1995 850 turbo wagon. No heat coming from the floor vents or the defrost vents. Blower and top vents work fine. A/C Evaporator and blower motor were changed recently. My suspicion is that that the wires for the three damper motors were crossed when the mechanic did the reassembly (previous owner). Questions:
1. Where are the climate control dampers located? What needs to be removed to gain access to the damper motors to try to switch the connections?
2. What is the procedure for resetting the ACC ECU using the onboard diagnostics? I understand that this is covered in the Haynes manual; unfortunately I cannot locate one of these manuals at this time. I know that disconnecting the battery with a series of steps will reset the ACC ECU, is this enough?
Thanks.

Check out:

http://www.brickboard.com/AWD/index.htm?id=900900

I finally figured out my problem after six adventures through the glove box.

Hope it helps.

- Thumbs

The answer is here:

http://www.volvospeed.com/maintence.htm

With pictures. The DTC codes are easy to read and reset. I would reset all of the ECC codes before working on the car. Then try to operate the heater and recheck the codes.

Klaus
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98 V70Rawd(101Kmi), 95 854T(85K mi), 75 164E(173K mi)