How to Fix Engine Coolant Sensor Toyota Prius Easy Way - P1116

How to Fix Engine Coolant Sensor Toyota Prius Easy Way - 2004 - 2009 Prius Error codes P1116
This is an easy step by step how to fix and reset Engine Coolant Sensor in 2004 to 2009 Toyota Prius.
If you get the error codes P1116 together with your heater blowing cold, please watch the video to the end.
2004 2005 2006 2007 2008 2009 Toyota Prius Gen 2 Gen II heater problem
You may need to burp the cooling system. See my other video here:
• How to Fix Heater blo...
Burping or bleeding trapped air require some patience because Gen 2 Toyota Prius Internal Combustion Engine (ICE) cooling system has a Coolant Heat Recovery Storage Tank Canister (CHRS). So before you can get ride of air inside the heater core, you must first get rid of the air inside the CHRS.
Air pockets inside the CHRS can be removed by activating its pump using relay to force coolant into Heat Storage Tank thereby removing any trapped air there. CHRS rarely malfunctions, but its pump may, and you might get DTC P1151 if the water sender temperature sensor malfunction.
After CHRS has been bled, the next step is to remove trapped air (or air pockets) inside the heater core. This process involved turning the engine on without driving it (putting in in test / maintenance / inspection / diagnostic mode), turning the heat to max allows the radiator fluid to circulate through the cooling system to ensure that all air bubbles are eliminated from the system. Remove the radiator cap, insert a large funnel (If you have) into the neck and the fill with coolant. If you do not follow the steps in this video. After the engine has reached operating temperature and the thermostat opens, open the bleeder valve and squeeze the upper and lower radiator hoses. This is what this video is all about. In this video I also showed how to do it even if you do not have a funnel.
As part of this video, I also show you how to idle the engine / keep the engine running continuously.
Keep in mind that the Internal Combustion Engine (ICE) cooling system is separate and independent of the hybrid inverter cooling system, I also show how to bleed the inverter coolant, in this video.
The ICE cooling system uses the same type of coolant as the inverter cooling system. Gen 2 was factory filled with Toyota Super Long Life Coolant (SLLC). SLLC pink is premixed, eliminating the hassle of mixing and the potential for error. Toyota Super LongLife Coolant (pink) is just regular ethylene glycol silicate-free premixed Phosphate-based Hybrid Organic Acid Technology (HOAT / OAT). It is Silicate, Amine & Borate free. This genuine OEM manufacturer recommended coolant from Toyota dealership is rather expensive. Alternatives such as Zerex Asian, Pentosin Pentofrost A4 or other HOAT/OAT red/pink Super Extended Life coolant from Valvoline, Peak, Prestone etc., available at your local auto parts stores such as Advanced Auto Parts, AutoZone, O'Reilly, NAPA, PepBoys and even at Walmart - can also be considered.
Thanks for watching and please watch other DIY and auto repair, how to remove, install, replace, repair and fix it ideas, guide, tutorials, and tools review videos on this channel.

[@themastertrader01]

what light was showing on dashboard before fix the light?

[@agevermoreinfinity20]

Sir, it has been 2 weeks since I followed your instructions and installed the coolant sensor. Unfortunately, I purchase an aftermarket product on eBay. I got less frequent codes. But the codes came back and would not go away. I thought that there might be a clog in the CHS tank pump. I got both a Toyota OEM sensor and pump from Pick-A-Part. I did the easiest job first - I installed the sensor in 15 minutes. Drove it for several hours to see what would happen. First, no codes at all! Second, the sound of the coolant pump was different. Instead of the whoop whoop sound that I got before, now the sound is a short precise pulse. I didn't expect to be able to hear the difference made by the sensor. Owe all of the success to you! I couldn't believe that I finally fixed it!

[@omar808kassab]

Did you install a new three way valve also?

[@Patientintime]

What the exact name of that senor or part number

[@RealNoor]

please rewatch the video. I litwerally started this video with oem packaging of the sensor and said the name out even though written on the package.

[@agevermoreinfinity20]

Excellent video well narrated. Never saw anybody mention that sensor in relation to p1116 code, but you. 😢Quick, precise and simple! Thank you Sir!

[@RealNoor]

Thank you for your comment and I'm glad I could help

[@camposvazquez]

​​@@RealNoorI agree excellent video... Do the Prius have 2 engine coolant sensors I saw another video where one is attached to the engine kzbin.info/www/bejne/gqKbi4Ssn7Bqisksi=qD9ZPcqFnhBmHPjV This is the video

[@beefyvvl]

Do you know the temp sensor for the inverter is?

[@RealNoor]

The temp sensor for the inverter is the one sitting near the wheel well on the driver's side you may have to remove the headlight to make it easy to access that one

[@romanswan2257]

Tysm🎉

[@RealNoor]

Yw🙏

[@nelsoncontreras2369]

How much the sensor

[@RealNoor]

Depend on where you get your part. I thank mine was about 60 from the local dealer.

[@and3188]

Amazon 35$

[@chrissoliday6400]

Ato zone 26

[@MrJeffdiddy]

​@@and3188you have a link?

[@MrJeffdiddy]

​@@chrissoliday6400you have a link?

[@TiktokYeap]

Is the problem with the engine valves or the sensor?

[@RealNoor]

The sensor.

[@teddybear2880]

Thank you mate 😂

[@RealNoor]

No problem 👍