DTC B15EC: Backup Battery Degradation [06/2018 - 10/2019]: 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.
This DTC is set when the DCM (Telematics Transceiver) detects either of the following conditions.
- The BUB (Back-Up Battery) charge level becomes less than the criteria.
- The BUB (Back-up Battery) was used for Automatic Collision Notification (ACN).
When this DTC is set, the BUB (Back-Up Battery) must be replaced.
BUB (Back-Up Battery) degradation DTC B15EC is not reported in deactive mode.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15EC | Backup Battery Degradation | BUB (Back-Up Battery) is used up. | BUB (Back-Up Battery) |