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The pass side climate control on my 03 does not registar anything when tunred. shouldn't this show a reading on the panel when turned as the drivers side does?
The passenger side control is referenced off of the driver's side control. Makes the passenger side blow warmer or cooler than the driver's. I believe it's adjusted by feel.
System must be in "auto"....passenger side can be adjusted 5 degrees warmer or cooler (seems like that's what I remember)...It IS in the owners manual too
Had the same problem on my '99 coupe. We noticed it most on cool days when my wife froze to death because her side only blew cold.
To fix it, I bought the Temperature Control module through Bob @ Fichtner, took the whole dash apart, and swapped the parts.
Not that bad, just a lot to disassemble and reassemble. If you're around Chicago, I'll help you with it. But if you're not, it's probably a whole day job at the shop. Sounds like $500-750 to me.