B2784

DTC B2784

Circuit Description

The transponder key coil is built into the transponder key amplifier and receives a key code signal from the transponder chip in the key. This signal is amplified by the amplifier, then it is sent to 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 key code signal, DTC B2784 will set.


DTC Descriptor

This diagnostic procedure supports the following DTC:


DTC B2784 Antenna Coil Open / Short


Conditions for Running the DTC

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


Conditions for Setting the DTC

The antenna coil is open or shorted to ground.


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.