DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0104: Lost Communication with Cruise Control Module; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; 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 [08/2019 - ]: Description
The driving support ECU assembly communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | Condition 1:
Condition 2:
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Condition 1:
Condition 2:
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| U0104 | Lost Communication with Cruise Control Module | While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the ECM and the driving support ECU assembly is detected for approximately 1 second or more. |
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| U0122 | Lost Communication with Vehicle Dynamics Control Module | While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the ECM and the skid control ECU (master cylinder solenoid) is detected for approximately 2.6 seconds or more. |
|
| U0125 | Lost Communication with Yaw Rate Sensor Module | While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the yaw rate sensor (center airbag sensor assembly) and the driving support ECU assembly is detected for approximately 1 second or more. |
|
| U0126 | Lost Communication with Steering Angle Sensor Module | While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the steering sensor and the driving support ECU assembly is detected for approximately 1 second or more. |
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| U0129 | Lost Communication with Brake System Control Module | While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, a communication error between the skid control ECU (master cylinder solenoid) and the driving support ECU assembly is detected for approximately 1 second or more. |
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