I have a volvo 940 series 1994 model.Once you switch the engine on the engine fan goes on at the high speed.
tested the thermo switch at the eng. side left its ok.but even if you disconnet the switch the fan still is on.diagnosis gives me code 123 which is the thermo switch.keep coming even after erasing the code.
someone tell me if you have a clue.how is the fan wired to the swith?
Donald