DTC U0129: Lost Communication with Brake System Control Module; DTC U0073: Control Module Communication Bus "A" Off; DTC U0155: Lost Communication with Instrument Panel Cluster (IPC) Control Module; DTC U0293: Lost Communication with Hybrid/EV Powertrain Control Module [11/2018 - ]: Description
These DTCs are stored when the clearance warning ECU assembly cannot receive and recognize several signals via the CAN communication line.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Control Module Communication Bus "A" Off | Control module communication bus off | CAN communication system |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with the skid control ECU (brake booster with master cylinder assembly) | CAN communication system |
| U0155 | Lost Communication with Instrument Panel Cluster (IPC) Control Module | Lost communication with the combination meter assembly | CAN communication system |
| U0293 | Lost Communication with Hybrid/EV Powertrain Control Module | Lost communication with the EV control ECU | CAN communication system |
HINT:
When 2 or more DTCs starting with "U" are output simultaneously, inspect the connectors and wire harnesses of each ECU.