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Home >> Suzuki >> 2008 >> XL7 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting Systems >> Diagnostic Information and Procedures >> Front Fog Lamps Malfunction >> Circuit/System Testing >> Fog Lamp Switch Circuit Test
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Fog Lamp Switch Circuit Test

  1. Ignition OFF, disconnect the harness connector at the fog lamp switch.
  2. Verify that a test lamp illuminates between the ground circuit terminal 5 and B+.
    • If the test lamp does not illuminate, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify the scan tool Front Fog Lamp Switch parameter is Inactive.
    • If not the specified value, test the signal circuit terminal 4 for a short to ground. If the circuit tests normal, replace the BCM.
  4. Install a 3A fused jumper wire between the signal circuit terminal 4 and the ground circuit terminal 5. Verify the scan tool Front Fog Lamp Switch parameter is Active.
    • If not the specified value, test the signal circuit for a short to voltage or and open/high resistance. If the circuit tests normal, replace the BCM.
  5. If all circuits test normal, test or replace the headlamp switch.
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