GM Service Manual Online
For 1990-2009 cars only

Component Resistance Table (4T40-E)

Component

Pass Through Pins

Resistance 20°C (68°F)

Resistance 100°C (212°F)

Resistance to Ground (Case)

1-2 Shift Solenoid Valve

A, E

19-24 ohms

24-31 ohms

Greater than 250 K ohms

2-3 Shift Solenoid Valve

B, E

19-24 ohms

24-31 ohms

Greater than 250 K ohms

Torque Converter Clutch Pulse Width Modulation Solenoid Valve

T, E

10-11 ohms

13-15 ohms

Greater than 250 K ohms

Pressure Control Solenoid Valve

C, D

3-5 ohms

4-7 ohms

Greater than 250 K ohms

Transmission Fluid Pressure (TFP) Manual Valve Position Switch

Refer to Pressure Switch Assembly Resistance Check

*Transmission Fluid Temperature (TFT) Sensor

L, M

3106-3923 ohms

164-190 ohms

Greater than 20 M ohms

Automatic Transmission Input (Shaft) Speed Sensor

S, V

615-700 ohms

750-835 ohms

Greater than 10 M ohms

Vehicle Speed Sensor

A, B

1530-1650 ohms

1700-1870 ohms

Greater than 10 M ohms

*

Important: The resistance of this device is necessarily dependent on the temperature. Therefore the resistance will vary far more than any other device.