DTC U0129: Lost Communication with Brake System Control Module [01/2019 - 11/2022]: Description
The ECM receives signals sent from the skid control ECU (brake actuator assembly) via the CAN communication system. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding ECU or sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory |
|---|---|---|---|---|---|
| U0129 | Lost Communication with Brake System Control Module | No communication between the ECM and skid control ECU (brake actuator assembly) for 2.22 seconds or more (1-trip detection logic) |
|
Does not come on | DTC stored |