Tried to fix the rear defroster, but havent yet.
getting an error code saying relay not activated.
its been swapped with a known good one,same.
Fuse is good(30A).
Power at the fuse and both the relay power supply and for the pull down circuit and if I jumper it, it warms up.
Also if I look at live data the control says it triggers, but still no activation or even a click at the relay.
My guess is a bad wire to the relay, will take more digging

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2004 X5(E53) 3.0L
1999 M3(E36)
2003 Z4(E85) 3.0L