Hello, I just read the problem you have with the fans, I tell you that for the 1991 to 1995 models, the sensor or bulb that the command is a brown color sensor that is located on the side of the rear cylinder cover (looking at the front car and on the right) just below 2 water pipes that go to the heating.
This is seen removing the air filter inlet hose that goes to the mouth of admission.
This sensor is an electronic PTC (with positive temperature coefficient, that is, when the temperature increases the resistance value), you can measure it with a multimeter: at room temperature it must have a resistance less than 1600 OHM and when this approx 95 ° C its resistance must be approx 2900 OHM, in that value it is when it scans slow ventilation and in the 3100 approx, the vent. high
It may be that this sensor is deteriorated with a greater value of resistance (by ejenplo 4500 ohm at room temperature) or that the cable or its card is disconnected or false. (If I disconnect exactly the fault you comment, I hope the solutions, I will be attentive, greetings
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