GM Service Manual Online
For 1990-2009 cars only

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 Temperature (TFT) Sensor

L, M

3106-3923 ohms

164-190 ohms

Greater than 20 M ohms

Automatic Transmission Input (Shaft) Speed Sensor

S, V

625-725 ohms

750-835 ohms

Greater than 10 M ohms

Automatic Transmission Output (Shaft) Speed Sensor

A, B

1500-1750 ohms

1750-1900 ohms

Greater than 10 M ohms

Automatic Transmission Floor Shift Control

C, F

8200-8300 ohms

NA

Greater than 10 M ohms

Automatic Transmission Floor Shift Control with upshift switch depressed

C, F

4370-4470 ohms

NA

Greater than 10 M ohms

Automatic Transmission Floor Shift Control with downshift switch depressed

C, F

1450-1550 ohms

NA

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.