I had similar problem. Check your DME fuses. After 2 weeks of tearing mine apart and losing my mind, decided to check fuses, bingo. Not sure of 05 fuse box layout, but my DME had 3 separate fuses controlling it. Keep us posted.

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Dave S.
Northeast
2003 4.6is
2005 E53 4.4
2003 E39 Msport(a REAL ONE!)
1959 Fiat 600