DTC B2779: Engine Starter Communication Malfunction [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 remote engine start ECU does not respond to the certification ECU (smart key ECU assembly) or the remote engine start ID is not registered*, this DTC is stored.
If communication between the remote engine start ECU and the certification ECU (smart key ECU assembly) is established and the remote engine start is operated, this DTC and the corresponding history DTC will be cleared.
HINT:
*: Registration status of the remote engine start ECU ID can be checked using the "Wireless C Code" item in the Data List.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Note |
|---|---|---|---|---|
| B2779 | Engine Starter Communication Malfunction | When the remote engine start is operated to try to turn the power source on, or start the engine, the remote start function tries to communicate with the certification ECU (smart key ECU assembly), but communication fails. (1 trip detection logic*) |
|
DTC output confirmation operation:
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- *: Only detected while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE OPERATION WHEN MALFUNCTION DETECTED
| Vehicle Condition when Malfunction Detected | Fail-safe Operation when Malfunction Detected |
|---|---|
| The engine cannot be started with a remote start operation | The engine cannot be started with a remote start operation only |
RELATED DATA LIST AND ACTIVE TEST
| DTC No. | Data List and Active Test |
|---|---|
| B2779 | Smart Key
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