DTC U0100-87: Lost Communication With ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0103-87: Lost Communication with Gear Shift Control Module "A" Missing Message; DTC U0125-87: Lost Communication With Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0131-87: Lost Communication With Power Steering Control Module Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0151-87: Lost Communication with Restraints Control Module Missing Message [11/2021 - ]: Description
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2025 Lexus NX 350, 2025 Lexus NX 250, 2024 Lexus NX 350, 2024 Lexus NX 250, and 2023 Lexus NX 350. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU (brake actuator assembly) communicates with the following ECUs and sensors via CAN communication.
- ECM
- TCM (ECM)
- Yaw rate and acceleration sensor (airbag sensor assembly)
- Steering angle sensor
- Power steering ECU (rack and pinion power steering gear assembly)
- Main body ECU (multiplex network body ECU)
- Airbag sensor assembly
- Shift control ECU (transmission floor shift assembly)
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from | Priority |
|---|---|---|---|---|---|
| U0100-87 | Lost Communication With ECM/PCM "A" Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals cannot be sent to the ECM for 2 seconds or more. |
|
Brake/EPB | B |
| U0101-87 | Lost Communication with TCM Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals cannot be sent to the TCM (ECM) for 2 seconds or more. |
|
Brake/EPB | B |
| U0103-87 | Lost Communication with Gear Shift Control Module "A" Missing Message | When the voltage at terminal +BS is 9.6 V or more, data cannot be received from the shift control ECU (transmission floor shift assembly) for 5 seconds or more. |
|
Brake/EPB | B |
| U0125-87 | Lost Communication With Multi-axis Acceleration Sensor Module Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals from the yaw rate and acceleration sensor (airbag sensor assembly) cannot be received for 1 second or more. |
|
Brake/EPB | B |
| U0126-87 | Lost Communication with Steering Angle Sensor Module Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals from the steering angle sensor cannot be received for 1 second or more. |
|
Brake/EPB | B |
| U0131-87 | Lost Communication With Power Steering Control Module Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, data cannot be received from the power steering ECU (rack and pinion power steering gear assembly) for 1 seconds or more. |
|
Brake/EPB | B |
| U0140-87 | Lost Communication with Body Control Module Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, data cannot be received from the main body ECU (multiplex network body ECU) for 2 seconds or more. |
|
Brake/EPB | B |
| U0151-87 | Lost Communication with Restraints Control Module Missing Message | The +BS terminal voltage is between 9.6 and 16.5 V, the vehicle speed is 6 km/h (4 mph) or more, and signals from the airbag sensor assembly cannot be received for 5 seconds or more. |
|
Brake/EPB | B |