Toyota Prius C Coolant Temperature Switch (Sensor) Replacement at your home or office.

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Coolant Temperature Switch (Sensor) Replacement Service

How much does a Coolant Temperature Switch (Sensor) Replacement cost?

On average, the cost for a Toyota Prius C Coolant Temperature Switch (Sensor) Replacement is $218 with $28 for parts and $190 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$285.40Shop/Dealer Price$319.26 - $375.83
2012 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$445.94Shop/Dealer Price$529.97 - $736.97
2014 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$445.94Shop/Dealer Price$529.97 - $736.96
2017 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$245.40Shop/Dealer Price$279.25 - $335.80
2013 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$445.94Shop/Dealer Price$530.00 - $737.02
2015 Toyota Prius CL4-1.5L HybridService typeCoolant Temperature Switch (Sensor) ReplacementEstimate$245.40Shop/Dealer Price$279.29 - $335.88
Show example Toyota Prius C Coolant Temperature Switch (Sensor) Replacement prices

What is the Coolant Temperature Switch (Sensor) all about?

The coolant temperature switch, also called the coolant temperature sensor, is a switch that reads the engine coolant temperature and sends a signal to the engine control module, or ECM, to control other functions of engine operation such as the air-fuel ratio.

It is also called a switch because on some cars, it is used to turn on the engine cooling fan at a specific temperature. This aids in the engine warm-up process as well as keeping the engine at a safe operating temperature.

Keep in mind:

  • The coolant temperature switch is a crucial part of the cooling system. If faulty, it can cause severe internal engine damage due to overheating, incorrect air-fuel ratio, or incorrect ignition timing. It can also cause shorter life to the cooling fan motor or other electrical components of the cooling system.
  • Some vehicles are equipped with a separate sensor to display the engine temperature to the driver via the temperature gauge.

How it's done:

  • The Coolant Temperature Switch is verified that it needs to be replaced. The coolant is drained until the switch is exposed.

  • The defective Coolant Temperature Switch is removed by disconnecting the connector and removing it from the manifold.

  • The new Coolant Temperature Switch is installed into the mounting hole in the manifold and the electrical connector is reconnected. The coolant is then refilled.

  • The Coolant Temperature Switch is tested for operation, codes cleared, and retested to ensure all codes have been resolved.

  • The vehicle is road tested to ensure proper operation of the Cooling System.

Our recommendation:

If you suspect that your coolant temperature switch has failed, have one of our licensed mechanics come out immediately to diagnose the problem.

What common symptoms indicate you may need to replace the Coolant Temperature Switch (Sensor)?

  • Check Engine light on
  • Engine overheating
  • Cooling fan runs intermittently
  • Engine misfires, stalls, or idles roughly
  • Erratic coolant temperature

How important is this service?

This part, when faulty, could cause the fan to run intermittently or not at all, which in turns causes overheating or overuse of the cooling fan motor. Whenever overheating occurs, severe engine damage is a possibility.

The engine air-fuel ratio is what keeps it running smoothly. If the ratio gets skewed, the engine will have poor fuel economy and run poorly or not at all. The coolant temperature switch is important because it gives the ECM the information it needs to make this calculation and run the engine optimally. YourMechanic will be able to tell you if this part is performing correctly.

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Duane

25 years of experience
525 reviews
Duane
25 years of experience
Toyota Prius C L4-1.5L Hybrid - Car is not starting - Valley Center, California
Duane arrived early w/ a mask on, did a thorough 50 pt visual inspection, and also clearly knew how a Toyota Prius C’s 2 batteries (both in the backseat) and the inverter (under front hood) work. I also appreciate how he proactively brought along a brand new traditional 12 v SuperStart battery to replace the original 12 v battery that has now reached the end of its life after 8 years & 2 months, so I can start the engine & drive again. Prior to Duane’s arrival, I have had to use my back-up gas guzzling SUV to get around (I work long hours Mondays to Fridays), so having him come on an early Saturday morning to get my Prius running w/ a brand new 12 v battery was totally worth it! I am very grateful too that Duane confirmed that my lifetime warranty Green Bean Battery refurbished lithium battery pack has no issues (it was in fact the only reason why I was able to drive to fill up at a gas station & back home after my old battery got jumped by State Farm roadside assistance), yay! Thanks to Duane’s expert help & recommendations, I was able to immediately get my Prius C to a local Valvoline branch w/ my Valvoline discount coupons for its seasonal full synthetic oil change & cabin air filter replacement . Valvoline’s own thorough multi-point maintenance inspection (ex. Double-checking if engine air filter needed replacing; thankfully it did not; all my lights working, anything w/ seals fully sealed) & fluid top-offs (ex. Windshield wipers) also confirmed Duane’s findings & recommendations. I only need to have another oil change w/in the next 5K miles max. I have been able to drive the Prius all day to various appointments throughout Saturday all over North San Diego County without any issues and have been enjoying the gas savings & electricity storage ever since. My Prius C and I have been through a lot together (I’m it’s original owner since getting it brand new in 2013). I appreciate knowing that despite me living now in a distant rural neighborhood, I do not have to find myself paying for towing and shop storage overages to a dealership or shop - since a reputable mobile mechanic w/ hybrid maintenance experience like Duane knows 100% what can & should be done when a long-time hybrid does not start. If ever any of my vehicles have major non-start issues and could not be towed or self-driven to a reputable, costs-saving shop (my rural home is simply too far from everything) for service at a day & time that suits my busy schedule, I know I can count on Duane to help me. Thank you Duane & YourMechanic for the timely & professional help w/ the Prius C!

Joel

11 years of experience
157 reviews
Joel
11 years of experience
Toyota Prius C L4-1.5L Hybrid - Air Filter - Corinth, Texas
Joel was very professional and knowledgeable. We weren’t sure for a while what the issue was with my car. Now it runs like a champ. Thanks

Sean

7 years of experience
19 reviews
Sean
7 years of experience
Toyota Prius C L4-1.5L Hybrid - Oil Change - Somerville, Massachusetts
Friendly and super fast! Didn't even complain about the rain, I would definitely hire him again!

Daniel

11 years of experience
230 reviews
Daniel
11 years of experience
Toyota Prius C L4-1.5L Hybrid - Battery - Chicago, Illinois
Took care of issue quickly

Excellent Rating

(79)

Rating Summary
76
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Number of Toyota Prius C services completed
869+
services done by our mechanics
TOTAL NUMBER OF EXPERT Toyota MECHANICS
1600+
experts on our platform

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