GM Service Manual Online
For 1990-2009 cars only

Component Resistance

Component

Pass Thru Pins

Resistance at 20°C

Resistance at 100°C

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

10-11 ohms

13-15 ohms

Greater than 250 K ohms

3-2 Shift Solenoid Valve Assembly

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 Pressure (TFP) Manual Valve Position Switch

Refer to Transmission Fluid Pressure Manual Valve Position Switch Resistance Check .

*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 (AWD/4WD)

1800-3355 ohms (2WD)

2140 ohms @ 150°C (AWD/4WD)

Greater than 10 M ohms

*Important: The resistance of this device is necessarily temperature dependent and will therefore vary far more than any other device. Refer to the Transmission Fluid Temperature Sensor portion of Electronic Component Description .