Purpose
The lights-on reminder warning alarm notifies the driver that the TNS and headlights are not turned off.
Function
The instrument cluster receives the following vehicle condition signals via the CAN signal from the start stop unit and rear body control module (RBCM).
TNS switch ON signal from start stop unit (TNS and headlights illuminate)
Driver's front door latch switch ON signal from rear body control module (RBCM)
If the ignition is switched to OFF or ACC when all the above vehicle condition signals are received, the instrument cluster operates the lights-on reminder alarm.
The lights-on reminder warning alarm sound pattern is as shown in the figure.

Construction
The lights-on reminder warning alarm sounds using the buzzer built into the instrument cluster.
Operation
1. The instrument cluster receives (1) the TNS switch ON signal from the start stop unit and driver's front door latch switch ON signal from the rear body control module (RBCM).
2. When the ignition is switched to OFF or ACC while each signal is received, the instrument cluster turns on (2) the transistor.
3. When the transistor turns on, the ground circuit of the alarm is established and the alarm sounds (3).

Fail-safe
Function not equipped.
Lights On Indicator Light
Low Engine Coolant Temperature Indicator Light (Blue)/High Engine Coolant Temperature
Warning Light (Red)Torque Sensor
Purpose/ Function
The torque sensor detects the steering torque and the steering direction,
and outputs the signal to the Electric Power Steering (EPS) control module (CM).
Construction, Operation
The Hall IC-type torque sensor is installed to the top of the steering column
...
Speedometer
Purpose
The speedometer notifies the driver of the speed at which the vehicle is
traveling.
Function
The instrument cluster controls the speedometer needle based on the vehicle
speed signal from the PCM and displays the current vehicle speed.
Construction
An an ...
Air Bag Module And Pre Tensioner Seat Belt Disposal Procedures [Two Step Deployment
Control System]
WARNING:
A live (undeployed) air bag module, pre-tensioner seat belt or lap pre-tensioner
seat belt may accidentally operate (deploy) when it is disposed of and cause
serious injury. Always refer to the “AIR BAG MODULE AND PRE-TENSIONER SEAT
BELT DEPLOYMENT PROCEDURES” and ...