Component Testing
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Ignition Switch
Using the Resistance Test below, check the resistance between the pins of the ignition switch listed in each switch position listed.
- If any reading is other than specified, replace the ignition switch.
Resistance Test
| Ignition Switch Position | Pins 2 and 1 | Pins 2 and 3 | Pins 2 and 5 | Pins 2 and 6 | Pins 5 and 6 |
|---|---|---|---|---|---|
| Off Key Out | Infinite | Infinite | Infinite | Infinite | Infinite |
| Off Key IN | Infinite | Infinite | < 5.0 Ohms | Infinite | Infinite |
| Accessory | Infinite | < 5.0 Ohms | Infinite | Infinite | Infinite |
| Run | < 5.0 Ohms | < 5.0 Ohms | Infinite | Infinite | < 5.0 Ohms |
| Start | < 5.0 Ohms | Infinite | Infinite | Infinite | 1275-1325 Ohms |