the fuse is locate is under the hood. the fuse box is on the driver side ,right next to the hinge mounted between the hood and the fender of the car. the number 7 fuse is labled for the climate control system. It also control the backup lights and a few other items. I changed it but there was no change in condition. also the air circulation light is on all the time. does this mean that the climate control unit is bad?

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96 E320