CHS Temp Sensor and P1150

Hi stealth..,

Pull the sensor if you can, and double check the wiring and connectors. That thermos is out there underneath the fender, and any impact there could easly tear the copper stranding within the insulation, and not show through. If its in the middle of the wires, it might be reparable. If its funny looking wire wire (not insulation) its a thermocouple, but most likely its a thermistor.

 

hmm. chs water pump had nothing to do with the p1150 code...

could be the coolant flow control valve or a clog/air in the system, or that sensor.

not the same as the engine coolant temp sensor. all the chs temp sensor does is detect that there is coolant flowing past it and that the coolant is hot.

since they opened the coolant system, there may be air in there. but from the sound of it, the code was present prior to you taking it in, right?

next is to verify the tank is storing hot coolant. when you know there's no air in the system, run the engine till it's hot, let it store hot coolant, and park the car overnight. come back the next morning, access the drain port on the bottom of the chs tank and crack it open a little bit. (get your hands out of the way.) look for a little steam as you run a little coolant out of it. then you know it is storing hot coolant and so then it would be either the sensor or the flow control valve. probably the temp sensor.

you haven't diagnosed the problem to arrive at the conclusion the sensor is bad, unless you're cool with shotgunning it.

 

got no connection to the dealer here anymore. call up your local parts department.

 

Hello
I am having same code issue on 2004 Prius and started new thread P1150 revisit .....Question could the circulation path in the inverter/converter HS be a possible location for setting clog path code..?