DTC U0104-87: Lost Communication with Cruise Control Module Missing Message; DTC U012287: Lost Communication with Vehicle Dynamics Control Module Missing Message; DTC U029387: Lost Communication with Hybrid Powertrain Control Module Missing Message [10/2018 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
The hybrid vehicle control ECU communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Note |
|---|---|---|---|---|---|---|
| U010487 | Lost Communication with Cruise Control Module Missing Message | When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the millimeter wave radar sensor assembly and hybrid vehicle control ECU is detected for approximately 1 second or more. |
|
Does not come on | Cruise Control | SAE Code: U0104 |
| U012287 | Lost Communication with Vehicle Dynamics Control Module Missing Message | When the power switch is on (IG) and the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 2.6 seconds or more. |
|
Does not come on | Cruise Control | SAE Code: U0122 |
| U029387 | Lost Communication with Hybrid Powertrain Control Module Missing Message | When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake booster with master cylinder assembly) and hybrid vehicle control ECU is detected for approximately 1 second or more. |
|
Does not come on | Cruise Control | SAE Code: U0293 |