DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction: Description
WARNING: This page is about a different car, the 2006 Scion tC. However, it is still accessible from the selected car via links, so may be relevant.
This DTC will be output when the key is inserted into the ignition key cylinder, but the transponder key ECU does not detect the ON condition of the unlock warning switch. Normally, inserting the key into the ignition key cylinder turns ON the unlock warning switch, which is then detected by the ECU.
DTC DETECTING CONDITION - TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B2780 | Unlock warning switch ON condition is not detected when key is in ignition key cylinder |
|