DTC U0100: Lost Communication with ECM / PCM "A"; DTC U0129: Lost Communication with Brake System Control Module; DTC U0142: Lost Communication with Body Control Module "B" [09/2014 - 10/2018]: Description
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Lexus RC 350, 2018 Lexus RC 300, 2017 Lexus RC 350, 2017 Lexus RC 300, and 2017 Lexus RC 200t. However, it is still accessible from the selected car via links, so may be relevant.
These DTCs are stored when the CAN communication system is malfunctioning.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0100 | Lost Communication with ECM / PCM "A" | Lost communication with ECM | CAN communication system |
| U0129 | Lost Communication with Brake System Control Module | Lost communication with brake actuator assembly (skid control ECU) | CAN communication system |
| U0142 | Lost Communication with Body Control Module "B" | Lost communication with main body ECU (multiplex network body ECU) | CAN communication system |