DTC U0129-87: Lost Communication With Brake System Control Module Missing Message [06/2018 - 06/2021]: Description
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The TCM receives signals from the skid control ECU via CAN communication. When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before performing troubleshooting for each corresponding ECU or sensor.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| U0129-87 | Lost Communication With Brake System Control Module Missing Message | No communication between the TCM and skid control ECU (brake actuator assembly) for 2.4 seconds or more (1-trip logic) |
|
Does not come on | DTC stored | SAE Code: U0129 |