mechanic removed the computer under dash because he said that was why the check engine light was on and when he replaced it with another 1 i have no heat nor air how can this be fixed?


Asked by Sep 22, 2016 at 01:33 AM about the 1995 Mazda Millenia

Question type: Maintenance & Repair

the mechanic informed me that the reason the check engine light was on was
because of the computer going bad.  when it was replaced with another one
the air and heat haven't worked since.  I've tried another mechanic and said
he couldn't figure it out.  How can i fix this?

1 Answer


Check relay and or the fuses need checked for blown fuses or switch went bad or the grounds for it are bad or loose or The one he replaced it with had those issue so either get another used one or put the old one back in and live with light on or what I would do first is try the old one again and see if those things start to work again if so you know it was the computer he put and if not you no you need to look elsewhere.

Your Answer

Add photo

Related Questions

  • 1999 Mazda Millenia S Fuse 18 answers

    I have a 1999 Mazda Millenia S. It has a major TCS problem, it randomly comes on while driving and I have to kill the engine and restart to get it off. I want to pull the fuse, but the manual doesn't ...

    1999 Mazda Millenia 4 Dr S Supercharged Sedan


    Maintenance & Repair

  • how to reset the check engine light 8 answers

    How do you reset the check engine light on a Mazda Mellenia 2002?

    2002 Mazda Millenia 4 Dr S Supercharged Sedan


    Maintenance & Repair

  • I have a 2000 mazda millenia se. It is knocking, poor idle, less pick-up when driving. 19 answers

    The car has a rough idle, slow pick up when starting out at lights, stop signs, etc. While driving the car it shakes. It seems like the engine is straining. Also, the check engine light is on.

    2000 Mazda Millenia 4 Dr S Supercharged Sedan


    Maintenance & Repair

  • i have a check ingine light on and the codes read, p0170 fuel trim bank missfire, cylindermissfire 3 answers

    i have a check engine light on and i got the codes and they read p0170 fuel trimbank 1 missfire, cylinder missfire, what does that mean how would i be able to fix the problem? and when i go to start m...

    1999 Mazda Millenia 4 Dr S Supercharged Sedan


    Maintenance & Repair

  • air conditioning/ heat 22 answers

    Does anyone ever notice after a while when you turn off the air conditioning and turn it back on that it has a funny smell to it? I had to pay 250$ to have that fixed and it still smells

    2007 Mazda MAZDA3 i Touring


    Maintenance & Repair

Search Mazda Millenia Questions

Mazda Millenia Experts

#1 Steven Cisneros
Steven Cisneros
Reputation 680
#2 Keith12345
Reputation 380
#3 Tom Demyan
Tom Demyan
Reputation 220
View All

Related Models For Sale

Used Honda Civic"
1,147 Great Deals out of 59,092 listings starting at $995
Used BMW 7 Series"
193 Great Deals out of 5,866 listings starting at $2,995
Used Nissan Maxima"
495 Great Deals out of 24,226 listings starting at $1,500
Used Honda Accord"
1,265 Great Deals out of 78,694 listings starting at $1,400
Used Cadillac DeVille"
2,379 listings starting at $1,495
Used Ford Mustang"
739 Great Deals out of 41,066 listings starting at $900
Used Mazda MX-5 Miata"
131 Great Deals out of 4,853 listings starting at $1,995
Used Nissan Altima"
1,357 Great Deals out of 87,467 listings starting at $1,095
Used Toyota Corolla"
1,416 Great Deals out of 67,100 listings starting at $1,295
Used Mazda 626"
331 listings
Used Acura RL"
29 Great Deals out of 829 listings starting at $2,999
Used Acura TL"
301 Great Deals out of 7,023 listings starting at $2,395
Used Mercedes-Benz S-Class"
175 Great Deals out of 6,642 listings starting at $1,899
Used Mazda Protege"
376 listings starting at $2,500

Used Cars For Sale

2002 Mazda Millenia For Sale
51 listings starting at $4,995