CEL for Mazda 3

[Melvinnn]

Hi guys,

i've been having CEL light up on my mazda 3. Its a 06 model.

CEL light up out of no where halfway while driving. happened twice including today.

diagnosd previously at a shop in sinming. told me might be gear box issues. but tell me will reset and see how. its been about a month or so until today it light up again.

any idea what could be wrong ? driving still feels normal, not much issue. mileage travelled is about 77k, EO changed less than 5k, ATF still looks clear and light brown.

should i return to the same shop to diagnose since i've been there the previous time ? or is there any recommendations ? anyone has experienced similar issues ?

thanks in advanced!

[Passion]

Hi guys,

 

i've been having CEL light up on my mazda 3. Its a 06 model.

 

CEL light up out of no where halfway while driving. happened twice including today.

 

diagnosd previously at a shop in sinming. told me might be gear box issues. but tell me will reset and see how. its been about a month or so until today it light up again.

 

any idea what could be wrong ? driving still feels normal, not much issue. mileage travelled is about 77k, EO changed less than 5k, ATF still looks clear and light brown.

 

should i return to the same shop to diagnose since i've been there the previous time ? or is there any recommendations ? anyone has experienced similar issues ?

 

thanks in advanced!

Think you should go back to Mazda Motors to get them diagnose the error code. Each error code got different meaning.

[Melvinnn]

cause its an 06 car already, will they bother about me ? how much do they charge btw ? should i just let them dianogse the code and see whats wrong and go out workshop to resolve the problem ?

[Latka]

cause its an 06 car already, will they bother about me ? how much do they charge btw ? should i just let them dianogse the code and see whats wrong and go out workshop to resolve the problem ?

 

i've heard that there are some work shops who have machine to diagnose error codes. Maybe some bros here can recommend.

[Jchuacl]

At least get Mazda motors to diagnose what's the problem first from the CEL code (take note of the code number as well).

 

Your ATF is light brown? Something is not right, looks like the ATF has deteriorated unless I'm mistaken about the ATF used for Mazda cars.

 

 

Hi guys,

 

i've been having CEL light up on my mazda 3. Its a 06 model.

 

CEL light up out of no where halfway while driving. happened twice including today.

 

diagnosd previously at a shop in sinming. told me might be gear box issues. but tell me will reset and see how. its been about a month or so until today it light up again.

 

any idea what could be wrong ? driving still feels normal, not much issue. mileage travelled is about 77k, EO changed less than 5k, ATF still looks clear and light brown.

 

should i return to the same shop to diagnose since i've been there the previous time ? or is there any recommendations ? anyone has experienced similar issues ?

 

thanks in advanced!

 

[Caravan]

You can easily get OBD2 code readers from ebay. Any decent workshop should have the reader. Interpreting it is another matter.

Unfortunately mazda distributorship changed hands.

[Melvinnn]

i've previously got a workshop to diagnose the problem, but they did not tell me the code, just told me its gearbox related issues.

 

hmm ATF is not ribena colour, its about light brown in colour when wiped on tissue, level looks fine though.

 

hmm if worse case scenerio, i'll have to go to mazda motors, but since they have changed hands, what do i do ? any workshops which specialises in mazda ?

[Silver_blade]

Can still go to Mazda AD....doesn't matter if they have changed hand or not.

[Passion]

cause its an 06 car already, will they bother about me ? how much do they charge btw ? should i just let them dianogse the code and see whats wrong and go out workshop to resolve the problem ?

Doesn't matter which year model. Once child of this parent, always child of this parent. You can get them

To diagnose for you, some AD requires you to pay, some don't. You can ask them to explain to you and go outside workshop do. Get a quotation from them first.

[Melvinnn]

i'm intending to go back to the workshop i went previously to check whats wrong again since i already paid up that time and told me to return if problem persists.

 

am just curious if they just reset the CEL and entertain me with some excuses, and CEL lights up again(maybe a month later but hopefully dont), will it cause any harm in the long run ? or would it be causing harm right from the minute the CEL lights up ?

[Charlesakl]

Go CITYAUTO to diagnose. Think most likely is O2 sensor kaput. Replacement is about $160 ea and there are 2 sensors.

[Happily1986]

i'm intending to go back to the workshop i went previously to check whats wrong again since i already paid up that time and told me to return if problem persists.

 

am just curious if they just reset the CEL and entertain me with some excuses, and CEL lights up again(maybe a month later but hopefully dont), will it cause any harm in the long run ? or would it be causing harm right from the minute the CEL lights up ?

 

the cel light is an indicator. it tells you that something's wrong. like what you said, if you reset it, it might come back so it is a little like burying your head in thr sand and ignoring the problem altogether. there IS a problem and whatever issue that causes the cel is still there no matter how many times you reset it. if you intend to drive this car till scrap in the light of crazy coe prices, dont take the chance. go back to the ad and get the proper diagnosis code. whether you want to rectify it there or outside is another decision altogether. don't be penny wise pound foolish.

[Kenken]

the cel light is an indicator. it tells you that something's wrong. like what you said, if you reset it, it might come back so it is a little like burying your head in thr sand and ignoring the problem altogether. there IS a problem and whatever issue that causes the cel is still there no matter how many times you reset it. if you intend to drive this car till scrap in the light of crazy coe prices, dont take the chance. go back to the ad and get the proper diagnosis code. whether you want to rectify it there or outside is another decision altogether. don't be penny wise pound foolish.

My mazda 6 same problems n AT light come out also since 6 months,many work shop advise to change gear box, but my dont agree. just reset by myself n take out the battery connector for 15mins n put it back. Today I bought MAF cleaner to clear MAF now anything go fine. Need to monitor more days.

[Bicolor]

At least get Mazda motors to diagnose what's the problem first from the CEL code (take note of the code number as well).

 

Your ATF is light brown? Something is not right, looks like the ATF has deteriorated unless I'm mistaken about the ATF used for Mazda cars.

 

i've previously got a workshop to diagnose the problem, but they did not tell me the code, just told me its gearbox related issues.

 

hmm ATF is not ribena colour, its about light brown in colour when wiped on tissue, level looks fine though.

 

hmm if worse case scenerio, i'll have to go to mazda motors, but since they have changed hands, what do i do ? any workshops which specialises in mazda ?

 

Jchuacl is right, ATF used for Mazda 3 shouldn't be light brown. ATF in good condition should be deep pinkish red. The ATF has probably deteriorated and isn't working well. Furthermore, since they say it is gearbox related, it's best to have it checked thoroughly and solved. Consult another workshop too if you want a second opinion.

 

It isn't good if a workshop simply resets and clears the code without solving the problem. This way, the problem will remain and grow more serious over time.

[Ckchong8]

My mazda 6 same problems n AT light come out also since 6 months,many work shop advise to change gear box, but my dont agree. just reset by myself n take out the battery connector for 15mins n put it back. Today I bought MAF cleaner to clear MAF now anything go fine. Need to monitor more days.

Clean the throttle body too, that should help

[M3oso]

Hi Mel,

 

My 06 mazda3 also got CEL 6 months back, just right after my purchased of a ODB2 scanner online (less than USD20).

I plug it in and gotten the error code, searched internet and noticed it meant one of the O2 sensor was faulty. I did tried restting the error code twice, but it reappear after few minutes.

 

I then went to scrap yard and salvaged a used O2 sensor at S$50, replaced the faulty one myself (the error did mentioned which one of the two O2 sensor was faulty).

 

Till now, I'm still very happy with my small investment and managed to solve the issue by myself. It is fun to DIY, else I will have to spend at least S$200 for parts and service.

 

 

 

For your case, since you don't have ODB2 scanner and don't know what is the error code, so noone can tell you what exactly the real problem of the CEL indicating on your car, you firstly need to know what is the exact error code, else we are just guessing for the most possible caused. This won't really help you. Trial and error may sometime hit the nails but not always...

 

 

I suggest you send your car to any workshop (city auto is fine) to scan for the error code, you have the rights to know what is the error code. Best if you present when the mechanic plug in the ODB2 scanner to check, take note the error code.

 

You don't have to decide on the spot on repairing immediately, just pay for the cost of scanning (maybe S$20 to S$50). You can then go and check the internet yourself (so no mechanic can bluff you). Thereafter, you may ask around the cost to replace and decide which workshop.

 

Just my 2 cents

[Kenken]

Hi Mel,

 

My 06 mazda3 also got CEL 6 months back, just right after my purchased of a ODB2 scanner online (less than USD20).

I plug it in and gotten the error code, searched internet and noticed it meant one of the O2 sensor was faulty. I did tried restting the error code twice, but it reappear after few minutes.

 

I then went to scrap yard and salvaged a used O2 sensor at S$50, replaced the faulty one myself (the error did mentioned which one of the two O2 sensor was faulty).

 

Till now, I'm still very happy with my small investment and managed to solve the issue by myself. It is fun to DIY, else I will have to spend at least S$200 for parts and service.

 

 

 

For your case, since you don't have ODB2 scanner and don't know what is the error code, so noone can tell you what exactly the real problem of the CEL indicating on your car, you firstly need to know what is the exact error code, else we are just guessing for the most possible caused. This won't really help you. Trial and error may sometime hit the nails but not always...

 

 

I suggest you send your car to any workshop (city auto is fine) to scan for the error code, you have the rights to know what is the error code. Best if you present when the mechanic plug in the ODB2 scanner to check, take note the error code.

 

You don't have to decide on the spot on repairing immediately, just pay for the cost of scanning (maybe S$20 to S$50). You can then go and check the internet yourself (so no mechanic can bluff you). Thereafter, you may ask around the cost to replace and decide which workshop.

 

Just my 2 cents

Thx Bro.

Think is PO772, change ATF oil n filter last month, ATF new sensor 4 months ago. Throttle also clean last month.

Clean the throttle body too, that should help

Thx Bro,

 

Clean last month n ATF oil n filter.

[Kenken]

Went to AD, they want $190.00 per light for checking n leave the car for whole day. At the end go other WS. change 6 nos. Solenoids sensor last saturday. Till today no problem yet.