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.
- Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
- Test the resistance between the voltage reference terminal 3 and the signal terminal 4 while depressing the appropriate steering wheel controls switch listed below.
- If not the specified range, replace the steering wheel switch.
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| Mute/Voice Recognition | 1.0k Ohms | 1.4k Ohms |
| Volume Down | 1.3k Ohms | 1.7k Ohms |
| Volume Up | 1.7k Ohms | 2.1k Ohms |
| Previous | 2.2k Ohms | 2.6k Ohms |
| Next | 2.8k Ohms | 3.2k Ohms |
| Source | 3.6k Ohms | 4.0k Ohms |
| Seek | 5.1k Ohms | 5.5k Ohms |
| No Switch Pressed | O.L. | O.L. |