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Mike V.
Mike V., Nissan Technician
Category: Nissan
Satisfied Customers: 25005
Experience:  Nissan factory trained and Certified Subaru Technician.
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Where is gh pressure switch located?

Customer Question

where is high pressure switch located?
Submitted: 11 months ago.
Category: Nissan
Expert:  Mike V. replied 11 months ago.

Hi there,

The switch is mounted on the liquid tank out on the condenser. I am sending a diagram to help you locate the switch.

Please let me know what more I can do to assist you today. Also, please remember to rate my answer, Just Answer does not compensate me for my time and resources. Follow up questions are included in the price of your question. If you are using the free trial, or have a subscription a rating is still required.
Thank you so much!

Customer: replied 11 months ago.
is this in the engine compartment?
Expert:  Mike V. replied 11 months ago.

The condenser is in front of the radiator, the close up is showing you the condenser, I would probably try removing the grill to get decent access to it.

Customer: replied 11 months ago.
I will report you - you did not answer my question
Expert:  Mike V. replied 11 months ago.

Sorry, the radiator is in the engine compartment

So is the condenser,


Customer: replied 11 months ago.
I have open this and pressure switch is not there - where is diagram that you prommised?
Customer: replied 11 months ago.
where is diagram?
Customer: replied 11 months ago.
please re-send
Customer: replied 11 months ago.
You did not help me - I want my money back - this is scam and I will report you and also will cancel my visa
Expert:  Mike V. replied 11 months ago.

I opened the link without a problem.

Here it is again. If you still can't get it, please let me know as the site may have an issue.

I am TRYING to help you. I can only type so fasst

Customer: replied 11 months ago.
There is also low pressure switch in system
Expert:  Mike V. replied 11 months ago.

Sorry, I can't do phone calls.

Is that a question or a statement?

Customer: replied 11 months ago.
Is any way to force clutch to engage?
Customer: replied 11 months ago.
Can you force clutch to come on?
Expert:  Mike V. replied 11 months ago.

Sure, you can run a power wire directly to the wiring harness and the clutch will kick on.

This is a very complicated system. The pressure switch is the only pressure switch on the system, it does both high and low pressure. Either will prevent the clutch from coming on.

If the condenser fan isn't working then the pressure will be to high and the clutch won't come on. If there isn't enough freon in the system then the clutch won't come on due to low pressure.

If the intake temp sensor inside isn't working then the compressor won't come on when it has the auto air system. If the ambient air temp sensor isn't working, then the compressor won't come on.

As you can see it's pretty complicated. If you don't know how much freon is in the system then that is probably the place to start.

Customer: replied 11 months ago.
OK condenser fans are working
This switch has 3 wires BLACK, PINK AND BLUE
What I need to connect to force clutch to come on?
Customer: replied 11 months ago.
there is lots of coolant in the system - no leaks
Customer: replied 11 months ago.
Where are intake and ambient temp sensors?
Expert:  Mike V. replied 11 months ago.

We are not looking for coolant, we are looking for freon.

If it's low, then the compressor isn't going to come on.

Intake sensor is inside the cabin where the little vent is next to the steering wheel ambient is out at the bottom of the condenser to the passenger side under the bumper.

After all your threats, this is as far as I am willing to go with you on this.

If you would like I will be happy to open it up to the other experts, but I think it's fairly saf to say no one else will reply.

Customer: replied 11 months ago.
OK - I am sorry trying to resolve this today and I do not have money to take it to the shop
Freon pressure is normal - no leeks
Which wires I need to jump on the pressure switch (black, pink and blue)
Expert:  Mike V. replied 11 months ago.

According to the wiring diagram the sensor stays in a neutral state until the pressure is to high or to low, then it sends a signal to cut the a/c via the communication lines and the IPDM. Jumping this isn't going to help.

Not sure how you can check the pressure without the clutch running.

usually we adjust the freon with weight, not pressure.

Have yo added any?

How exactly have you checked for leaks?