DTC U1000: CAN Communication Failure (Message Registry) [06/2018 - ]: Description
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus ES 300h, 2023 Lexus ES 300h, 2022 Lexus ES 300h, 2021 Lexus ES 300h, and 2020 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
The headlight ECU sub-assembly LH or headlight ECU sub-assembly RH stores this DTC if it detects an internal malfunction related to the CAN communication system.
FOR LED TYPE TURN SIGNAL LIGHT
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly LH | AFS |
FOR LED TYPE TURN SIGNAL LIGHT
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly RH | AFS (Sub) |
FOR BULB TYPE TURN SIGNAL LIGHT
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly LH | HL AutoLeveling |
FOR BULB TYPE TURN SIGNAL LIGHT
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U1000 | CAN Communication Failure (Message Registry) | Detection condition:
Malfunction status:
Malfunction duration:
|
Headlight ECU sub-assembly RH | HL AutoLeveling (Sub) |