Component Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Memory Switch
- Disconnect the X4 harness connector at driver door switch.
- Test for infinite resistance between the memory switch signal circuit terminal 5 and the switch supply voltage circuit terminal 14.
- If not infinite, replace the memory switch.
- Test the resistance between terminal 14 and terminal 5 while pressing the memory 1, memory 2, and EXIT buttons. Compare the resistance readings to the values in the Memory Switch Values table below.
- If the resistance is not within the specified range, replace the memory switch.
Memory Switch Values
| Switch Position | Resistance |
|---|---|
| Idle | Infinite |
| Memory 1 | 2.03K-2.49K ohms |
| Memory 2 | 3.83K-4.69K ohms |
| Exit | 9.32K-10.18K ohms |