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Ron
Ron, ASE Certified Technician
Category: Nissan
Satisfied Customers: 35490
Experience:  34 years of automotive Repair
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300zx: My manual defrost works on my 1987 Nissan 300zx but

Customer Question

My manual defrost works on my 1987 Nissan 300zx but the a.c won't come on none of the switches work but the manual defrost it's a digital climate controller
Submitted: 2 years ago.
Category: Nissan
Expert:  Ron replied 2 years ago.
Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.
The problem you are describing can be caused by any of the following ,
A/C Auto Amplifier
A/C Compressor Relay
A/C Compressor Relay Wiring
Air Conditioning (A/C) Low Pressure Switch
In order to determine what has failed you are going to need to run the enclosed test steps in the link below. Copy and paste the link to your browser to open and view it.
https://dl.dropboxusercontent.com/u/104923897/Climate%20control%20May%206.pdf