Corrosion in the wire harness splices are quite common on Cavaliers. The front lighting harness will need to be closely inspected for water intrusion into the harness. Remove both headlamp housings and inspect the harness that runs between both headlamps near the "grill" area. Any spliced area's will appear as a bulge in the harness and should be opened and inspected. Water intrusion will appear bright green as the copper will be corroded.Repair any supsect areas and tape up the harness completely after confirming the repair. Sorry I cannot tell you which splice as there are mutiples. Good luck.
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