Differential Oil Temperature Sensor Inspection

WARNING:

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

Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)
Remove the differential oil temperature sensor. (See DIFFERENTIAL OIL TEMPERATURE SENSOR REMOVAL/INSTALLATION .)

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.

Courtesy of MAZDA MOTORS CORP.

If not as specified, replace the differential oil temperature sensor. (See DIFFERENTIAL OIL TEMPERATURE SENSOR REMOVAL/INSTALLATION .)

Differential oil temperature sensor specification

Water temperature (°C {°F})	Resistance (kilohm)
0 {32}	91-100
10 {50}	56-61
20 {68}	35-39
30 {86}	23-25
40 {104}	15-16
50 {122}	10-11
60 {140}	7.1-7.9
70 {158}	5.0-5.6
80 {176}	3.6-4.0

Install the differential oil temperature sensor.
Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(US)] .)