Component Resistance

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. 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-way connector to transmission. Measure individual component resistance at specified temperature. See Figure. See COMPONENT RESISTANCE SPECIFICATIONS table. If resistance is not as specified, replace appropriate component. See Figure.

COMPONENT RESISTANCE SPECIFICATIONS

Component

Pins ⁽¹⁾

Ohms ⁽²⁾

Ohms ⁽³⁾

Resistance To Ground (Case)

PC Solenoid

C & D

3-5

4-7

⁽⁴⁾

Speed Sensor

A & B ⁽⁵⁾

1420 ⁽⁶⁾

2410 ⁽⁷⁾

⁽⁸⁾

TCC PWM Solenoid

S & E

10-11

13-15

⁽⁴⁾

TFT Sensor ⁽⁹⁾

L & M

3088-3942

159-198

⁽⁴⁾

1-2 Shift Solenoid

A & E

19-24

24-31

⁽⁵⁾

2-3 Shift Solenoid

B & E

19-24

24-31

⁽⁴⁾

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

⁽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⁾	Resistance is measured at 77°F (25°C).

⁽⁷⁾	Resistance is measured at 302°F (150°C).

⁽⁸⁾	Greater than 10 megohms.

⁽⁹⁾	The resistance of this device is necessarily temperature dependent, and will therefore vary far more than any other device. See Fig 1.

Fig 1: Transmission Fluid Temperature Sensor Specifications

Courtesy of GENERAL MOTORS CORP.