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 [01/2023 - ]: Description
The ECM 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 | DTC Output from |
|---|---|---|---|---|
| U0100 | Lost Communication With ECM/PCM "A" | When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more. |
|
Radar Cruise1 |
| U0104 | Lost Communication with Cruise Control Module | When the engine switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the millimeter wave radar sensor assembly and ECM is detected for approximately 1 second or more. |
|
Radar Cruise1 |
| U0122 | Lost Communication With Vehicle Dynamics Control Module | When the engine switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 3 seconds or more. |
|
Radar Cruise1 |