Differential Oil Temperature Sensor Inspection

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

Hot differential oil may cause severe burns. Do not perform maintenance while differential oil is hot.

Disconnect the negative battery cable.
Disconnect the differential oil temperature sensor connector and remove the differential oil temperature sensor.

Wrap the differential oil temperature sensor with plastic wrap and immerse it into a beaker filled with water. Gradually raise the water temperature, and measure resistance between differential oil temperature sensor terminals A and B.

Fig 1: Measuring Resistance Between Differential Oil Temperature Sensor Terminals

Courtesy of MAZDA MOTORS CORP.

If not as specified, inspect the harness for continuity. If there is normal continuity between the terminals, replace the differential oil temperature sensor.

DIFFERENTIAL OIL TEMPERATURE SENSOR SPECIFICATION

Water temperature (°C {°F})	Resistance (kilohm)
0	91-100
10	56-61
20	35-39
30	23-25
40	15-16
50	10-11
60	7.1-7.9
70	5.0-5.6
80	3.6-4.0

Install the differential oil temperature sensor and connect the connector.
Connect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .)