My 93 940T Wagon has a Seiko-Seiki SS-121DS5 compressor (part# 6841028). The clutch coil is drawing about 4.5A at 12V (~2.7 ohms), but from what I can tell, the compressor clutch coil driver IC, within the MCC (Manual Climate Control), is only rated to 1.5A.
Does any one know the valid range of coil resistances or currents for this compressor's clutch coil (part# 6848089)? (This information might be in the Volvo Climate Unit Service Manual, but I dont have access to one. Thanks (Earlier I mistakenly posted this in the 260/760/960 area.)

04/25/2011 update:
I found that I had mistakenly reversed the pin numbers on connector A of the MCC. This had lead me to initially misidentify the component which was driving the compressor's clutch coil. It turned out that the coil was driven by a relay on the MCC's circuit board. Thankfully I was able to fix my problem by resoldering two of the relay's solder joints, which were cracked. I wasn't able to determine the max current rating for the contacts on the relay (Takamisawa part# CS9MN-K), but I suspect that they are rated at 10A, which would easily drive my 2.7 ohm clutch coil.

04/26/2011 update:
Fujitsu forwarded me a copy of the datasheet for its now discontinued Fujitsu Takamisawa "CS" family of automotive relays. It turns out that the CS9MN-K has an impressive 20A switching current rating on its relay contacts.