B2780

DTC B2780

Circuit Description

The transponder key ECU assembly monitors the status of the unlock warning switch. The transponder key ECU assembly detects when the unlock warning switch is ON. If the transponder key ECU assembly does not detect the unlock warning switch ON even when the key is in the ignition switch, DTC B2780 will set.


DTC Descriptor

This diagnostic procedure supports the following DTC:


DTC B2780 Push Switch / Key Unlock Warning Switch Malfunction


Conditions for Running the DTC

This DTC shall run when key is inserted into key cylinder.


Conditions for Setting the DTC

The unlock warning switch does not detected when ignition switch is ON.


Action Taken When the DTC Sets

The engine will not start.


Conditions for Clearing the DTC

The DTC will clear when conditions for setting the DTC have been repaired.