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I believe modern V70, XC70, S60, S80, and XC90 models all use similar wiring architecture. I posted a 2004 V70 headlight drawing at the URL listed below (combine the 3 lines without any spaces):
http://
members.cox.net/n0v8or/
V70headlights.jpg
I wrote it this way to confuse the spammer programs that monitor the internet.
The lo-beam circuit path is Battery_positive - Common_fuse - Current_sensor - Relay - Individual_fuse - Lamp - Ground. The light switch operates the relay via a serial communications bus and the CEM.
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