DTC B15C5-11: Emergency Call Switch Circuit Short to Ground; DTC B15C513: Emergency Call Switch Circuit Open [08/2019 - ]: Description
WARNING: This page is about a different car, the 2022 Toyota Sequoia, 2021 Toyota Sequoia, and 2020 Toyota Sequoia. 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 roof console box 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 |
|---|---|---|---|
| B15C511 | 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) |
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| B15C513 | 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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