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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 

  1. Ignition OFF, disconnect the harness connector at the headlamp switch.
  2. Test for less than 1 Ω of resistance between the ground circuit and ground.
    • If greater than the specified range, test the ground circuit for an open/high resistance.
  3. 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.
  4. If all circuits test normal, test or replace the headlamp switch.