Cabin fan not working - fuse 14?
Discussion
I'm not overly bothered, but the cabin blower isn't working. A quick Google suggests it's fuse 14 labelled 'heater' 15 amp fuse.
Everything else appears OK. Start with the fuse then?
I don't think it's the resistor, because it doesn't work at all. If the resistor is duff then they usually work full blast or not at all.
It's a '98 450 with the push and turn knob.
Everything else appears OK. Start with the fuse then?
I don't think it's the resistor, because it doesn't work at all. If the resistor is duff then they usually work full blast or not at all.
It's a '98 450 with the push and turn knob.
That year of car does not use resistors (although they are still there at the fan motor).
It does have a control module which varies the fan speed. It connects via the 'high speed' (Yellow) wire going to the motor connector which you can find high up the side of the footwell above the passengers knee. If you earth this wire the fan should come on full chat. This needs to be tested first with ignition on.
The most common fault here is a burnt connection of the yellow wire to the control module pin B1. Best repair is to bypass pin B1 by connecting the yellow wire directly inside the module.
As above check the motor first as you don't want to be taking the dash top off unless you have to.
Steve
It does have a control module which varies the fan speed. It connects via the 'high speed' (Yellow) wire going to the motor connector which you can find high up the side of the footwell above the passengers knee. If you earth this wire the fan should come on full chat. This needs to be tested first with ignition on.
The most common fault here is a burnt connection of the yellow wire to the control module pin B1. Best repair is to bypass pin B1 by connecting the yellow wire directly inside the module.
As above check the motor first as you don't want to be taking the dash top off unless you have to.
Steve
Gassing Station | Chimaera | Top of Page | What's New | My Stuff