognition camera |
When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and a DTC may be stored.
If the forward recognition camera has been replaced with a new one, forward recognition camera adjustment must be performed.
Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.
One Time Recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>ADJUSTMENT (ONE TIME RECOGNITION)201902,201906,_51,_078884,_0384728,RM100000001GI2G,201906,202208,_51,_078884,_0384728,RM100000001IUI2,202208,999999,_51,_078884,_0384728,RM1000000024I1G,
Sequential Recognition: Click hereEngine / Hybrid System>CRUISE CONTROL>FRONT CAMERA>ADJUSTMENT (SEQUENTIAL RECOGNITION)201902,201906,_51,_078884,_0384728,RM100000001GI2H,201906,202208,_51,_078884,_0384728,RM100000001IULT,202208,999999,_51,_078884,_0384728,RM1000000024I1H,
Using the GTS, check for electronically controlled brake system DTCs.
If DTC U041881 is output by the pre-collision system, perform troubleshooting for the electronically controlled brake system.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTCs are output | B |
A
B