Z32 HVAC Dead

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
ChromeSkull
Posts: 10
Joined: Wed Jul 14, 2010 7:09 am
Car: JDM 300zx TT 2+2

Post

Hello all,
My Z32 had a wonderfully working HVAC system. Then 1 week after running it, it died :facepalm:.
The controls on the Side POD do not work at all, no Beeps, No Screen.
Which wouldnt be a problem since i last set it to 23 Degrees C. (nice for me)
Although the the other problem is that Nothing with it works. The "Auto Amp" (Computer thingy... yes i said thingy :D) does not do anything, the blower does not blow and the air mix doors do not move.

Since this problem occured i replaced my Mk2 controls & Computer with mk3 (i think) Controls & Computer. Which were tested before removing from the donor car and was in working order. So it cant be the controls or the Computer(i hope lol).
I have read most of the Online Factory Service Manual and done some of the tests mentioned there (as its not good quality).

The tests i have done are only related to power source and ground points. Pins 33 & 35 for 12v+ and pins 45&55 (i think) for ground. All are good. (12v to body ground for 33&35 and 0hms resistance from ground to body ground for 45&55).
Im not a total numpty when it comes to electrics as i have rigged up 3 switches to manually control the 2 air mix doors and the vent/defrost doors without the computer plugged in. But without the Blower motor working (havent found the correct pins yet) its going to get really cold really soon and driving at 60mph+ to get warm air inside the car wont work in the snow.

Any help will be muchly appreciated. It could even just be page numbers in the Factory Service Manual so i can have a look incase i missed something.
So please HELP before i go nuts :bowrofl:


User avatar
evildky
Posts: 14225
Joined: Sat Jan 31, 2004 9:23 pm
Car: 71 Datsun 240ZT
87 Nissan 300ZX N/A-T
06 Nissan 350Z GT
Toyota Tundra TRD RW
Location: Louisville, KY
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Post

you might want to find someone wiht a consult to plug in to the car, way more fomplicated than it needs to be

ChromeSkull
Posts: 10
Joined: Wed Jul 14, 2010 7:09 am
Car: JDM 300zx TT 2+2

Post

Thank you. I didnt realise consult would be able to check it. Now the hard part of finding someone local.


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