Dear muskox37,
Hope you're well. On 940s, headlight switches differ as between cars marketed in Canada (#3515978) and the U.S.(#1362699).
I believe the headlight switch for "Canadian" cars supports day-time running lights; the switch for "American" cars does not. I've never tried to interchange these switches.
The headlight switch difference suggests - but certainly does not prove - that a headlight relay for an "American" car won't work properly in a "Canadian" car.
Hope this helps.
Yours faithfully,
Spook
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