GM Service Manual Online
For 1990-2009 cars only

Component Resistance

Component

Pass Thru Pins

Resistance at 20°C (68°F)

Resistance at 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

TCC Solenoid Valve

T, E

21-26 ohms

26-33 ohms

Greater than 250 K ohms

TCC PWM Solenoid Valve

U, E

10-13 ohms

13-15 ohms

Greater than 250 K ohms

3-2 Shift Solenoid Valve

S, E

20-24 ohms

29-32 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

M, L

3088-3942 ohms

159.3-198.0 ohms

Greater than 10 M ohms

Vehicle Speed Sensor

A, B VSS CONN

1377-2220 ohms (2WD)

1420 ohms @ 25°C (77°F) (AWD/4WD)

1800-3355 ohms (2WD)

2140 ohms @ 150°C (302°F) (AWD/4WD)

Greater than 10 M ohms

*The resistance of this device is temperature dependent and will therefore vary far more than any other device. Refer to Transmission Fluid Temperature Sensor Specifications .