LOW ENGINE COOLANT TEMPERATURE INDICATOR LIGHT (BLUE)/HIGH ENGINE COOLANT TEMPERATURE WARNING LIGHT (RED) [SKYACTIV-G 2.0]

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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)

•  The high engine coolant temperature warning light (red) notifies the driver that the engine coolant temperature is high and that there is the danger of overheating.


Function


Low engine coolant temperature indicator light (blue)

•  The low engine coolant temperature indicator light (blue) illuminates when the engine coolant temperature is low.


High engine coolant temperature warning light (red)

•  The high engine coolant temperature warning light flashes when the engine coolant temperature exceeds the set value, and illuminates if the temperature increases further.


Construction

•  Illumination or flashing of the low engine coolant temperature indicator light (blue)/high engine coolant temperature warning light (red) is controlled by the instrument cluster microcomputer based on the engine coolant temperature signal from the PCM.

Operation

•  The operations until the low engine coolant temperature indicator light (blue) and high engine coolant temperature warning light (red) illuminate or flash are as follows:

Low engine coolant temperature indicator light (blue) illumination operation

1.  Ignition is switched ON.

2.  The instrument cluster receives (1) the engine coolant temperature signal from the PCM.

3.  The instrument cluster turns the transistor on (2) based on the engine coolant temperature signal.

4.  When the transistor is turned on (2), the low engine coolant indicator light (blue) illuminates.

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•  Illumination condition of the low engine coolant temperature indicator light (blue) is as shown in the figure.
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High engine coolant warning light (red) flashing/illumination operation

1.  Ignition is switched ON.

2.  The instrument cluster receives (1) the engine coolant temperature signal from the PCM.

3.  The instrument cluster turns the transistor on (2) intermittently or continuously based on the engine coolant temperature signal.

4.  The high engine coolant temperature warning light (red) flashes (3) when the transistor is turned on intermittently, and it illuminates (3) when the transistor is turned on continuously.

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•  Flashing/illumination condition of the high engine coolant temperature warning light (red) is as shown in the figure.
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