[Guest]

Stripped and fixed my climate control panel today.

Mines a GTA 156 but the same panel is in facelift 156

First strip the climate panel out. See other posts for a how to on this.

Next remove the torx head screws from the back and release the back cover piece of the unit.

You'll end up with this

I split the two circuit boards apart by unclipping the white ribbon cables. They are a push fit and a gentle yank with pliers gets the cable off.

The dial's movements are detected by hall sensors that look like little U shaped black things. There are 3 in all, one for each dial. Each has 6 circuit board connectors. The look like this.

Unfortunately, one of mine looked like this.

The other part of the component was inside the case. I firstly used a hot glu gun to put it back in place. Then I used a soldering iron to add a dab off solder to the joints and reconnect them. End result is here

The soldering isn't neat or tidy but it did work. I resoldered all the joints to the three sensors on the board as the joints use very little solder and I don't fancy doing this again.

Pop it all back in the car and enjoy.

Andy

 

[156Chris]

Told you it was easy!!! :thumbs:

 

[Guest]

First time I took a look, I thought the sensor was in the bit that goes into the centre of the dials thats fixed.

Second time I took the time to find the sensors and all was well. I've got a wicked burn from the soldering iron too!

 

[markwg]

Mind if I ask what the symptoms were?

 

[Guest]

Of course, the drivers side climate control dial to adjust temperature didn't work. But the fault could happen on any of the three dials. The dials have a set of metal teeth on the back like an ABS sensor ring. If the sensor breaks, the dial will still turn but the display won't change at all.

 

[markwg]

Thanks, that makes sense - mine is lovely & cold on LO or 16.5c, but as soon as I adjust up it over compensates & the heater kicks in. That sounds like it's not the same (& may be what it's supposed to do!), but I'll bear your fix in mind.

 

[156Chris]

Thanks, that makes sense - mine is lovely & cold on LO or 16.5c, but as soon as I adjust up it over compensates & the heater kicks in. That sounds like it's not the same (& may be what it's supposed to do!), but I'll bear your fix in mind.

Sounds most likely that your sensor is not reading the correct value for the current temperature ... which might be because of the airflow past the sensor.


Ask Mrs Mark if you can borrow her dyson (other vacuum cleaners are available!!) then with the hand held attachment put it up against each of the holes in the climate control unit and suck out any rubbish that might have got in ...


It might work ... but if it doesn't you haven't really lost anything.

 

[WESTW00D]

Worked for me and only cost me $26 for a Soldering Iron. But PLEASE, PLEASE BUY A NEEDLE NOSED SOLDERING IRON, I soldered two terminals together THREE times! Took an extra hour to just clean up the mess I made.

Thanks a lot for an excellent guide!

 

[Tommywho156]

Great guide, I will be using it at the weekend.