Circuit/System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.

Multifunction/Headlamp Switch Circuit Testing

Ignition OFF, disconnect the harness connector at the headlamp switch, terminal C1 pins 4 and 2.
Test for less than 1 Ω of resistance between the ground circuit terminal C1 pin 1 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
Install a 3-amp fused jumper wire between the signal circuit and ground. Verify the headlamps are ON.
- If the headlamps are not ON, test the signal circuit of the headlamp switch for a short to voltage or an open/high resistance.
If all circuits test normal, test or replace the headlamp switch, replace the whole multifunction switch.