What is the function and importance of the Coolant Temperature Sensor in the cooling system of a 2002-2006 Toyota Avalon?

The Engine Coolant Temperature (ECT) sensor is a thermistor that changes its resistance based on temperature variations, affecting the voltage signal sent to the PCM; as the sensor temperature decreases, resistance increases, and as the temperature increases, resistance decreases, with any issues in the ECT sensor circuits triggering a diagnostic trouble code. Begin by ensuring the ignition key is in the OFF position, then drain approximately one gallon of coolant from the cooling system. Next, disconnect the electrical connector and carefully unscrew the sensor. When installing the new sensor, wrap its threads with Teflon sealing tape to prevent leakage and corrosion, and remember that installation follows the reverse order of removal, taking care to handle the ECT sensor delicately, as damage to it can impact the entire fuel injection system.

Genuine Toyota Avalon Coolant Temperature Sensor

Coolant Water Temperature Sensor

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8 Coolant Temperature Sensors found

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Toyota Avalon Sensor, Water Temperature
Part Number: 89422-35010
$63.12 MSRP: $88.98
You Save: $25.86 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Comment: (FOR E.F.I.)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK, MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Sensor, Water Temperature
Part Number: 89422-33030
$63.12 MSRP: $88.98
You Save: $25.86 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Sensor, Water Temperature (For E.F.I.); Coolant Temperature Sensor, Temperature Sensor
- Comment: (FOR E.F.I.)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2018 Toyota Avalon | Limited, XL, XLE, XLE Premium, XLE Touring Or Touring, XLS | 4 Cyl 2.5L, 6 Cyl 3.5L | 2ARFXE, 2GRFE; AVX40L-AEXGBA, AVX40L-AEXPBA, GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA, GSX40L-AETGKA, GSX40L-AETPKA, GSX40L-AETQKA
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Toyota Avalon Switch, Temperature Detect
Part Number: 89428-41010
$122.42 MSRP: $174.03
You Save: $51.61 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Switch, Temperature Detect, NO.2
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK, MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Switch, Temperature Detect
Part Number: 89428-21010
$135.61 MSRP: $192.79
You Save: $57.18 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Temperature Sensor, Temperature Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2000-2004 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; MCX20L-AEPGKA, MCX20L-AEPGKK, MCX20L-AEPNKA, MCX20L-AEPNKK, MCX20L-AESGKA, MCX20L-AESNKA
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Toyota Avalon Sensor, Water Temperature
Part Number: 89422-06010
$61.58 MSRP: $86.81
You Save: $25.23 (30%)
ADD TO CART
Product Specifications
- Other Name: Sensor, Water Temperature (For E.F.I.)
- Comment: (FOR E.F.I.)
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2005-2007 Toyota Avalon | Limited, XL, XLS | 6 Cyl 3.5L | 2GRFE; GSX30L-AEAGKA, GSX30L-AEANKA, GSX30L-AEAPKA, GSX30L-AETGKA, GSX30L-AETNKA, GSX30L-AETPKA
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Toyota Avalon Sensor, Water Temper
Part Number: 89422-33040
$60.99 MSRP: $85.98
You Save: $24.99 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Manufacturer Note: MEXICO SPEC
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2022 Toyota Avalon | Limited, Touring, XLE, XSE | 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFKS, A25AFXS; AXXA55L-AEZGBA, AXXA55L-AEZPBA, AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA, AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA, GSX50L-AEZGBA, GSX50L-AEZPBA, GSX50L-AEZQBA, GSX50L-AEZSBA
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Toyota Avalon Sensor, Water Temper
Part Number: 89422-47010
$63.47 MSRP: $89.48
You Save: $26.01 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Water Temperature (For E.F.I.); Coolant Temperature Sensor, Temperature Sensor
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 2019-2022 Toyota Avalon | Limited, Touring, XLE, XSE | 4 Cyl 2.5L, 6 Cyl 3.5L | 2GRFKS, A25AFKS, A25AFXS; AXXA55L-AEZGBA, AXXA55L-AEZPBA, AXXH50L-AEXGBA, AXXH50L-AEXPBA, AXXH50L-AEXQBA, AXXH51L-AEXGBA, AXXH51L-AEXPBA, AXXH51L-AEXQBA, GSX50L-AEZGBA, GSX50L-AEZPBA, GSX50L-AEZQBA, GSX50L-AEZSBA
View related parts
Toyota Avalon Switch, Temperature Detect
Part Number: 89428-30130
Product Specifications
- Other Name: Fan Switch
- Warranty: This genuine part is guaranteed by Toyota's factory warranty.
Fits the following Vehicles:
- 1995-1999 Toyota Avalon | XL, XLS | 6 Cyl 3.0L | 1MZFE; MCX10L-AEPGKA, MCX10L-AEPGKK, MCX10L-AEPNKA, MCX10L-AEPNKK, MCX10L-AESGKA, MCX10L-AESGKK, MCX10L-AESNKA, MCX10L-AESNKK

Toyota Avalon Coolant Temperature Sensor

To be more detailed, the Toyota Avalon model contains the Coolant Temperature Sensor as one of the essential parts that examine the temperature of the coolant to manage the performance of the vehicle's engine. This particular sensor's salient function entails in identifying the temperature of the coolant in order to assess the productivity and usability of the engine. That is why, over the years, various types of Coolant Temperature Sensors can be installed in different models of Avalon, differing in specific features and operating mechanisms. Considering the function of this sensor, drivers will be able to keep their Avalon's engine in a good condition and prolong its service life.

If you are in demand for superior quality and affordable OEM Toyota Avalon Coolant Temperature Sensor, then shop with us! We own a wide range of the reduced-priced genuine Toyota Avalon Coolant Temperature Sensor. You can purchase in confidence as all parts come with a manufacturer's warranty. Any issues with our products? No need to worry as we have a hassle-free return policy to guide you every step of the way.

Toyota Avalon Coolant Temperature Sensor Parts Questions & Experts Answers

Sensor, Water Temperature
89422-35010
Q: What is the function and importance of the Coolant Temperature Sensor in the cooling system of a 2002-2006 Toyota Avalon?
A: The Engine Coolant Temperature (ECT) sensor is a thermistor that changes its resistance based on temperature variations, affecting the voltage signal sent to the PCM; as the sensor temperature decreases, resistance increases, and as the temperature increases, resistance decreases, with any issues in the ECT sensor circuits triggering a diagnostic trouble code. Begin by ensuring the ignition key is in the OFF position, then drain approximately one gallon of coolant from the cooling system. Next, disconnect the electrical connector and carefully unscrew the sensor. When installing the new sensor, wrap its threads with Teflon sealing tape to prevent leakage and corrosion, and remember that installation follows the reverse order of removal, taking care to handle the ECT sensor delicately, as damage to it can impact the entire fuel injection system.

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