Where Is The Ac Relay On A 2008 Nissan Altima?

Thus, the air conditioning in my 2008 Altima Coupe 2.5L with 69k miles NEVER goes cold and simply blasts hot air.

Before I go out and get a new one, I’m trying to figure out why the compressor’s clutch wheel won’t rotate. My friend, who works as an airline mechanic, used a high-quality gauge to check the pressure in the system and reports that it is within permissible limits.

The fuse in the fuse box beneath the hood is fine, according to my inspection. In the interior fuse block next to the hood release latch and the steering wheel, I couldn’t see a listing for the AC. Do I have it wrong? Additionally, I’ve seen listings for an AC relay on this website as well as Ebay.

Can somebody let me know where this relay is located? Before I purchase a new compressor, I’d prefer to replace it with an identical one.

We are currently experiencing a heat wave, and because my AC is broken and my driver’s side window won’t roll down, I could really need some advice.


You can get the best Air Conditioning Relays for your 2008 Nissan Altima online and pick them up for free at your nearby O’Reilly Auto store.

The relay is incorporated into the IPDM in the passenger side engine compartment, behind the front headlight.

Why won’t the air conditioning in my Nissan Altima work?

A refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor are the three most frequent causes of an AC problem in a Nissan Altima. A refrigerant leak might not be detected until the air conditioner stops blowing cold, though.

Do Nissan Altimas experience AC issues?

Nissan is known for producing dependable and secure vehicles. Unfortunately, even the best automakers occasionally fail to reach their objectives. Beginning with the 2013 model, Nissan Altima AC issues persisted through at least the 2019 model. Although air conditioning isn’t essential for the safe running of your car, it’s understandable that most people think it’s a must-have feature.

The majority of the AC system issues with the Nissan Altima are caused by four issues.

These issues include:

  • the regulator for the compressor
  • Leak of refrigerant
  • faulty electrical climate control
  • The AC compressor

The good news is that AC issues with Nissan Altimas may frequently be fixed. Some of these can be fixed rather easily, while others cost more money. We will talk about these problems and what you can do if you are having them.

How much does repairing the AC in a Nissan Altima cost?

Nissan Altima car AC repairs typically cost $245, which includes $112 for components and $133 for labor. Prices may change based on where you are.

On a 2015 Nissan Altima, where is the blower motor resistor located?

Under the dashboard, in the heater/AC compartment, is where you’ll find the heater blower motor resistor. The heater blower motor can adjust the fan speed thanks to the resistor. You won’t be able to adjust the blower motor’s airflow speed without this component. The blower on the heating motor could possibly stop functioning entirely. The fan will probably only run at its highest speed if the resistor has failed.

The blower motor resistor on a 2008 Nissan Altima is it present?

It’s possible that your 2008 Nissan Altima is the best car you’ve ever owned. Or perhaps you’re just having trouble keeping it highway-legal. Whatever the circumstance, Advance Auto Parts has the Blower Motor Resistor Connector item you frantically require.

What relay controls the AC?

When the air conditioning system is turned on, the compressor won’t engage if an air conditioner relay is malfunctioning. The capacitor relay and the starter relay are the two crucial relays in a typical A/C system.

  • The compressor, blower motor, and exhaust fan are all powered by the capacitor.
  • The compressor receives power from the capacitor through the starter relay.

When an air conditioner won’t turn on but makes a buzzing noise, the capacitor is probably damaged. Fortunately, it is simple to inspect and reasonably affordable to replace the starter and capacitor relays.

Is the Nissan Altima being recalled?

Some 2020–2021 Nissan Altima vehicles are being recalled by Nissan North America, Inc. The tie rod ball joint could separate from the steering knuckle if the tie rod ball joint fastener was not tightened properly. Tip: Not all vehicles from the same year, make, and model are subject to recalls.

What is the price of an AC relay?

A relay can be replaced for $100 to $300. To turn on and off, relays send voltage to the various components. This component regulates the system, therefore if the relay switch malfunctions, the system cannot turn on. Before a relay fails, you might notice that the home isn’t cooling properly. Without a working relay, the compressor cannot start. In the event that your relay malfunctions, a replacement is required as repairs are not available for this part.

The ECM relay where is it?

It has been determined that the ECM-power relay has to be changed. The engine main fuse relay control box houses the relay.

It is possible to take the broken ECM-power relay out of the control box by lifting it straight up and out of the socket.

After being inserted into the socket, the new ECM-power relay is checked for codes.

The ECM-power relay is put to the test on the road, and any codes are then examined.

Where is the switch for the AC low pressure?

One of the many components that an AC typically has is a pressure switch. It is only there for your safety. It is located on the low and high sides of the air conditioner. Estimating and managing the refrigerant pressure of the AC is its primary task.

There are two variations of the AC pressure switch: low and high. The low-pressure switch is the one on the lower half of your AC, and the high-pressure switch is on the higher side.

We will be concentrating on the low-pressure switch in this blog. To assist you maintain the operation of your AC, we will learn how to test a low-pressure switch.

What accomplishes the ECM relay?

Engine Control Module, or ECM, is the computer that enables your complete car to run on its own. Almost every other component in your engine is controlled by the ECM, which is monitored and supplied with power by the ECM power relay. The ECM must be powered up in order for your automobile to function at all, from determining whether to keep the cruise control position to monitoring the interior temperature. Your ECM won’t operate if your battery is dead.

Which relay is in charge of the blower motor?

The relay in a blower motor provides the energy necessary for the fans to circulate heated air. The blower motor relay functions as an on/off switch, beginning and ending the heating process in HVAC systems by managing the flow of current between the power source and the motor.

Why does the air conditioner in my car blast cold air instead of hot air?

Your expansion valve may be failing if your air conditioner alternates between hot and cold temperatures. The expansion valve releases pressure from liquid refrigerant, allowing it to expand in the evaporator from a liquid to a vapor form. The refrigerant flow may be excessively restricted or too uncontrolled if the valve is clogged.

That mechanical element or piece of equipment may become extremely cold if the flow of refrigerant is somewhat restricted. In fact, it’s so cold that ice or frost can form on the exterior of that portion or piece of equipment. Frost or ice buildup might exacerbate the situation inside the system. The outcome? Warm air is blown by your air conditioner. A significant refrigerant constraint will also make your air conditioner spew heated air.

Contrary to popular belief, cooling is not the result of excessive refrigerant flowing into the evaporator. You will have a “flooded” evaporator, which is a condition that is also associated with warm air.

The flow rate of the refrigerant can equalize while the system keeps attempting to modulate the expansion valve or cycle the compressor, at which point you might notice the air temperature beginning to reduce once more.

Keep an eye out for water puddles under your car since they may indicate a freezing issue and aid your expert in identifying the issue.

Ipdm Nissan: What is it?

The numerous loads that Nissan’s intelligent power distribution module (IPDM) regulates can do a self-test. This useful feature can make electrical diagnostics simpler. On Nissan and Infiniti automobiles, a self-test managed by a smart fuse panel could hasten the diagnosis of common electrical components.

How can I increase the cooling in my car?

When you first get in the car, it may be tempting to switch on the A/C and set the temperature to “max cool.” However, did you know? It’s not the best idea to turn on the air conditioning immediately away to make it cool. Your automobile actually pulls air from inside, cools it, and blows it back inside when your A/C is set to “max.”

The issue with that is that the air inside the automobile is hotter than the air outside when you first get in. (Remember how the interior of your car can reach almost 200 degrees Fahrenheit?) Without good reason, you’re making your air conditioner work harder. Start by drawing air from the outside of the car to feel cooler more quickly. Turn off the A/C button initially. Make sure the airflow is set to “outside” mode and set the fan to its highest speed.

Turn on the A/C and select the “recirculate” airflow mode once you’ve expelled some of the hot, humid air that has accumulated within the car outside. The A/C can now be set to “max cool.”

An AC compressor clutch costs how much?

The cost to replace an AC compressor clutch ranges from $700 to $1000 on average. Typically, labor prices range from $150 to $250, and a new compressor can cost anywhere between $450 and $850. It is typically advised to install a brand-new compressor rather than replacing the compressor clutch.

The compressor is one of the most essential components of the air conditioning system, making it one of the most expensive parts overall. But replacing it is not difficult.

It makes sense to replace the AC compressor if you intend to keep driving your car. However, you don’t want to cut corners and only replace the clutch, only to discover later that another component is faulty and that you still want a new compressor.

How can I tell whether the AC fuse is blown?

The outdoor air conditioning unit won’t work, which is the first indication that your air conditioner may have blown a fuse. A voltmeter is the ideal tool to use when looking for blown fuses. When troubleshooting your system, be extremely careful because you are working with live power. Having stated that, let’s get started on the procedures you need to follow to utilize the voltmeter to check for blown fuses:

  • To find your disconnect, look for a gray box that is typically placed to your house close to the outdoor condenser. Your disconnect is at hand.
  • Open the disconnect by either lifting or swinging the cover of the disconnect to the open position.
  • Expose the wiring: Once the disconnect has been opened, the wiring should be covered by another cover inside. Pull this apart to reveal the wire underneath.
  • Find the wires: Once the wires are visible, find the incoming and outgoing wires by locating the labels “line” (incoming) and “load” (outgoing) (outgoing). 110 volts are carried by both lines.
  • Set your meter: Make sure your voltmeter is set to the voltage (V) setting and that the display indicates “0” volts before continuing.
  • The leads should be positioned as follows: Take the wires (leads) from your voltmeter and attach them to the lugs (screws) of your disconnect, putting the red lead on the lug of the black “line” wire and the black lead on the lug of the white “line” wire.
  • Examine the voltage: Your voltage reading ought to show a number between 220 and 240. If you notice this, it signifies that your fuses are receiving electricity at the disconnect. If there is no reading, there might be a problem with the breaker panel, which your neighborhood electrician would need to fix.
  • Run the same test on the “load” side of the fuses if you noticed a voltage reading in the previous step. Once more, you ought to observe a reading of between 220 and 240. You have a blown fuse if you observe a voltage reading on the “line” side but not the “load” side.