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 Switch
- Ignition OFF, disconnect the harness connector at the ignition switch.
- Verify the resistance between the terminals listed below match for each ignition switch position.
- If not the specified value, replace the ignition switch.
Resistance Test
| Ignition Switch Position | Terminals 2 and 4 | Terminals 3 and 4 | Terminals 4 and 5 | Terminals 4 and 6 | Terminals 5 and 6 |
|---|---|---|---|---|---|
| Off Key Out | Infinite | Infinite | Infinite | Infinite | Infinite |
| Off Key IN | Infinite | Infinite | < 5.0 Ω | Infinite | Infinite |
| Accessory | Infinite | < 5.0 Ω | Infinite | Infinite | Infinite |
| Run | < 5.0 Ω | < 5.0 Ω | Infinite | Infinite | < 5.0 Ω |
| Start | < 5.0 Ω | Infinite | Infinite | Infinite | 1275-1325 Ω |