Headlamp Switch Testing
WARNING: This page is about a different car, the 2007 Pontiac Torrent and 2007 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the headlamp switch.
- Test for infinite resistance between the signal terminal and the voltage supply terminal with the switch in the open position.
- If less than infinite resistance, replace the headlamp switch.
- Test for less than 1.5 ohms between the signal terminal and the voltage supply terminal with the switch in the closed position.
- If greater than 1.5 ohms, replace the headlamp switch.