DTC B1571: Manual (SOS) Switch Green Indicator Malfunction [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 an open or short in the manual (SOS) switch green indicator circuit of the manual (SOS) switch. The manual (SOS) switch green indicator illuminates after the power switch is turned on (IG).
If the safety connect system is not active, the manual (SOS) switch green indicator will turn off.
If the safety connect system is active, the manual (SOS) switch green indicator will blink while communicating with the call center.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1571 | Manual (SOS) Switch Green Indicator Malfunction | Current for manual (SOS) switch green indicator reaches malfunction criteria for 10 seconds when power switch is on (IG). |
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