DTC U0125: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U0129: Lost Communication with Brake System Control Module; DTC U0293: Lost Communication with HV ECU [10/2015 - 08/2019]: Description
The driving support ECU assembly uses the millimeter wave radar sensor assembly to detect obstacles in front of the vehicle. Based on signals from the millimeter wave radar sensor assembly, the driving support ECU assembly sends pre-collision system control operation signals. These DTCs are stored when a communication malfunction occurs between ECUs that perform pre-collision control.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0125 | Lost Communication with Yaw Rate Sensor Module | When the power switch is on (IG), a communication error between the yaw rate sensor assembly and the driving support ECU is detected for approximately 1 second. |
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| U0126 | Lost Communication with Steering Angle Sensor Module | When the power switch is on (IG), a communication error between the steering sensor and the driving support ECU assembly is detected for approximately 4 seconds. |
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| U0129 | Lost Communication with Brake System Control Module | When the power switch is on (IG), a communication error between the skid control ECU assembly and the driving support ECU assembly is detected for approximately 3 seconds. |
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| U0293 | Lost Communication with HV ECU | When driving the vehicle at a speed of 5 km/h (4 mph) or more, a communication error between the hybrid vehicle control ECU assembly and the driving support ECU assembly is detected for approximately 5 seconds. |
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