HCivic2006

Hi all. I have a 4-door Honda Civic 2006 LX 1.8.

The engine light came on last week. The mechanic's computer gave error codes P2183 and P0111. I replaced the Engine Coolant Temperature sensor on top with a genuine Honda part. The engine light went away. Then today it came back on, then went off by itself, then it came back on and stayed on.

Today he got the following codes: P2185, P2183, P0111, and P0128. I did my research and these codes seem to be common for this car, but I havent found any conclusive solutions or answers as to what fixed the problem.

I found this useful: http://ww2.justanswer.com/uploads/Ho...201805_hyb.pdf. And the common opinion on the internet says it is a corroded or broken pin from the ECT #2 sensor at the bottom of the radiator, but I havent found any reports that confirmed the error codes going away after replacing the 2-pin head on the ECT #2.

Before I go ahead and replace the ECT #2 or the 2-pin head, does anyone know if this is most likely the ECT #2 sensor, the thermostat, or the IAT sensor?

I'm trying to repair this myself so any tips you can share would be muchly appreciated it. Thanks

ezone

Not sure why your post went where it did (invisible), but here you go.


I have fixed many of these.

I see you found the bulletin addressing all 4 of these codes appearing together.

Yes it will be due to ECT2, you will find either a bad sensor or leaking sensor and damaged wiring. (or a bodyshop hacked it up LOL)

You may need to clear the codes after repair.

HTH

HCivic2006

Thanks ezone
do you think I may be able to clean the corrosion off of the ECT2 sensor itself or its 2-pin connector? How would you recommend I do that?

ezone

Remove the wire connector and inspect the harness terminals first.

I'd guess better than 9/10 were just a faulty sensor.


Any in our shop with wire harness terminals damaged usually got terminals and wire replaced to ensure a positive and long lasting repair.

HCivic2006

my engine light just turned off by itself. it came on and off 4 times over the past 2 days. Could that be the result of just a faulty ECT#2 sensor or do you think it might have something to do with a faulty ECU?

ezone

Don't overthink this.

The PCM is damn relaiable.

HCivic2006

Replaced the ECT2 sensor and reset the engine light. It's been off for over a week and 700km. So I think that might have solved the problem. Even though when I took out the old ECT2 sensor it was still shiny and looked new without any signs of corrosion on it. Didnt notice much corrosion around the 2-pin terminal/connector or the wires either.

ezone

So it was a simple bad sensor, internal failure. Good deal!

Bluefish8

Any idea of the part number for this radiator sensor and companies that make it? I am having trouble finding it

ezone

Any Honda dealer can get it for you.


http://www.hondaautomotiveparts.com/

Look under 'radiator'