How To Remove / Replace Temperature Sensor Engine Coolant Switch 2003-2007 Honda Accord | DIY Guide

This is a DIY auto repair tutorial guide on how to remove, replace and install temperature sensor / engine coolant switch on Honda vehicles. This step-by-step instructions by young mechanic Aiman was done on a 2003 Honda Accord 2.4L (which is the same as year 2004, 2005, 2006 & 2007 Honda Accord DX LX & EX, and may be similar to Acura and other Honda models such as Civic, CRV, Element, Odyssey & Pilot.

If you have OBDII trouble code P2183 or P2185 then Engine Coolant Temperature also known as ECT sensor switch may have to be replaced. Removal and replacement is actually very easy and can be done in several ways. The easiest would be to jack the car up, remove the bottom shield partially, use 17mm socket or 3/4 inch and remove the switch. It can also be done by removing from the top by first removing the fan / motor shroud. We're showing it from the top because we also need to replace the radiator fan motor.

Draining the coolant first is not really necessary, although you may lose some coolant because the switch is essentially a drain plug.

It is best to use genuine part even if it is used, but aftermarket parts are always cheaper and some would even come with years of warranty or even limited lifetime warranty, but make sure you get the sensor with the right temperature setting.

If you want to know how to test or diagnose your temperature sensor to see if it is working, bad or faulty please watch the following video:    • How To Test Coolant Temperature Senso...  

Today's engines monitor virtually every function to ensure your vehicle runs strongly and efficiently every day. One of the most important systems to monitor is the cooling system, which includes the radiator, water pump, radiator fan, coolant lines, and overflow tank. The coolant temperature sensor, also known as the coolant temperature switch, is the engine management system that monitors the temperature of the coolant and relays this information to the ECM. When the sensor is functioning properly, it will tell your on board computer if the temperature is too high, alerting the driver that a problem exists by illuminating a warning light on the dashboard.

The coolant temperature sensor (switch) utilizes electrical resistance to measure the coolant's temperature. When the signal is sent to the ECM, the computer adjusts the vehicles ignition timing, fuel flow, and other factors that trim or enhance performance based on the coolant temperature.

Due to the fact that engine temperature plays a vital role in the overall performance of any vehicle, having a properly functioning coolant temperature sensor is essential. If you discover that the sensor is failing, you'll have to replace this device by following the step-by-step instructions in the video above.

Thanks for watching...

This video is presented to you by young mechanic Aiman-Imran Zulhilmi Anuar. Please be sure to watch other DIY auto repair videos on Aiman's EyeOnAiman youtube channel & facebook page.

Disclaimer of Liability (No Responsibility): Please exercise due diligence with information obtained from this video. The information contained in this video is for entertainment purposes and should only be treated as such. I shall not be held liable for any damage to vehicles, tools, equipment or person resulted therein. This channel assumes no liability for property damage or injury incurred. You will use such information at your own risk. Aiman recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Any injury, damage or loss resulted from using information in this video is the sole responsibility of the user and not EyeOnAiman.

Recording Date: July 27, 2018
Video URL:    • How To Remove / Replace Temperature S...