Transmission Temperature Sensor/Switch: Testing and Inspection

TESTER INSTALLATION
- Connect the NGS tester or equivalent scan tool to the data link connector (DLC) and battery power.

RESISTANCE/CONTINUITY TEST
1. Set the multimeter on Ohms range.
2. Connect the positive (red) lead of the multimeter to breakout box pin 37.
3. Connect the negative (black) lead of the multimeter to breakout box pin 91 for chassis ground.
4. Resistance measurements will vary with ATF temperature.
ATF Temperature °C (°F): Resistance
20°C (68°F): 21.0-25.0 Kohms
40°C (104°F): 10.0-12.1 Kohms
60°C (140°F): 5.4-6.3 Kohms
80°C (176°F): 3.0-3.4 Kohms
100°C (212°F): 1.7-2.0 Kohms
120°C (248°F): 1.1-1.2 Kohms
140°C (266°F): 0.86-0.92 Kohms
5. If the resistance is not within specification, refer to Pinpoint Test B.