Component Test
WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
Headlamp Switch
- Ignition OFF, disconnect the harness connector at the headlamp switch.
- Test for infinite resistance between the signal terminal 3 and the ground terminal 8 with the switch in the Auto position.
- If not the specified value, replace the headlamp switch.
- Test for infinite resistance between the signal terminal 1 and the ground terminal 8 with the switch in the Auto position.
- If not the specified value, replace the headlamp switch.
- Test for less than 2.0 ohms of resistance between the signal terminal 3 and the ground terminal 8 with the switch in the Off position.
- If not the specified value, replace the headlamp switch.
- Test for less than 2.0 ohms of resistance between the signal terminal 1 and the ground terminal 8 with the switch in the Headlamp position.
- If not the specified value, replace the headlamp switch.