DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0122: Lost Communication with Vehicle Dynamics Control Module; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module; DTC U1104: Lost Communication with Driving Support ECU [08/2013 - ]: Description
The ECM communicates several signals with each sensor and ECU by CAN communication circuit.
If there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0100 | While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a communication cut off signal from the driving support ECU for more than a specific amount of time, the ECM records this communication cut off code |
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| While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a communication cut off signal from the skid control ECU for a certain amount of time, the ECM records this communication cut off code |
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| U0122 | While dynamic radar cruise control is either preparing for operation or operating, if communication data from the skid control ECU is invalid for a certain amount of time, the ECM records the communication cut off code |
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| U0123 | While the dynamic radar cruise control is either preparing for operation or operating, the ECM continuously receives a yaw rate and acceleration sensor malfunction signal for a certain amount of time |
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| U0126 | While the dynamic radar cruise control is either preparing for operation or operating, if the ECM continuously receives a steering sensor communication error signal for a certain amount of time, the driving support ECU sends a signal to the ECM to record this trouble code |
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| U1104 | While dynamic radar cruise control is either preparing for operation or operating a communication stop between the driving support ECU and ECM for a certain amount of time. |
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