DTC U115C-87: Lost Communication with ECM/PCM "A" (ch5) Missing Message [10/2022 - 10/2024]: Description
WARNING: This page is about a different car, the 2025 Lexus RX 350, 2024 Lexus RX 350, and 2023 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
The ECM and skid control ECU (brake actuator assembly) send and receive signals via CAN communication.
If a communication error occurs between the ECM and skid control ECU (brake actuator assembly), the ECM stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Priority | Note |
|---|---|---|---|---|---|---|---|
| U115C-87 | Lost Communication with ECM/PCM "A" (ch5) Missing Message | There is no communication between the ECM and skid control ECU (brake actuator assembly) (1 trip detection logic). |
|
Does not come on | Engine | B |
|