Mazda CX-5 Service & Repair Manual: Ambient Temperature Display
Purpose
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The ambient temperature display notifies the user of the ambient temperature.
Function
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The instrument cluster displays the ambient temperature based on the ambient temperature signal sent from the PCM as a CAN signal.
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The ambient temperature is displayed between -40—70°C {-40?160°F} If the ambient temperature is -40°C {-40°F} or less, -40°C {-40°F} is displayed, and 70°C {160°F} is displayed if the temperature is 70°C {160°F} or more.
Road ice warning function
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When the instrument cluster receives an ambient temperature signal of 4°C {39°F} or less from the PCM, it displays the ice mark. After receiving the ambient temperature signal of 4°C {39°F} or more, it flashes the ice mark and the ambient temperature display for about 10 s to warn the user that the road surface may be icy.
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Once the instrument cluster performs the road ice warning, it will not perform it again until it receives an ambient temperature of 6°C {43°F} or more.
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The ice mark and ambient temperature flashing pattern is as indicated in the figure.
Ambient temperature display switching function
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The ambient temperature display can be switched between Celsius and Fahrenheit display. Refer to the workshop manual for the ambient temperature display switching procedure.
Construction
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The ambient temperature is displayed on the LCD in the instrument cluster.
Operation
1. When the ignition is switched ON, the instrument cluster receives an ambient temperature signal from the PCM (1).
2. Based on the ambient temperature signal, the instrument cluster displays the ambient temperature and ice mark on the LCD.
Fail-safe
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Function not equipped.
Gauges
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Ambient Temperature Display Switching Procedure
NOTE:
When the ambient temperature display is switched, the set A/C cabin temperature
display is also changed.
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Other materials:
Engine Tune Up
Engine Tune-up Preparation
NOTE:
If the accelerator pedal is depressed continuously for a specified time,
the engine speed may decrease to the idle speed. This is due to the fuel cut
control operation, which prevents overheating, and it does not indicate a malfunction.
The engine s ...
Evaporator Temperature Sensor Inspection [Manual Air Conditioner]
NOTE:
Inspect the evaporator temperature sensor when it is installed to the A/C
unit.
1. Set the fan speed at MAX HI.
2. Set the temperature control at MAX COLD.
3. Set the RECIRCULATE mode.
4. Turn the A/C switch off.
5. Close all doors and windows.
6. Wait for 5 min.
7 ...
Engine Coolant Temperature (ECT) Sensor Inspection
Resistance Inspection
WARNING:
When the engine is hot, it can badly burn. Turn off the engine and wait until
it is cool before removing the ECT sensor.
ECT Sensor No.1
1. Remove the ECT sensor No.1..
2. Place the ECT sensor No.1 in water with a thermometer, and heat the water
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