Component Resistance

WARNING: This page does not describe the selected car, but rather 36 other vehicles, including the 2002 Pontiac Firebird, 2002 Oldsmobile Bravada, 2002 GMC Yukon XL, 2002 GMC Yukon, and 2002 GMC Sonoma. However, it is still accessible from the selected car via links, so may be relevant.

Connect DVOM between specified terminals at component or at transmission in-line 20-pin connector to transmission. Measure individual component resistance at specified temperature. See Fig 1. See COMPONENT RESISTANCE SPECIFICATIONS table. If resistance is not as specified, replace appropriate component.

COMPONENT RESISTANCE SPECIFICATIONS

Component

Pins ⁽¹⁾

Ohms ⁽²⁾

Ohms ⁽³⁾

Resistance To Ground (Case)

Pressure Control Solenoid

C & D

3-5

4-7

⁽⁴⁾

Speed Sensor

A & B ⁽⁵⁾

1377-2220

1800-3355

⁽⁶⁾

TCC PWM Solenoid

U & E

10-11

13-15

⁽⁴⁾

TCC Solenoid Valve

T & E

21-26

26-33

⁽⁴⁾

TFT Sensor ⁽⁷⁾

L & M

3088-3942

159-198

⁽⁶⁾

1-2 Shift Solenoid

A & E

19-24

24-31

⁽⁴⁾

2-3 Shift Solenoid

B & E

19-24

24-31

⁽⁴⁾

⁽¹⁾	Resistance is measured between specified terminals at component or at transmission 20-pin in-line connector. See Fig 1.

⁽²⁾	Resistance is measured at 68°F (20°C).

⁽³⁾	Resistance is measured at 212°F (100°C).

⁽⁴⁾	Greater than 250 k/ohms.

⁽⁵⁾	Resistance is measured at speed sensor.

⁽⁶⁾	Greater than 10 megohms.

⁽⁷⁾	The resistance of this device is necessarily temperature dependent and will therefore vary far more than any other device. See Fig 2.

Fig 1: Identifying Component & Connector Terminal Locations

Courtesy of GENERAL MOTORS CORP.

Fig 2: TFT Sensor Specifications

Courtesy of GENERAL MOTORS CORP.