TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR INSPECTION [SJ6A-EL]
2016 – MX-5 – Transmission/Transaxle
TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR INSPECTION [SJ6A-EL]
CAUTION:
-
Water or foreign objects entering the connector can cause a poor connection or corrosion. Be sure not to drop water or foreign objects on the connector when disconnecting it.
On-Vehicle Inspection
1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.)
2. Remove the selector lever knob. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
3. Remove the shift panel component. (See SHIFT PANEL REMOVAL/INSTALLATION.)
4. Remove the upper panel. (See UPPER PANEL REMOVAL/INSTALLATION.)
5. Remove the parking brake lever boot panel. (See PARKING BRAKE LEVER BOOT PANEL REMOVAL/INSTALLATION.)
6. Remove the rear console. (See REAR CONSOLE REMOVAL/INSTALLATION.)
7. Remove the front console panel. (See FRONT CONSOLE PANEL REMOVAL/INSTALLATION.)
8. Remove the front console component. (See FRONT CONSOLE REMOVAL/INSTALLATION.)
9. Disconnect the connector and wiring harness clip.
10. Place a clean rag behind the engine so that the engine does not contact the rear housing when it is tilted.
11. Remove the front crossmember under cover. (See FRONT CROSSMEMBER UNDER COVER REMOVAL/INSTALLATION.)
12. Disconnect the control rod from the selector lever component. (See AUTOMATIC TRANSMISSION SHIFT MECHANISM REMOVAL/INSTALLATION.)
13. Remove the tunnel member.
14. Disconnect the HO2S connector. (See HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
15. Disconnect the TWC from the exhaust manifold (WU-TWC). (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
16. Suspend the TWC using a cable as shown in the figure.
17. Remove the power plant frame. (See POWER PLANT FRAME REMOVAL [M66M-D].)
18. Tilt the transmission while being careful not to allow parts on the back of the engine to contact the vehicle body.
19. Disconnect the solenoid valve connector.
20. Measure the resistance between the solenoid valve connector (coupler component) terminals A and B.
-
If there is any malfunction, perform the off-vehicle inspection for TFT sensor. (See Off-Vehicle Inspection.)
TFT sensor resistance
|
ATF temperature (°C {°F}) |
Resistance (kilohm) |
|
10 |
6.445 |
|
25 |
3.5 |
|
110 |
0.247 |
Off-Vehicle Inspection
1. Remove the TFT sensor. (See TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION [SJ6A-EL].)
WARNING:
-
A hot the transmission and ATF can cause severe burns. Turn off the engine and wait until they are cool before replacing ATF.
2. Place the TFT temperature sensor in the container filled with ATF, and measure resistance between solenoid valve connector (coupler component) terminals A and B by gradually increasing the ATF temperature as shown in the figure.
-
If there is any malfunction, replace the TFT sensor. (See TRANSMISSION FLUID TEMPERATURE (TFT) SENSOR REMOVAL/INSTALLATION [SJ6A-EL].)
TFT sensor resistance
|
ATF temperature (°C {°F}) |
Resistance (kilohm) |
|
10 |
6.445 |
|
25 |
3.5 |
|
110 |
0.247 |