EricTheCarGuy Explains Check Engine Codes - P0118 Coolant Temperature Sensor High Input

EricTheCarGuy is here! He's visiting TRQ to explain check engine codes to you! In this video, Eric the Car Guy checks out code P0118, which has to do with the coolant temperature sensor in your car or truck. The full description of the code is "Engine Coolant Temperature Sensor Circuit High Input" which indicates a problem with the sensor itself. The process shown in this video will also work with Codes P0117 and P0119. Some symptoms you might run into with this problem are the cooling fan always being on, and the coolant never reaching operating temperature. Check out the video to learn more!

While TRQ strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. TRQ is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.

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[LIOTBs]

Eric the car guy is awesome! I'm glad he took my advice not to give up and just farm out the other parts. He is one of those people that cannot only do the job but do an amazing job of explaining and filming in a very professional and advanced way.

[Twistedoff]

If you didn't see the broken wire and still want to troubleshoot, with the car off, remove the connector that goes to the sensor. With a multimeter, ground the black lead to a good ground. Turn the key on but don't start the engine. Use the red multimeter lead to check the 2 pins in the connector for 5VDC. This will tell you which way you'll need to go next. If you have 5VDC, you're looking for a problem with the ground. Turn off the key and check the other pin for a good ground. Switch the multimeter to resistance. Your black lead is already grounded so use the red lead and put it on the other pin. It should read 0VDC or very close.

So, to sum it up, without buying anything, you've verified the wiring for the 5VDC circuit and it's integrity. If you have 5VDC and a good ground, buy a new sensor. If you're missing the 5VDC or ground, further tracing back in the wiring harness will be needed to complete your troubleshooting. Good luck.

[ocesar]

Eric
Your diagnostics seems to be easy and logical sense how repair and solve some. Thank you for instructions on p0118. God bless you.

[seanhealey]

Where's my goddamn digital confectionary? 😂 Good to see you back, Eric.

[wiimaster]

What kind of setup are you guys using for tubing the exhaust gas away? Genuinely curious.

[beardedg]

Wow Eric is with TRQ? Well now I trust the brand... I bought coils and spark plugs kit for my Honda pilot

[TheCatsa]

Very professional and well-done video. Hats off to you man. You seem very knowledgeable. In my case I think it’s either an air pocket by the thermostat or the thermostat is not closing all the way. 2004 4runner👍🏼👌🏼

[malachi]

My sienna 06 has code PO117, changed coolant sensor but code stay still should I reset the sensor ?.

[daynebenoit]

Love your 2003 Explorer Videos. You guys have anything on Doing both the Front and Rear Timing chains on the V6's?

[talon]

Had code P0118 on a 96 GMC Jimmy replaced the sensor (check engine light went off) but the fan still comes on as soon as I start the engine?

[dynoesaur]

How you doing, sir? I have a 05 Scion xb and a 03 tacoma 2.4 they both have a p0420 any idea?

[merlincalo]

@TRQ Hey Eric, thanks for the very informative video! I am getting this exact code on my vehicle. I have some questions for you. Is my vehicle safe to drive? I am wondering if the engine and coolant are actually running hot. When we tested while idling the engine the temp was fine at 180F. Though it’s not until I drive for awhile does the temp gauge on the dash eventually goes high in the red. I have to take another look to see if the wiring or ECT sensor is the issue. I can try to test the sensor with a multimeter which I have while it’s plugged in. This might be tricky, and check the wiring. If it is the wiring it did not show in the video. Though did you some how twist the wires together after splicing them? I am not sure if you can and should do that. Thanks! 🙏🏽

[mikeovanes]

Can you recommend me a good mechanic to fix my Benz E350 4 matic 2009 in New Jersey? thank you so much...

[richsmith]

I'm GLAD to see Eric back on Youtube

[victorromero]

How do you get the all thread bolt out from your stick

[beardedg]

Hey Eric you have a video for code p1399 now it hesitate and sometimes doesn't want to accelerate

[keithmahler]

Hey boss 2019 Ford fusion 2.5 I changed coolant temp sensor out new thermostat after a week p0116 code came back took it to Ford dealership they changed air intake sensor out one week later coolant temp over temp light back on not running funny or even overheating getting 5v at connector to im bout at my whits end this kid just bought this car for 15k fresh out of the Marines any help I would appreciate running out of ideas

[JohnJohn-wx]

Ur the coolest I've done everything u suggest and it works

[martacalderon]

How to replace front end pitarme and bar on 1996 Ford 150