Mazda ecm replacement

Jamie Owner/Technician South Carolina Posted   Latest   Edited  
Unsolved
Driveability
2012 Mazda 3 i 2.0L (7) 5-spd (FS5A-EL)
Crank / No Start

Another shop replaced ecm asked me if I could get it running. Used ecm was installed. I have never had any dealing with Mazda programming. So I did what research I could and seems like all I have to do is a parameters reset. They already had a locksmith relearn key, they said. I have tried vthe parameters reset with autel and it keeps giving me a communication error after I have entered the VIN. Any help would be appreciated. Or if I need to ship it back to the shop I will

I am really just trying to learn a little more about the Mazda programming aspect. 

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Eric Owner/Technician
Wisconsin
Eric Default
 

VIN? Year and model at least?

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Jamie Owner/Technician
South Carolina
Jamie Default
 

Sorry I input that info. It didn't post it. 2012;Mazda 3 2.0 Jm1bl1ugxc1559552

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Edgar Owner/Technician
Illinois
Edgar Default
 

How many keys are in the system ?? Mazda requires 2 keys to start.

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Jamie Owner/Technician
South Carolina
Jamie Default
 

I have one key. It is not a smart key

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Chris Technical Support Specialist
New York
Chris Default
   

Mazda MMP software can code the vin and perform Parameter Reset, but Pats functions for Mazda requires In/Outcode which requires LSID on their site to purchase. If the locksmith can program keys to the vehicle he should be able to perform parameter reset functions or help you purchase in/outcodes for use in MMP Are there any codes in the vehicle??

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Jamie Owner/Technician
South Carolina
Jamie Default
 

No codes pertaining to theft. Has a mass air and iat code. The other shop had a very reputable locksmith do the key. The problem I have is a incorrect Vin in the ecm compared to other modules.

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Lesage Technician
Michigan
Lesage Default
 

Don't know is this is any help but on Ford it seems like you need the factory tool for parameter reset. I believe Chris is on the target.

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Michael Mobile Technician
Utah
Michael Default
 

Hi Jamie, You need to do a Programmable Module Installation. This can be done with the Mazda software or an aftermarket tool. I normally use the Autoland Scientech to do this but others may do it as well. The PMI will correct the VIN. You can then do the parameter reset. I use the Auto Pro Pad to do parameter reset and learn keys.

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Jamie Owner/Technician
South Carolina
Jamie Default
 

I did the pmi with autel. After it completes it tells me to correct Vin in ecm. Then I go to parameter reset and it goes through the process and after I enter the VIN it pops up communication error.

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Michael Mobile Technician
Utah
Michael Default
 

You may need to invest in the Mazda J2534 software on this one. Hopefully you can still buy it short term.

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Philip Educator
California
Philip Default
 

It's 44.95 and behaves just like Ford.

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Jamie Owner/Technician
South Carolina
Jamie Default
 

Dumb question. Do I need the old pcm plugged in when I start the PMI. I have had the replacement connected the whole time

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Chris Technical Support Specialist
New York
Chris Default
 

If you pull the data (start with the old module connected) it should transfer the VIn and other build information to the new module. I am not accustomed to using non OEM software but I assume other tooling will work from the original module as well.

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Lesage Technician
Michigan
Lesage Default
 

With the Autel yes. Just plug the old PCM and start the process. The scanner will direct you to turn the key off and install new module. Leave scanner connected the whole time. But I think you'll need Mazda software or j2524 to do parameter reset.

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Anthony Technical Support Specialist
Pennsylvania
Anthony Default
 

Hi Jaime: It's been a while but two things come to mind. I could be mistaken though. 1: You'll need the InCode for both the IPC & the PCM. Don't change screens on your tool before entering the InCode or the OutCode will change rendering the InCode you have incorrect. 2: As far as I know, you cannot clear Keyword on a Mazda once it is established (unless you go off of the reservation and…

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John Owner
New York
John Default
 

Guido, I have done used PCM's on Mazda vehicles up to 2015 so far with Mazda IDS. No issues with Incode/Outcode.

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Chris Technical Support Specialist
New York
Chris Default
 

The early Mazda Immobilizer system (football shaped keyhead) had that issue, That was the one you had to count flashes and flip the key to learn the transponders. (early 2000's MPV & 626) After they switched to In/Outcode systems that has not been an issue.

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Jamie Owner/Technician
South Carolina
Jamie Default
 

I got nowhere with this one. I sent it out the door.

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Anthony Technical Support Specialist
Pennsylvania
Anthony Default
 

Hi Chris: IIRC, my 2011 Mazda 3 5-door is the way I described. Granted, the 5-door is a different beast. Guido

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John Owner
New York
John Default
 

Chris, I have had many run ins with those early systems. Usually after a locksmith has given up. They can be challenging. The Lucas system with converting serial number to pincode and then key insertion with lamp flashes would test anyone's patience. There are various work arounds for these systems. Thankfully, these only lasted a couple of years in the early 2000's. The incode/outcode has…

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