DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [12/2023 - ]: Description
WARNING: This page is about a different car, the 2024 Lexus TX 550h+. However, it is still accessible from the selected car via links, so may be relevant.
The battery ECU assembly transmits and receives signals via CAN communication to and from the ECM.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|---|
| U0100-87 | Lost Communication with ECM/PCM "A" Missing Message | A CAN communication error between the battery ECU assembly and ECM (CAN communication system malfunction) occurs (1 trip detection logic) |
CAN communication system | Comes on | Master Warning: Comes on |
HV Battery | B | SAE Code: U0100 |