Need CLT troubleshooting advice - Toyota Yaris Forums

gboezio · 07-18-2013, 09:49 PM

After almost 2 years of having a once in a while cold problem, but it was mostly running fine, lately it happened more and more, ECU started again to throw codes, high idle...
So I took off the ECU and measured resistance between pin 97 and the CLT sensor found that it was bouncing around, I opened the ECU connector since I had resistance to vary by touching this aera, I pulled hard on the wire (when they are broken inside the insulation won't hold), nothing this is a very good wire, I don't have the tool to release the connectors, but now I measure 0 ohms all the time, so I have put it all back together and since then, it runs perfect, I think it may have been a badly crimped connector (insulation not totally pierced), I hate when I don't find evidence of the problem.

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07-18-2013, 09:49 PM	#6
gboezio Drives: Yaris 4dr 2008 Join Date: Nov 2008 Location: victoriaville,Qc,Canada Posts: 28	After almost 2 years of having a once in a while cold problem, but it was mostly running fine, lately it happened more and more, ECU started again to throw codes, high idle... So I took off the ECU and measured resistance between pin 97 and the CLT sensor found that it was bouncing around, I opened the ECU connector since I had resistance to vary by touching this aera, I pulled hard on the wire (when they are broken inside the insulation won't hold), nothing this is a very good wire, I don't have the tool to release the connectors, but now I measure 0 ohms all the time, so I have put it all back together and since then, it runs perfect, I think it may have been a badly crimped connector (insulation not totally pierced), I hate when I don't find evidence of the problem.