DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U1104-87: Lost Communication with Driving Support ECU Missing Message; DTC U114A-87: Lost Communication with Sub Battery System Missing Message; DTC U1184-87: Lost Communication with Advanced Drive Control Module Missing Message [11/2021 - 10/2023]: Description
WARNING: This page is about a different car, the 2024 Lexus LS 500h, 2023 Lexus LS 500h, and 2022 Lexus LS 500h. However, it is still accessible from the selected car via links, so may be relevant.
These DTCs are output if a malfunction occurs in the CAN communication system connected to the spatial information service ECU assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0101-87 | Lost Communication with TCM Missing Message | Communication between the spatial information service ECU assembly and the hybrid vehicle control ECU is lost for approximately 6 seconds or more | CAN communication system | Spatial Information Service |
| U0129-87 | Lost Communication with Brake System Control Module "A" Missing Message | Communication between the spatial information service ECU assembly and the skid control ECU assembly is lost for approximately 1 second or more | CAN communication system | Spatial Information Service |
| U0155-87 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message | Communication between the spatial information service ECU assembly and the combination meter assembly is lost for approximately 5 seconds or more | CAN communication system | Spatial Information Service |
| U1104-87 | Lost Communication with Driving Support ECU Missing Message | Communication between the spatial information service ECU assembly and the driving support ECU assembly is lost for approximately 6 seconds or more | CAN communication system | Spatial Information Service |
| U114A-87 | Lost Communication with Sub Battery System Missing Message | Communication between the spatial information service ECU assembly and the multi power control ECU assembly is lost for approximately 1 second or more | CAN communication system | Spatial Information Service |
| U1184-87 | Lost Communication with Advanced Drive Control Module Missing Message | Communication between the spatial information service ECU assembly and the advanced drive ECU assembly is lost for approximately 5 seconds or more | CAN communication system | Spatial Information Service |