Component Testing
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the harness connector at the steering wheel controls switch - left.
- Cruise control switch ON, measure the resistance between terminal 1 and terminal 3 while individually activation and holding each cruise control function switch and compare the resistance reading to the values in the table below.
- If not within the specified resistance range, replace the steering wheel controls switch - left.
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| Off | O.L. | O.L. |
| On | 6.6k Ohms | 7.0k Ohms |
| - SET | 2.1k Ohms | 2.5k Ohms |
| + RES | 3.6k Ohms | 4.0k Ohms |
| Cancel | 1.3k Ohms | 1.7k Ohms |