Component Testing
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
The cruise control ON/OFF switch must be ON in order to properly measure the resistance of the - SET, the + RES, and the Cancel switches.
- With the ignition OFF, remove the inflatable restraint steering wheel module. Refer to Inflatable Restraint Steering Wheel Module Replacement .
- With the ignition OFF, disconnect the harness connector at the steering wheel control switch assembly - left.
- Measure the resistance between terminals 1 and 3 at the cruise control switch side of the connector. Individually activate and hold each cruise control function switch and compare the resistance reading to the values on the schematic for the ON/OFF, - SET, the + RES, and the Cancel switches.
- If any of the resistance measurements for the OFF, ON, - SET, + RES, and Cancel switches are not within the listed resistance values, replace the cruise control switch assembly.
Cruise Control Inoperative/Malfunctioning
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| OFF | O.L. | O.L. |
| ON | 6.5k Ω | 7.0k Ω |
| - SET | 2.2k Ω | 2.4k Ω |
| + RES | 3.7k Ω | 3.8k Ω |
| Cancel | 1.4k Ω | 1.6k Ω |