Discussion
Assuming that it's not just the high beam filament on the bulb having gone (apologies if that's really patronising), the most likely candidate is the multi-connector that connects the wiring from the back of the headlight into the main supply from the engine bay - that was the problem when my dipped beam packed up on one side.
If you have inner wings fitted, you'll probably need to remove the appropriate one to get access to the connector.
If you have inner wings fitted, you'll probably need to remove the appropriate one to get access to the connector.
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