Mazda Mazda6 Workshop Manual Supplement page 642

DIFFERENTIAL OIL TEMPERATURE SENSOR
Function
• The differential oil temperature sensor detects the rear differential oil temperature based on the resistance of
the thermistor, and inputs it to the 4WD control modure (4WD CM).
Construction/Operation
• The differential oil temperature sensor is installed in the rear differential carrier.
• The differential oil temperature sensor uses a thermistor whose resistance changes according to changes in
the rear differential oil temperature.
• The resistance grows smaller as the oil temperature rises and vice-versa, as shown.
.
1 Differential oil temperature sensor characteristic
2 Resistance (ohm)
3 Temperature (°C {°F})
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4WD WARNING LIGHT
Construction
• The 4WD warning light is built into the instrument cluster.
• If the self-diagnostic function stores a DTC, the warning light illuminates to alert the driver of the malfunction. If
system control is temporarily suspended due to the rear differential oil temperature becoming abnormally hot or
similar cause, the warning light flashes to alert the driver.
• The 4WD CM controls the operation of the warning light.
.
1 4WD warning light
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M–12
ELECTRONIC 4WD CONTROL SYSTEM
4
5
3
4 Larger
5 Higher
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