No ground at ac relay
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87 wont have a signal, so there is no problem there. PIN 86 should recieve power from a fuse, which should be ok, so 85 is most likely your problem which is ground from ECM and one pressure sensor and one pressostat (switch) are part of that, but you may want to pull the ecm fuse first and/or disconnect the battery, and wait 15 minutes and see if that helps. ECM codes will prevent operation, but i may be the CCM. Good luck
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dads 740 turbo
Volvo 240, 740 & 940
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10-24-2008 06:54 PM