Purpose
KEY warning light (red)
The KEY warning indicator light (red) notifies the user that the engine cannot be started, the remote transmitter is outside of the vehicle, or that there is a malfunction in the system.
KEY indicator light (green)
The KEY indicator light (green) notifies the user that the engine starting conditions have been met or that the remote transmitter battery voltage is depleted.
Function
KEY warning indicator light (red)
When a malfunction is detected in the system, the KEY warning indicator light (red) illuminates..
The KEY warning indicator light (red) flashes if the engine cannot be started and when the ignition is switched to ACC or ON (engine off or on) and the transmitter is taken outside of the vehicle..
KEY indicator light (green)
When the engine-starting conditions have been met, the KEY indicator light (green) illuminates..
If the remote transmitter battery voltage is depleted, the KEY indicator light (green) flashes..
Construction
The KEY warning indicator light (red)/KEY indicator light (green) are built into the instrument cluster.

Operation
Warning indicator light (red)
If a malfunction is detected in the system, the engine cannot be started, or the remote transmitter is outside of the vehicle, the start stop unit sends a warning request signal via CAN transmission to the instrument cluster.
KEY indicator light (green)
If the engine starting conditions have been met, the start stop unit sends a KEY indicator light (green) illumination request signal via CAN transmission to the instrument cluster.
If the remote transmitter battery voltage has been depleted, the start stop unit sends a battery voltage depletion display request signal via CAN transmission to the instrument cluster.
Fail-safe
Function not equipped.
Headlight High Beam Indicator Light
Lights On Indicator LightFront Body Control Module (Fbcm) Configuration (Using Read/Write Function)
NOTE:
When performing configuration, it is necessary to read the vehicle specification
information from the front body control module (FBCM) before replacing it. Connect
the M-MDS to the vehicle and perform vehicle identification before removing
the front body control module (FBCM). ...
Thermostat
Purpose, Function
When the engine coolant temperature is low, the thermostat blocks the engine
coolant passage between the radiator and engine. As a result, because engine
coolant cycles without passing through the radiator, warming is promoted.
Construction
The thermostat ...
Low Engine Coolant Temperature Indicator Light (Blue)/High Engine Coolant Temperature
Warning Light (Red)
Purpose
Low engine coolant temperature indicator light (blue)
The low engine coolant temperature indicator light (blue) notifies the driver
that the engine coolant temperature is low and vaporization of the fuel is difficult.
High engine coolant temperature warning light (red)
...