Mazda CX-5 Service & Repair Manual: Low Engine Coolant Temperature Indicator Light (Blue)/High Engine Coolant Temperature Warning Light (Red)
Purpose
Low engine coolant temperature indicator light (blue)
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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)
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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)
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The low engine coolant temperature indicator light (blue) illuminates when the engine coolant temperature is low.
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The illumination condition of the low engine coolant temperature indicator light (blue) is as shown in the figure.
High engine coolant temperature warning light (red)
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The high engine coolant temperature warning light flashes at 0.5 s intervals when the engine coolant temperature exceeds the set value, and illuminates if the temperature increases further.
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The flashing/illumination condition of the high engine coolant temperature warning light (red) is as shown in the figure.
Construction
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Illumination, flashing, or turning off 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.
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The low engine coolant temperature indicator light (blue)/high engine coolant temperature warning light (red) is set in the instrument cluster.
Operation
Low engine coolant temperature indicator light (blue)
1. When the ignition is switched ON (while engine is running), the instrument cluster receives (1) the engine coolant temperature signal from the PCM via the CAN signal.
2. The instrument cluster turns the transistor on (2) based on the engine coolant temperature signal.
3. When the transistor turns on, the ground circuit of the low engine coolant temperature indicator light (blue) is established and the low engine coolant temperature indicator light (blue) illuminates (3).
High engine coolant temperature warning light (red)
1. When the ignition is switched ON (while engine is running), the instrument cluster receives (1) the engine coolant temperature signal from the PCM via the CAN signal.
2. The instrument cluster turns the transistor on (2) intermittently for flashing and continuously for illumination based on the engine coolant temperature signal.
3. 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.
Fail-safe
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Function not equipped.
Lights On Reminder Warning Alarm
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 c ...
Low Fuel Warning Light
Purpose
The low fuel warning light warns the driver that the remaining fuel level
is low.
Function
The instrument cluster calculates the fuel quantity based on the following
...
Other materials:
Rear Shock Absorber Disposal
WARNING:
Whenever drilling into a rear shock absorber, wear protective eye wear. The
gas in the rear shock absorber is pressurized, and could spray metal chips into
the eyes and face when drilling.
1. Clamp a rear shock absorber on a flat surface or with the piston pointing
...
Fuel Gauge Sender Unit Inspection [2 Wd]
NOTE:
For the fuel gauge sender unit removal/installation, refer to the fuel pump
removal/installation because the fuel gauge sender unit is integrated with the
fuel pump..
1. Verify that the resistance at fuel gauge sender unit terminals D and C is
as indicated in the table ac ...
Auto Light Off System
Purpose
The auto light-Off system turns off the TNS or headlights automatically.
The front body control module (FBCM) performs auto light-Off system fail-safe..
Function
The auto light-Off system controls the front body control module (FBCM).
The front body contro ...