Skip the auto shop - Our mechanics make house calls

Q: How to fix AC on a '95 Infiniti J30

asked by on

I have a '95 Infiniti J30. My AC won't work unless I jump it with a relay. I tested relay and got a voltage, relay pulled with my pressure switch that is giving current AC is charged. What could be the problem?

Those Infinitis are electronic nightmares. All of that AC system is run by the computer. If you jump it and it works, watch my video.

I even have a video "how to fix your AC system cheaply." Just get a toggle switch. With a toggle switch with a fuse and a wire to that relay area, put it in a terminal, turn it on and off manually.

Why not? If it blows cold, great. If it doesn’t blow cold, then you’ve got serious problems with either the compressor or internally within the AC system. But if that works, just do that wire permanently to the toggle switch. Believe me, on the Infiniti that’s 21 years old, those electronic nightmares probably going to be ongoing in your future. I know that from working on them.

If you want to have this problem looked at for a more long-term diagnosis, have a certified technician come to your home or office to determine how to fix your AC system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I need roof rails installed on my Infiniti SUV

Hi there. As of now, I don't believe this is one of our service offerings. However, I've forwarded your inquiry to our service department, who will contact you further to determine if this is a service we can offer for...

Q: Suddenly starter doesnot work and after few minutes again it works

I would recommend replacing the starter relay in the engine compartment's junction box. The relay may have intermittent relay contact issues. The relay may not be the cause but is the least cost alternative to being stranded in the future....

Q: possible bad ecm if I reset it will that help me in finding out if its bad.

Hi there. From the description you provided, it is unlikely, the ECM (electronic control module) is at fault. First and most important, when disconnecting the battery, always disconnect the negative terminal first and reconnect last. Starting with the positive terminal,...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.