DTC B2779: Engine Starter Communication Malfunction [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
If communication between the remote engine starter ECU and certification ECU (smart key ECU assembly) cannot be performed, even if a remote engine start operation is performed to try changing the power source mode to on (IG) or start the hybrid control system, this DTC is stored.
When the remote engine starter ECU does not respond to the certification ECU (smart key ECU assembly), this DTC is stored. When communication with the remote engine starter ECU is established and a remote engine start operation is performed, this DTC is cleared.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2779 | One of the following conditions is met (1 trip detection logic*):
|
|
A remote engine start operation is performed. |
- *: Only output 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 |
|---|---|
| Hybrid control system does not start with remote engine start operation | Hybrid control system cannot be started by remote engine start operation only |
RELATED DATA LIST AND ACTIVE TEST
| DTC Code | Data List and Active Test |
|---|---|
| B2779 |
|