Technical interior fan not working

[madmax127]

hi there can anyone help i have a coupe 20v turbo 1997 model with manual climate control and my interior fan doesnt work ive checked the fuse all ok and has power to it ive checked the fan all ok but no power to fan so tryed putting vehicle on the fiat exmanier at work but unable to contact the air con control unit i suspect a broken feed wire to the ecu from fusebox but havent had time to check as the vehicle is of the road having some tlc and tuning on it and just wondered if this was a common problem with these and can anybody throw me sum ideas as its racking my brain out trying to find out the problem thank u for ur ideas max

 

[aviator]

hi there can anyone help i have a coupe 20v turbo 1997 model with manual climate control and my interior fan doesnt work ive checked the fuse all ok and has power to it ive checked the fan all ok but no power to fan so tryed putting vehicle on the fiat exmanier at work but unable to contact the air con control unit i suspect a broken feed wire to the ecu from fusebox but havent had time to check as the vehicle is of the road having some tlc and tuning on it and just wondered if this was a common problem with these and can anybody throw me sum ideas as its racking my brain out trying to find out the problem thank u for ur ideas max

Hi. I had exactly the same problem recently. Fuse OK, Fan Motor OK but no power getting to it. According to the Fiat wiring diagram, the main 12volt power goes to the motor first then backs of up to the speed selector. In any event, I tried my damdest to trace the route of the wire from the fuse over to the motor without success, so in the end, I ran a parallel wire using press clips from the fuse to the motor. Its been running fine for over a month no problems. I made sure I connected my new wire to the correct side of the fuse (so it stays protecting the heater motor). The fuse is marked and is within the fuse box above your right shin.

 

[s130]

Speed controller module. Trying to remeber where it is located. It is either to the right of the motor housing underneath the dash, or, I think it may be inside the motor housing unit so it gets cooled by airflow.

Either way it is a grey finned (as in heatsink) unit about 3 inches wide and 4 long and 1 inch deep.

You can bypass this unit (just join the thick input and output wires together. WARNING

The fan motor will then run at full speed, regardless of the control know setting so if you have the motor unit out at this time then take care. It is best to just "flash" connect the wires.

Nick /////

 

[madmax127]

thanks mate i finally had time to look at it i found the main 12v wire from the fuse to the climate control ecu and found a brake in the wire stopping the ecu powering up thats why my aircon and fan wernt working thanks for ur reply