Component Testing
WARNING: This page is about a different car, the 2009 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect the harness connector at the right or left steering wheel control switch.
- Connect a DMM between terminals 1 and 4 of either the left or right steering wheel control switch.
- If any of the resistance measurements for the individual switches are not within the specified resistance values, replace the right steering wheel control switch.
Left Steering Wheel Switch Resistance
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| Mute/Voice Recognition | 1.8k Ohms | 2.2k Ohms |
| Previous/Gap Up | 3.4k Ohms | 3.8k Ohms |
| Next/Gap Down | 6.5k Ohms | 6.9k Ohms |
| Source | 7.7k Ohms | 8.1k Ohms |
| No Switch Pressed | O.L. | O.L. |
Right Steering Wheel Switch Resistance
| Function Switch | Minimum Resistance Value | Maximum Resistance Value |
|---|---|---|
| Scan | 1.1k Ohms | 1.3k Ohms |
| Seek | 1.4k Ohms | 1.8k Ohms |
| Volume Down | 1.7k Ohms | 2.1k Ohms |
| Volume Up | 2.2k Ohms | 2.6k Ohms |
| No Switch Pressed | O.L. | O.L. |