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Can anyone help me to identify a sensor that’ is behind my engine and looks like it’s a sensor on one end and bolted into the transmission at the other. My Jeep has been in limp mode for the past two months, scanner is sending out PO777 and PO722 codes and as I am looking for bad wiring, I found this. It’s all rusted out and wires are brittle
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Thank you sandstone. I ran the scanner and codes PO777 Permanent solenoid B stuck on, and PO722 OSS no signal, does that mean replacing the transmission? When it’s running and I put it into a gear, I can feel the transmission kicking into gear but then the rpm’s go low until I go back into park then it idles fine. Won’t move but starts and goes into different gears. Any suggestions? I’ll replace the spark plugs tmw, and maybe try the solenoids, then the tranny flush, cooler filter and replace with right amount of cvt fluid. (Thanks to your recommendations yesterday)
 

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Hi Jackiekay, The wires don't look bad just a rusty bracket. Your patriot is not tripping a code for the O2 sensor (or inefficient catalytic converter code) so i would not replace the O2 sensor you have in the pictures above.

PO722 OSS code is the "Output speed Sensor" it's located on the transmission. I would start by replacing that sensor, and /or inspecting the wire/connector that goes to the OSS. This is an easy job that you can do yourself. Hopefully that will solve your P0722 problem. picture of the OSS below.
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If you really do have a problem with solenoid B stuck on (PO777). You should replace the fluid and filter(s) in your CVT ASAP and prey that fixes the problem. You can do yourself for about $130 bucks or have a transmission shop do it for around $350.

If that doesn't fix it then you might need some transmission work...the next step would be a valve body replacement (that's where the solenoids are located) . This is NOT a "do it yourself" kind of job, you will need to find a transmission shop for that kind work. And don't go to the dealer.

Let us know how it goes (or doesn't go).
 

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Hi Jackiekay, The wires don't look bad just a rusty bracket. Your patriot is not tripping a code for the O2 sensor (or inefficient catalytic converter code) so i would not replace the O2 sensor you have in the pictures above.

PO722 OSS code is the "Output speed Sensor" it's located on the transmission. I would start by replacing that sensor, and /or inspecting the wire/connector that goes to the OSS. This is an easy job that you can do yourself. Hopefully that will solve your P0722 problem. picture of the OSS below.
View attachment 91025



If you really do have a problem with solenoid B stuck on (PO777). You should replace the fluid and filter(s) in your CVT ASAP and prey that fixes the problem. You can do yourself for about $130 bucks or have a transmission shop do it for around $350.

If that doesn't fix it then you might need some transmission work...the next step would be a valve body replacement (that's where the solenoids are located) . This is NOT a "do it yourself" kind of job, you will need to find a transmission shop for that kind work. And don't go to the dealer.

Let us know how it goes (or doesn't go).
Thank you TKPat, I’ll keep you updated when I find out what the issues are.
 
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