Interior heater fan/blower not working - no power

[Meir]

sorry i cant help with that as i never came across a non AC vehicle.
the only experience i have is with the electronic AC control module, and comes in one piece.

[Meir]

pic of the electronic control

[Meir]

looking at the PET, it looks like the one you have is a one piece too.
and also do not exist in US&Canada cars.

[sweatyfox]

Ok, I have a second hand control panel to fit, but can anyone tell me how I get the old one out?

I have removed the 4 screws securing it in place, but I'm unable to pull the control panel into the car as the black mounting tabs prevent it from being pulled forward.

I've managed to have a look behind and there doesn't really seem to be enough room to push it back through and take it out that way.

There's almost enough room to turn it 45 degrees and pull it out the front.

Can anyone tell me the correct way to do this please.

Thanks,
SF

[sweatyfox]

Ok, so I have managed to remove the heater control panel and refitted a second hand one but still no joy.

What else could be the problem?
The fuses are fine.
Relays are fine.
Fan motor is fine.
Heater control panel has been replaced.

What else is left?


As for removal of the control panel:
This was done by disconnecting the heat and vent position cables at the bottom, this gave more freedom to the cables which allowed me to rotate the control panel enough to be able to pull it out sideways and disconnect the cables and connectors.

[sweatyfox]

Ok, so I'm making progress, but I cant find a wiring diagram that matches my car.

The only wiring diagram I have is for a Boxer with Air Conditioning which I'm guessing is different?

This car has no A/C and is a 1999 UK.

I have managed to power everything up by giving the circuit a 12v + and an earth.
The attached image shows the main 12v power in which is a black & blue wire.

Now here's the problem:
If I just put 12v + to the black/blue wire I still get nothing.
If I ground the motor wire (brown wire - ground) to the chassis nothing works.
But if I do both of the above together the whole system works as it should.

So somehow I the circuit is missing 12v + in AND an earth.

If I had a circuit diagram for this I might be able to make some sense of it.
Anyone have any Ideas to what is causing a 12v + and ground connection to be missing?

[Meir]

sent you a PM