DTC U1002: Lost Communication with Gateway Module (Network Gateway ECU) [09/2015 - ]: Description
- The network gateway ECU stores this DTC when no signals can be received from the ECUs that have been memorized as those connected to the V2 bus circuit.
- When the network gateway ECU receives a response signal from the ECUs connected to the V2 bus circuit, the network gateway ECU recognizes and memorizes that the ECU is connected to the V2 bus circuit. Based on this memorized data, the network gateway ECU monitors for malfunctions in the ECUs connected to the V2 bus circuit when communicating with those ECUs. If the network gateway ECU cannot receive response signals from the ECUs that have been memorized as those connected to the V2 bus circuit, the network gateway ECU determines that a malfunction exists.
- If 2 or more DTCs are output during the DTC check, one side of the CAN branch wire may be open (one side of the CANH [CAN branch wire]/CANL [CAN branch wire] of the ECU and/or sensor is open).
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| U1002 | Lost communication with gateway module (V2 bus) |
|
- For vehicle with a parking assist monitor system (for camera built-in ECU).