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Home >> Suzuki >> 2007 >> XL7 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Lighting Systems >> Diagnostic Information and Procedures >> DTC B2645 >> Circuit/System Testing
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Circuit/System Testing

  1. Turn OFF the ignition.
  2. Disconnect the ambient light sensor.
  3. Turn ON the ignition.
  4. Install a scan tool and display the Ambient Light Sensor parameter in the BCM data list.
    • If the scan tool parameter is less than 7 volts, locate and repair an open, high resistance, or short to ground in the ambient light sensor signal circuit, or replace the ambient light sensor.
    • If the scan tool parameter is greater than 10.5 volts, locate and repair a short to voltage in the ambient light sensor signal circuit.
  5. If circuits test OK, replace the BCM.
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