DTC B2780: Push Switch / Key Unlock Warning Switch Malfunction [08/2015 - ]: Description
This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is ON even when the key is in the ignition key cylinder. Under normal conditions, the unlock warning switch assembly is ON when the key is in the ignition key cylinder.
| DTC No. | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| B2780 | The unlock warning switch assembly is not detected as being on when the ignition switch is ON (1 trip detection logic*). |
|
Insert the door control transmitter assembly into the ignition key cylinder. |
- *: 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 |
|---|---|
| Engine cannot be started | - |
RELATED DATA LIST AND ACTIVE TEST
| DTC No. | Data List and Active Test |
|---|---|
| B2780 | Key SW |