fan always running ? [Archive] - Toyota MR2 Message Board

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my buddy who owns a shop cant figure out what malfunction causes the fans to constantly run whenever the car is on, or how to fix it. hes tried replacing relys and other things of that sort but he says it happens to a lot of mr2s. to my understanding, once you tamper with whatever sets off the malfunction, you cannot fix it because the computer tells the fan to run all the time. does anyone know the solution or culprit ? p.s. im a victim of the running fan