DTC B15C5-11: Emergency Call Switch Circuit Short to Ground; DTC B15C5-13: Emergency Call Switch Circuit Open [10/2019 - ]: Description
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2024 Lexus ES 350, 2024 Lexus ES 250, 2023 Lexus ES 350, 2023 Lexus ES 250, and 2022 Lexus ES 350. However, it is still accessible from the selected car via links, so may be relevant.
If the DCM (telematics transceiver) detects an error in the communication between the DCM (telematics transceiver) and the map light sub-assembly (manual (SOS) switch) as a result of the DCM (telematics transceiver) self check, this DTC will be stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B15C5-11 | Emergency Call Switch Circuit Short to Ground | Manual (SOS) switch impedance (Ω) is lower than the malfunction threshold for 10 seconds or more when the engine switch is on (IG) |
|
| B15C5-13 | Emergency Call Switch Circuit Open | Manual (SOS) switch impedance (Ω) is higher than the malfunction threshold for 10 seconds or more when the engine switch is on (IG) |
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