Last post on Jan 06, 2013 at 9:24 PM
You are in the Mazda Millenia
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Mazda Millenia, Sedan
#3227 of 4030 1995 mazda millenia 2.5 V6 96,000 "malfunction indicator light"
Nov 24, 2004 (2:38 pm)
the "malfunction indicator light" or check engine light is on indicating "a problem in the engine electrical system" per the owener's manual. no change in the car's performance, all systems appear to be working ok. only possible indication of a problem was a one time occurence of the transaxle "hold mold" being activated when I disengaged the cruise control. this happened several hundred miles ago. car has been trouble free. still runs great.
any ideas before I look for an answer from my local Mazda dealer.
Nov 26, 2004 (6:02 pm)
Do you have Autozone parts stores in your area? They will read the codes for you for free. My bet would be a bad "up steam" O2 sensor. But the code will tell you.
#3229 of 4030 Reset and see what happens
Nov 27, 2004 (9:39 am)
Per AutoZone and http://www.troublecodes.net/mazda/ ("Mazda Code Retrieval - Accessing Trouble Codes 96 & later are OBD2 systems"), the 1995 MM 2.5 V6 has OBD (located in front of the firewall), but requires a special tool to read.
So, since all systems appear to be operational, I re checked all things visual in the engine compartment and then followed the above web site's recommendations for clearing the fault. "Mazda Fuel Injected Models With OBD - Disconnect battery ground cable for a minimum of 10 seconds, then depress brake pedal five times to clear trouble code's stored in the memory". Drove it for 30 minutes with all systems off, no check light. I'll just start using things and see if the check engine light returns.
This 95 has been good to me so it is worth the effort to keep it on the road, I only drive it about 5K a year.
Dec 16, 2004 (7:40 am)
Looking for thoughts on this one.....
My question is this, if one were to use the Auto Climate Control function during the winter, it says the a/c is on. Now I know it is on to prevent the windows from fogging up, but is the compressor still engaged? If so, wouldnt that kill gas mileage if the a/c is on all the time, especially in the winter when gas mileage generally drops anyways?
Dec 19, 2004 (5:57 am)
Even when the weather is hot, the compressor only cycles on when needed. And yes, the compressor cycles on to use cold air for defrost.
Heat and A/C don't run at the same time unless something is malfunctioning.
#3232 of 4030 OBD codes P042X and P043X
Dec 19, 2004 (10:58 am)
I have a 2000 S and my car turns on the check engine light every once in a while. I use my Actron code scanner to see what's up, and turn the light off. I've done this three times in the last year and the code is always P0421.
A millenia service advisory says that the rear oxygen sensors are faulty, and that they should be replaced if these codes persist. I don't think that once every couple months is persistant, so I just turn the light off.
Folks, persistent means replace the sensors, don't start replacing cats, coils or anything else. Buy yourselve a scanner and turn the stupid light off yourself initially.
#3233 of 4030 Bose, Millenia S, and satellite radio
Dec 21, 2004 (8:59 am)
Does anybody know if Bose sound system in a 2001 Mazda Millenia S has aux input?
Iím thinking of getting satellite radio (Sirius) and would like to avoid the FM transmitter hook-up (I donít believe the sound will be as good quality as aux connection).
#3234 of 4030 Re: OBD codes P042X and P043X [wwbradley]
Dec 21, 2004 (9:21 am)
Or, if you don't want to spend $100+ on a scanner, just disconnect the battery....
#3235 of 4030 Re: OBD codes P042X and P043X [freebird]
Dec 21, 2004 (7:56 pm)
I'm not so sure that all codes can be erased by disconnecting the battery. I'll try that just as an experiment. The nice thing about the code scanner is that it tells you the code, nice information to have when you ask people here and look on the net to see what might be the problem.
Dec 27, 2004 (7:14 am)
I need advice from someone familiar with car stereos. Is there a way with the standard radio in the 99P to connect an ipod or similar device thru the cd changer input? I want ot avoid using an FM modulator if at all possible. I know the radio has cd changer conrols built in.