DTC U1002: Lost Communication with Gateway Module (Sensor Bus); DTC U0235: Lost Communication with Cruise Control Front Distance Range Sensor [09/2014 - 11/2017]: Description
- The driving support ECU assembly will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 13.
- When the driving support ECU assembly receives a response signal from the ECUs connected to sub bus 13, the driving support ECU assembly recognizes and memorizes that the ECU is connected to sub bus 13. Based on this memorized data, the driving support ECU assembly monitors for malfunctions in the ECUs connected to sub bus 13 when communicating with those ECUs. If the driving support ECU assembly cannot receive response signals from the ECUs that have been memorized as those connected to sub bus 13, the driving support ECU assembly determines that a malfunction exists.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| U0235 | Lost Communication with Cruise Control Front Distance Range Sensor | No communication from the Millimeter Wave Radar Sensor Assembly continues. |
|
HINT: The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13. |
| U1002 | Lost Communication with Gateway Module (Sensor Bus) | The driving support ECU assembly cannot receive signals from all ECUs that have been memorized as those connected to sub bus 13. |
|
HINT: The driving support ECU assembly stores DTCs when it detects a communication stop or network communication error for ECUs connected to sub bus 13. |
HINT:
The diagnostic procedure is for when DTC U1002 is output by the driving support ECU assembly (Techstream display: Pre-Collision 2).