Any Mazda mechanics on here? - TexasBowhunter.com Community Discussion Forums

trophy8 · 11-22-2021, 10:38 PM

Need help trouble shooting an issue on a 2016 Mazda 3 before I go get reamed at the dealer.

ECT sensor code came up. Changed it. Code won’t clear. I changed it myself. Unhooked the battery before I did it. Was told the code would clear after a few days. Did not. Mazda place used their scanner to clear it. Came right back on. Car is running fine. Want to make sure there’s no underlying issue. It’s my commuter car.

Prairieboy · 11-22-2021, 11:30 PM

Do you know what the code was for specifically or have the code number? Ie; open circuit, shorted to low/ high voltage, etc.

trophy8 · 11-22-2021, 11:53 PM

Quote:

Originally Posted by Prairieboy

Do you know what the code was for specifically or have the code number? Ie; open circuit, shorted to low/ high voltage, etc.

High voltage. I forget the number.

Big Lee · 11-23-2021, 04:48 AM

I believe those cars have 2 ECT sensors. 1 mounted on the lower portion of the radiator. Which one did you replace?

trophy8 · 11-23-2021, 04:11 PM

Quote:

Originally Posted by Big Lee

I believe those cars have 2 ECT sensors. 1 mounted on the lower portion of the radiator. Which one did you replace?

The one on the engine itself. Driver side. By the air intake on the head. I can’t find much info. I’ll hunt for the other one.

Prairieboy · 11-23-2021, 10:11 PM

I believe Big Lee is correct in there being 2 ect sensors. One for the gauge/temp light and one for the fans so definitelycheck for a secondtemp sensor. Also the manufacturers are notorious for grouping sensors together on the same 5 volt reference and/or ground circuits so it could a bad ground connection, damaged wire or another sensor/connection that is actually causing the issue and the ect sensor is the next sensor in the circuit so it's the one that pops the code.

Big Lee · 11-25-2021, 11:18 AM

T8 did you get this fixed?

trophy8 · 11-25-2021, 03:47 PM

I finally located the second one. I’ll fix it this weekend or Monday.

Kingfisher789 · 11-25-2021, 04:07 PM

https://static.nhtsa.gov/odi/tsbs/20...18476-9999.pdf

White Falcon · 11-25-2021, 04:08 PM

Check your gas cap.

Prairieboy · 11-26-2021, 07:02 PM

Let us know what the outcome is.

11-22-2021, 10:38 PM	#1
trophy8 Pope & Young Join Date: Dec 2006 Location: Georgetown Texas	Any Mazda mechanics on here? Need help trouble shooting an issue on a 2016 Mazda 3 before I go get reamed at the dealer. ECT sensor code came up. Changed it. Code won’t clear. I changed it myself. Unhooked the battery before I did it. Was told the code would clear after a few days. Did not. Mazda place used their scanner to clear it. Came right back on. Car is running fine. Want to make sure there’s no underlying issue. It’s my commuter car.

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11-22-2021, 11:30 PM	#2
Prairieboy Four Point Join Date: Oct 2019 Location: Cleveland Hunt In: Houston & Liberty	Do you know what the code was for specifically or have the code number? Ie; open circuit, shorted to low/ high voltage, etc.

11-23-2021, 04:48 AM	#4
Big Lee Ten Point Join Date: Apr 2014 Location: TX Hunt In: Central Texas	I believe those cars have 2 ECT sensors. 1 mounted on the lower portion of the radiator. Which one did you replace?

11-23-2021, 10:11 PM	#6
Prairieboy Four Point Join Date: Oct 2019 Location: Cleveland Hunt In: Houston & Liberty	I believe Big Lee is correct in there being 2 ect sensors. One for the gauge/temp light and one for the fans so definitelycheck for a secondtemp sensor. Also the manufacturers are notorious for grouping sensors together on the same 5 volt reference and/or ground circuits so it could a bad ground connection, damaged wire or another sensor/connection that is actually causing the issue and the ect sensor is the next sensor in the circuit so it's the one that pops the code.

11-25-2021, 11:18 AM	#7
Big Lee Ten Point Join Date: Apr 2014 Location: TX Hunt In: Central Texas	T8 did you get this fixed?

11-25-2021, 03:47 PM	#8
trophy8 Pope & Young Join Date: Dec 2006 Location: Georgetown Texas	I finally located the second one. I’ll fix it this weekend or Monday.

11-25-2021, 04:07 PM	#9
Kingfisher789 Ten Point Join Date: Feb 2017 Location: Austin. Jim Ned Creek Hunt In: Tivydale. Nix. Brownwood	https://static.nhtsa.gov/odi/tsbs/20...18476-9999.pdf

11-25-2021, 04:08 PM	#10
White Falcon Pope & Young Join Date: Dec 2008 Location: Holly Lake Ranch Hunt In: East Tx. and Anywhere I can!	Check your gas cap.

11-26-2021, 07:02 PM	#11
Prairieboy Four Point Join Date: Oct 2019 Location: Cleveland Hunt In: Houston & Liberty	Let us know what the outcome is.