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Home >> Suzuki >> 2007 >> XL7 Base, AWD >> Repair and Diagnosis >> Electrical >> Horns >> Instrumentation/Driver Info./Horn >> Diagnostic Information and Procedures >> Fog Lamp Indicator Inoperative >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the fog lamp switch.
  2. Ignition OFF, test for less than 1 Ω of resistance between the ground circuit and ground.
    • If greater than 1 Ω, test the ground circuit for an open/high resistance.
  3. Verify the scan tool fog lamp switch parameter is OFF.
    • If the fog lamp switch parameter is not indicating OFF, test the signal circuit for a short to ground.
  4. Install a 3-amp fused jumper wire between the signal circuit and ground. Verify the scan tool fog lamp switch parameter is ON.
    • If the fog lamp switch parameter is not indicating ON, test the signal circuit of the fog lamp switch for a short to voltage or an open/high resistance.
  5. If all circuits test normal, test or replace the fog lamp switch.
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