P011A – Engine Coolant Temperature Sensor 1/2 Correlation

By BAT Team (Contact Me)
Last Updated 2016-07-29
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Code	Fault Location	Probable Cause
P011A	Engine Coolant Temperature Sensor 1/2 Correlation (Buy Part On Amazon)	-

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Keith

4 years ago

I have similar problem on a 2008 Silverado with a Duramax diesel P011A. I can’t figure it out

John D Harrington

5 years ago

I have a 2014 Mazda 3 with 2 temperature related codes . P2183 and P011A. The coolant sensor has been replaced but is not OE. I don’t know where to go to from here. go back to the mechanic and request an OE part or have them check wiring.

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Benjamin Jerew

5 years ago

Reply to John D Harrington

John-

There are two ECT sensors. Don’t just replace them. You have to test each one and its circuit. My guess is one of them may be defective or there is a problem with one of their circuits. By the looks of it, you might have replaced a perfectly good sensor. I found this diagnostic page for a CX-5, but I think this is the same engine? https://www.dropbox.com/sh/u877jw1v445217e/AACt4gDmRMKKnpiEIgkVDilCa/CX-5%20-%20Engine.pdf

-Ben