HELP - Climate Control

[GZ R33]

Can anyone tell me how to set my default temp, every time I turn on the car the default temp is 25 degrees. I tried turning on the climate control and lowering the temp than switching it off, you switch on and it shows say 18 degrees fine. But it's when you turn the car off it reverts back to 25 degrees.

[PLYNX]

Have you checked that the temperature sensor for the inside of the cabin is working ? Its located behind the little slotted vent on your dash board between the steering colum and your radio/climate contol station. There is also a hose that connects to it as well just make sure its still attached. Unfortunatly you'll have to take out the dash to check.

Hope this helps Dude

[ferni]

Assuming you have an R33 GTR ...

Turn on your ignition (or start the car either way)... withing 10seconds of doing so, hold the OFF button on the climate control for about 5 seconds, or until it turns on...

then you can press the red arrow i think it is that will scroll through the different tests..

20 is good, press red arrow again

30 is good, press red arrow again

4 can't remember, press red arrow again

5 then the demister button shows temp inside/outside etc...

have a play. .. there is a pdf somewhere about R32 and 33 skylins that tells you about all this

[Ant]

Can anyone tell me how to set my default temp, every time I turn on the car the default temp is 25 degrees. I tried turning on the climate control and lowering the temp than switching it off, you switch on and it shows say 18 degrees fine.  But it's when you turn the car off it reverts back to 25 degrees.

Sounds like a wiring problem to me. Has it always done this or only just started recently? If recently, have you had any dash wiring done - eg fitted a stereo or alarm?

My guess is that the AC unit requires (a tiny bit of!) power when the car is off to maintain the last set point in memory. What could be wrong is that this connection is dodgy/loose so the unit resets every time you switch it off.

So check all connections on the back of the AC unit, look for anything loose/missing.

When you shut the car off do you also loose what mode the AC was in - ie do you have to reset what vents it is blowing to etc as well?

[GZ R33]

Sounds like a wiring problem to me. Has it always done this or only just started recently? If recently, have you had any dash wiring done - eg fitted a stereo or alarm?

My guess is that the AC unit requires (a tiny bit of!) power when the car is off to maintain the last set point in memory. What could be wrong is that this connection is dodgy/loose so the unit resets every time you switch it off.

So check all connections on the back of the AC unit, look for anything loose/missing.

When you shut the car off do you also loose what mode the AC was in - ie do you have to reset what vents it is blowing to etc as well?

If you turn the car off then turn it on straight away it remembers to come on at the right temp, if you leave it overnight and try it, it doesn't come on and when you turn it on it shows 25 degrees.

[Ant]

If you turn the car off then turn it on straight away it remembers to come on at the right temp, if you leave it overnight and try it, it doesn't come on and when you turn it on it shows 25 degrees.

Is that turning the car all the way off (to the point at which you can remove the key) or just to ACC and back on?

Also how long can you leave it between starts before it 'forgets' - more than 1hr?

If < 1hr then that could be wiring, there may be some capacitance on the supply to the AC unit that holds up the voltage for this duration (and hence maintains the last set point).

In any case check all the connections, not sure if there is a connection diag for the AC unit kicking round. It is very simple to take out to do this.