At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
My 2003 nissan pathfinder heater/ac wont blow air the auto control panel lights up and looks like its working, but nothing. I tryed the relay and nothing. Is this the blower motor or the heater control switch?
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
There is a relay that powers the blower motor circuit . Left I/P fuse box , do you know where that is ? The relay is IGN 3 relay .
Fuse Block- I/P - Left
LF of the passenger compartment, behind the kick panel
IGN 3 RELAY
--
IGN3, HVAC CNTRL MODULE
IGN 3
10A
HVAC CNTRL MODULE, TC SW., HTD SEAT SW.
Does your car have Manual or automatic climate control ?
Well, I can't tell by your explanation if the knob stem is broken & just spinning around or if it feels normal and nothing happens.
So, I guess I would first have you check all the fuses labeled "AC" or "Heater". Might be just a blown fuse, but remember, fuses always blow for a reason. There are many things that can be causing your problem like the heater/ac fan speed relay or a broken wire, etc.
I don't how auto repair savvy you are but, Google "Mazda 3 a/c panel". You will see many things on that first page like inexpensive replacement knobs, etc. There are even several YouTube videos on how to gain access to your ac/heater control panel. There is a wealth of information there. If you are not a do-it-yourselfer, you can at least look through there to educate yourself before you take your car to someone. Being informed ahead of time is very valuable.
The owners manual gives a procedure for obtaining diagnostic codes from the Body Control Module (BCM) and displays them on the HVAC control display panel. Some things that may be at fault are, a defective heater pump, which will lead to an air lock in the system, or a defective blend air door motor in the heater and cooling unit assembly. It is system which can tax the patience of the best of diagnosticians.
Lack of Coolant wouldn't cause your AC to blow hot air.
You may have a vaccum leak in your dash board that is causing your heater to remain stuck.
If not this, then you will have to have your AC recharged. You can purchase a recharging kit from your local auto parts store! Fortunately, your vehicle can use the newer type of AC Recharging kits so you have many options!
the cooling fans on autos require a motor, a power wire , a fuse ..........and
relays. ( look under your hood for a black box with some 1 inch by 1 inch black square relays ) under the cover it will tell you what relay is for the fan. u can take another relay out of the same relay box and test the fan circuit ( as long as the pins look the same and the relay looks the same ) and plug it in and see if that fixes the problem........if it does, go buy a new relay ( remember to put them back where you got them from)
its either a blown fuse, a bad relay, or the motor finally gave up. try the fuses and relays first
Could be one of 2 things. It could be blower motor resistor or blower motor amplifier. If you have AUTO AC feature/setup, than it will be the amlifier. If you have manual AC than I would look at the resistor, but sounds like you have AUTOAC system, so get the amlifier checked. Its behind the glove box screwed to the air box assembly. 2 screws and its out. Hope this helps. Good luck and let me know what you found.
have no lights at night on heater controls
×