GM Service Manual Online
For 1990-2009 cars only

4T80-E Component Resistance Chart

Component

Pass Thru Pins

Res 20°C

Res 80°C

Res to Grd (Case)

1-2 Shift Solenoid Valve

A, E

20-30 ohms

23-50 ohms

Greater than 250 K ohms

2-3 Shift Solenoid Valve

B, E

20-30 ohms

23-50 ohms

Greater than 250 K ohms

AT Input, Shaft, Speed Sensor

S, V

1260-1540 ohms

1546-1872 ohms

Greater than 10 M ohms

TCC PWM Solenoid Valve

U, T

10-15 ohms

11-25 ohms

Greater than 250 K ohms

Pressure Control Solenoid Valve

C, D

3-5 ohms

4-7 ohms

Greater than 250 K ohms

¹Transmission Fluid Temperature (TFT) Sensor

M, L

2981-4018 ohms

293-372 ohms

Greater than 10 M ohms

Vehicle Speed Sensor

A, B VSS CONN

1260-1540 ohms

1563-1911 ohms

Greater than 10 M ohms

¹The resistance of this device is necessarily temperature dependent and will therefore vary far more than any other device. Refer to Transmission Fluid Temperature Sensor portion of Electronic Component Description .