[kfp314]

Thanks! I had the same blower motor problem on a 07 Altima and the changing the relay fixed it. You saved me a lot of time and money. Much appreciated!

 

[abhikhare7]

2007 Altima SE (6-cyl)

Will this also work for the 3.5L 6-cyl version of the 2007 Altima? Just want to make sure. My blower motor takes its own sweet time to turn on. Sometimes it turns on immediately and runs for 2 seconds before turning off. I am guessing my motor itself is fine and the relay is the problem.

Will the same part (25230-79942) fit me too?

 

[eddy]

The 1st relay closes to the door is for the fan blower and the next one is for the radio. Does anyone know what the other 2 relays are for??

 

[Rob481240]

I replaced the relay myself, but still would experience the same issue as Nolimits below.

I ended up taking my 08 Altima to a local mechanic- just to see if they've seen the issue before. He mentioned that the system was freezing over, so he ended up pulling 3 ounces of "freon overfill from (the) system" which is how he typed it on the invoice. I've driven it for a couple days now and it's working great when before it would take less than 10 minutes for it to act up. The air flow does not slow down by itself. Well worth the $30 AC check. Wanted to pass along the info in case anyone was experiencing the same issue.


Quote:
Originally Posted by Nolimits
I have another problem in my 2010 Altima base model, which looks related to blower motor, it will turn on fine (fan speed set to 50% or lower), however, after 5-10 minutes, air flow will slow down gradually then stop flowing. When this happens, i turn the fan control to max then air starts flowing again, then i lower it again because its too high, after 5 or so minutes, air flow slows down and gradually stop again. Is it the relay or something else? Did anyone experience this?

 

[dacarter]

I replaced the relay today on my 2009 and it didn't fix my problem. Since it seems like a common problem, probably not a wasted effort though.

My problem is that the fan blows, but the correct vents don't open. Seems like a damper problem. When you want AC blowing in your face, you can hear it blowing inside the dash, but the dash vents just don't open. Simiilar problem with heat, can't always get it to blow on your feet. I've found one YT video that shows the problem, but there's no fix in the video. Other than that it doesn't seem like a common problem since no other threads here that I can find.

I'm thinking control head replacement is next. Any other ideas?

 

[jionwu21]

The 1st relay closes to the door is for the fan blower and the next one is for the radio. Does anyone know what the other 2 relays are for??

I created a video for everybody! Replacing the Relay worked!!! Thanks!!

<a href = “https://youtu.be/pAJglJJAtZo”> 2007 Altima Replace Motor Blower Relay</a>

 

[jionwu21]

Replacing the Motor Blower Relay worked for me!! I created a video to help others!

https://youtu.be/pAJglJJAtZo

 

[bgalte]

Yep - I have a 2007 3.5 liter and followed the directions on this thread - problem fixed!

 

[Dnschmidt]

Just wondering if you found what the issue was with this issue as I’m having the same trouble on my 2007 Altima?

 

[Dronewolf]

Hey guys, new to the Altima forum. I just wanted to pop in and say "Thank you" for the excellent instructions on fixing this blower relay issue. I just replaced the relay fuse on mine and it's running like a top! Can't believe I went through an entire Idaho winter with such an inexpensive quick fix being out there. (yes I know, "Google is my friend"..... but I'm stubborn) lol
Thanks again guys! It's much appreciated.

 

[Hoki]

Hi, I was able to fix the problem, the blower motor works great now. Here's what I did. That relay is located in the instrumental panel fuse box ( behind the fuse box). Remove the cover for the fuse box, you'll see the fuses, unscrew one screw next to it, and there's one more screw to be removed, remove the panel below the steering wheel, it's very easy - just pull it down. Now you have easy access to fuse box, on the other side of the box there are 4 blue identical relays ( part number ends on 42 . there's about 10 digits number),. Relays are located like this... ** ( relay1, space, relay 2 relay3, space, relay 4). blower motor relay is relay 1. Ideally would be to replace it ( you can buy it at the dealership or online). What I did, i replaced relay 1 and relay 2 ( relay 2 is for radio),,,everything is working great both blower motor and radio, if one day radio stops working i know what to fix. But I need heater more than radio, specially living in Minnesota.
Let me know if you have questions.

So I have done all of this except check voltage to the blower motor. I have swapped around relays and put in a new blower motor. What would be next steps? Blower motor is not working at all?

 

[VStar650CL]

Altie blower motors are brushless and that makes them pretty simple to diagnose. The fat White/Blue wire at the blower should have battery voltage at all times, if not the problem is upstream in the fuses (there are always 2 in parallel), relay, or wiring. The fat black wire has to have a good ground, if it reads anything above about 0.05V when connected to the blower then your ground is bad. The small Blue/Yellow wire is the speed signal from the control head, the voltage should change as you change the blower speed. The brushless motors work opposite from a normal VBC, a lower voltage makes the fan run faster. If the voltage is "stuck" and doesn't move, take the connector loose and re-test the voltage. If it moves when disconnected then the control circuit in the blower is fried, if it still doesn't move then you either have an open in the Blue/Yellow wire or your control head is bad.