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.
- Ignition OFF, disconnect the harness connector at the stop lamp switch.
- Verify that the stop lamps are OFF.
- If the stop lamps are not OFF, test the stop lamp signal circuits for a short to voltage.
- Verify that a test lamp illuminates between the voltage supply circuit and ground.
- If the test lamp does not illuminate, repair the voltage supply circuit for a short to ground or an open/high resistance. If the voltage supply circuit fuse is open, test or replace the stop lamp switch.
- Install a 3-amp fused jumper wire between the signal circuit and the voltage supply circuit. Verify that the brake lamps are ON.
- If the brake lamps are not ON, test the signal circuit for an open/high resistance. If circuit tests normal, test or replace the brake lamp bulb.
- If all circuits test normal, test or replace the stop lamp switch.