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The mkiv Supra Owners Club

Heater/AC controller not working


d_d

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Hi

 

Ive searched through the forums and tried most things that i can find.

 

Had the dash apart to fit a new stereo.

 

Putting back together it seems the heater controls do nothing no fans no air con lights nothing.

 

Ive plugged in the 2 connectors at the back definetly and have double checked all fuses.

 

The cigarette lighter works even the indicators lights everything including in the stereo, but yet the heaters/ac which turns the fans on etc dont.

 

Only thing i can think of is the plugs been damaged or the heater controls are now buggered.

 

Anyone got a wiring diagrams of that part so i can see if i have voltage.

 

Any other suggestions appreciated.

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  • 2 years later...

Thanks for link Geo, I've saved that for future reference :)

 

During my huge interior tidy today i took the dash back off and found the problem to my ac/blowers not working......... One of the two orange connectors had fallen out (what a muppet i am!). Needless to say it all works now :)

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  • 1 year later...

Fixed the problem!!

 

After taking the dash out again and checking all the connectors were fine, I took the lower glove box out to get access to the blower fan unit. It turns out that the fan can get stuck sometimes and if you simply give it a good tap when the ignition is on the fan will come back to life. No need to spend loads on new blower units, control units and switches etc.

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