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Wiring Diagram - Climate Control

After a bit of help please guys. With the VR Statesman we recently bought, i had to adjust the reverse switch at the base of the shifter to get the reverse lights working. Since doing this & putting the console back together the climate control will not turn on,nothing on the display,have checked fuses,relays etc. Have not removed the climate control itself from the dash to check it.

The problem must be electrical as the vacuum side of things seems to be working, when you turn the car on you can hear the flaps that direct air moving in behind the dash.

This became a real problem getting caught in rain the other day with no windscreen demister.

So after all that i`m actually wanting to know if anyone has a wiring diagram for the climate control in a VR of any kind ?

Anything would be greatly appreciated.

cheers
jason

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I'd be checking the wiring/connector to the climate control module in case it is not connected properly. Power is supplied direct to that module from fuse 1 (Orange White wire x2) fuse 17 (Pink Green wire) and Fuse 9 through the primary coil of the ventilation fan relay (yellow black wire) and the earth for that module is a black white wire according in a wiring diagram I have - so suggest checking those connections as a starting point.

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Andrew

thank you for the info & wiring diagram dirdsme greatly appreciated.

will do all you suggested, hopefully will sort it out.

i take the module is the climate control unit in the dash ?

many thanks
jason

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yes that is the module - the complete assy with switches and LCD display...used in a few models...parts for VRs are very affordable you can get a replacement from $29 upwards...

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Andrew

will look into all of it tomorrow & let you know how i go.

are those modules on ebay or elsewhere ?

cheers
Jason

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yes ebay or gumtree seems to be plenty around...hopefully just a poor connection or earth...

https://www.gumtree....

https://www.gumtree....

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Andrew

g`day Andrew thanks for the links.

i`ve been over the wiring today,unfortunately no loose wiring or connections.

have checked what you originally said with the wiring & fuses. i have power at fuse 1 & both orange/white wires, power at pink/green wire but fuse 17 is vacant.i have power at fuse 9 but no power in yellow/black wire, so i guess this is where the problem is.

also with the module if you turn it to the side or upside down something is rattling around in there,i`m guessing it`s not supposed to do that.

if you have any more suggestions or anything it would be greatly appreciated.

cheers
Jason

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ok so if you have 12V at orange white wires and the pink green at the actual connectors that is good - you are getting power to the module. The other thing to check is that you have a good earth - so with power off check the continuity of the black/white wire to a good earth - you should have zero Ohms or close to it. The yellow/black won't show power - it provides the current path through the relay - so the module must be proving a ground to that internally- but if the connector is disconnected - you should then get power to it - as with no current flow there will be no voltage drop across the relay coil. I would think that if the fan relay wasn't working it would not stop the whole module from not displaying anything.... You could test that part of the circuit by connecting the yellow/black direct to earth via a bypass lead - that should activate your vent fan..if the vent fan doesn't come on then either the relay or fan has a problem....Overall though if you have power and earth to the module - the next logical step would be to try another known working module. I wouldn't be expecting anything to rattle in the module either...if a replacement module does not fix the problem then I've run out of ideas....

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Andrew

thanks for all your help Andrew. had the weirdest thing happen, my wife came to see me while i was in hospital last week. comes up & tells me when she pulled into the parking space the car cut out & wouldn`t start. went down & it turned out to be the engine fuse in the relay block under the bonnet. only had a 5A higher fuse to put in, after i came home i got her to try the climate control out of curiosity & low & behold the bloody thing turned straight on & works on every function. got me buggered.

cheers
jason

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yep that is strange - hopefully it stays working...and you don't have anymore electrical gremlins...

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Andrew

yes definitely hope it keeps working,don`t want to get caught in the rain again with no windscreen demister.

i did read somewhere that the harness to the module has 2 "clicks" to seat it properly, whether this happened when i put it back together i don`t know but it works !

Jason

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