DTC B2780: Push Switch/Key Unlock Warning Switch Malfunction: Description
WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is detected when the transponder key ECU does not detect the unlock warning switch ON even with the ignition switch ON. In normal condition, the unlock warning switch should be ON when the ignition switch is ON.
PUSH SWITCH/KEY UNLOCK WARNING SWITCH MALFUNCTION
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2780 | Unlock warning switch ON is not detected when key is inserted into ignition key cylinder |
|