Purpose
The air bag system warning light notifies the driver of a malfunction in the SRS air bag system.
Function
If a malfunction occurs in the SRS air bag system, the air bag system warning light illuminates or flashes.

Construction
LEDs (light-emitting diode) have been adopted for the air bag system warning light.
The air bag system warning light is built into the instrument cluster.
Operation
When the ignition is switched ON, the instrument cluster illuminates the air bag system warning light for a specified period to indicate that the SRS air bag system is performing initialization diagnostics. If there is no malfunction in the SRS air bag system, the indicator light turns off.
If the SAS control module detects a malfunction in the SRS air bag system, it sends a warning signal to the instrument cluster via CAN communication. The instrument cluster illuminates or flashes the air bag system warning light based on the warning signal it receives to display the DTC.
If there is a malfunction in the SRS air bag system, the air bag system warning light displays DTCs according to the following patterns:

If there are several malfunctions in the SRS air bag system, the DTC of the highest priority ranking is displayed first.
Fail-safe
Function not equipped.
Afs Off Indicator Light
Air Bag System Warning Light [Two Step Deployment Control System]Front Body Control Module (Fbcm) Inspection
1. Remove the fuse box cover..
2. Remove the front body control module (FBCM) from the fuse box..
3. Verify that the voltages of each of the terminals are as indicated in the
Terminal Voltage Table (Reference).
If the voltage is not as indicated in the table, inspect the parts under
...
Starter Relay [Skyactiv G 2.0]
Purpose, Function
The starter relay supplies power to the starter by receiving the signal from
the PCM.
Construction
The starter relay is installed to the relay and fuse block.
Operation
The contact point is on when the voltage is supplied to the coil based on
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Engine Coolant Temperature (ECT) Sensor
Purpose/Function
Detects the ECT as basic information for mainly determining the fuel injection
amount.
Detects the ECT and inputs it to the PCM as an ECT signal.
The ECT sensor No.2 is only used for OBD.
Construction
ECT sensor No.1
Installed to the water out ...