Every time I have a small company Jiffy-lube or my self changes the oil I get a check engine light after words. I take it in to toyota and they say that when the oil filter is replaced it does this. Then they reset it. Does anyone know how to reset this so I don't have to take it in everytime ? I have a 2003 HighLander V6.
Thanks,
Does the light say "Main't Req"? I have a 2004 Highlander and that is what it says. To shut it off in my car I just turn the key to the "ON" position so the Accessories are on, not the engine. Then hold in the trip reset knob on the dash (with the overall mileage of the car showing) for a few seconds and the mileage should blink and eventually reset... maybe 15 seconds.
If that does not work look in the manual. It should tell you what to do to reset it.
Its Not a Maintence One. I have tried what you described but it is actually a check egine light. I guess I should get the code off of it. A friend at work had the same problem after each oil change.
Thats an odd one. I havent come across that yet. Id be curious to see what code its setting since the obdII system really dosent have anything to do with monitoring oil.
this is an ez one, whenever you go to quiklube places they always chk the car over to try and sell you more stuff. everytime they chk the airfilter they pull the airbox up to high and the hose going to the ccv valve is pulled off. this will set a chk eng light within a day usually.
open your hood and unclip the airbox, youll notice that when you pull up on it, this hose will pull off.
i recommend just checking after you pull out of jiffy lube.
if thats what they told you (that oil filter causes it) at the toyota dealer in vegas, its obvious they could use some better techs out there.
thanks deekay140.
I just cancelled my appointment at the dealership because I was able to fix this myself. the hose going into the air filter wasn't hooked up, and this after I just got my oil changed 2 days ago by a small oil/lube place. After reconnecting the hose, the light was still on, so I reset the battery (with some help from a co-worker, since I couldn't have figured this out by myself) by disconnecting the positive terminal, and then reconnecting and the check engine light is now gone. Just wanted to share the info, hope this helps anyone else.
Cool, at least it was something easy. That fix would have probably cost you at least $100 at the dealer. Just so you know, when disconnecting the battery for any reason you should always pull of the negative side first.
Yep its a very common problem with the Highlanders, and no the dealer won't charge you the $75 diagnoses fee for that, or at least we don't. You wouldn't even need to reset the light, after fixing that problem the light will go out after enough drive cycles. Also, always disconnect the negative cable.
Hey, good post. I happened to change the oil and clean the K&N air filter in our '03 Highlander a couple of weeks ago and subsequently ran into the "check engine" light problem. I knew it couldn't have anything to do with the oil change so figured maybe some K&N oil from the filter was fouling a sensor downstream. I decided to check out the Highlander forum yesterday (I normally reside at the Tacoma forum) and came upon this post. Got home last night and checked the air filter box and what do you know, I found the hose to the PCV disconnected. Lesson learned! Saved me a trip to Toyota and the nagging from my wife to get it checked out.
Hello! I Googled this problem and found this forum. Went straight to your posts regarding the light issue. Went out to my 2003 Highlander and took the negative battery cable loose. Put it back on and wohlah! No check engine light. I have never taken my Highlander to anyone but the dealer for maintenance. I have my oil changed and tires rotated every 3k miles and have had my filters and fluids checked/changed. This was the first time my check engine light came on and it quite concerned me. I am a woman and have to stay abreast of auto issues just like this one or get ripped off. Thanks so very much for your valuable information that resolved my problem!
Be careful, the engine code may still be stored in the car's computer. No check engine light doesn't necessarily mean no problem. Driving with a CEL may cause major problems down the line if you don't get it checked out. You can have your CEL code pulled for free from an AutoZone or any other auto parts store.
This really was a good post, as was said before. This is the kinda stuff that makes this place so helpful at times. Keep up the great work and thanks for taking the time to share.
This has happened to me a lot on my 2002. After having it "fixed" at the dealer (with a $45 diagnostic), I finally figured it out. Of course, it took me several oil changes before I realized what was occurring. Doh! Now every time I have my oil changed at the independent shop, I check to see if they inadvertently disconnected the hose. When they check the air filter (requiring the housing to be removed), the hose becomes disconnected and they don't have the sense to know they've disconnected the hose. The check engine light would come on about two days later with too much time passed to associate this with the oil change. Now, each time I have the oil changed, I check to see if the hose is attached, then hook it back up if necessary. It is a very simple process, and can be done with pliers to squeeze the spring clamp. Once the hose is re-connected, the light will go out after about 2-3 days.
Will the CEL come back on if there is still the initial, unresolved issue with the engine? What does the CEL code reveal when pulled? I thought the light was associated with the emission control????????? Thanks for your input! This is an awesome site!
Will the CEL come back on if there is still the initial, unresolved issue with the engine?
Yes, a code or codes may still be stored in the computer with no CEL lit.
What does the CEL code reveal when pulled?
Just a number. You'll need to find out what the number(s) is/are and you can check online what the code means. Or you can come back here and post it up and we can help yah out.
I thought the light was associated with the emission control?????????
Not always. It always tells you that something is amiss with the engine, etc. but you need to pull the code(s) to find out exactly what is wrong.
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Highlander Check Engine Light
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