Having had that same problem a couple years ago, the solution for mine was to access the wiring harness connectors behind the headlight buckets by removing the wheel then the access cover. Pull the connector apart and clean both male and female connections. B
Before reconnecting, slide a shrink wrap wire protector over the connector, then connect and shrink the wrap. Wrap electrical tape around that shrink wrap. I even went so far as to plastic tie wrap the tape.
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