What are the functions of the Anti-lock Brake System and how do you remove and install a wheel speed sensor on 2003 through 2009 Toyota 4Runner?

They include Anti-lock Brake System (ABS) and Vehicle Stability Control (VSC) which ensure that a car remains steerable, stable in its direction and experiences the best rate of deceleration when there is hard braking on different surfaces. ABS, on the other hand, regulates the brake line pressure and wheel rotation rate , to avoid wheel lock up during hard braking and VSC helps to correct over/under steer. The Traction Control System (TCS) complements these systems, so that its job is to limit wheel spin onto acceleration from slippery roads. An element of the master cylinder the modulator regulates hydraulic pressure to the brake calipers with an electric boost pump to provide pressure and solenoid valves for regulating brake line pressure during system operation. The system has a specific sensor for each wheel, that produces a signal proportional to the wheel's speed and an electronic processing module. Front sensors are installed in the steering knuckles, and the rear ones are fitted in the rear axle housing. The ABS/VSC/TCS computer receives data from the sensors to adjust hydraulic line pressure so that it does not lock a wheel or allow it to spin freely and also constantly searches for problems. In instances where a dashboard warning light stays on, the system needs service and initial diagnostics involve the integrity of brake fluid, wires, and fuses. If problems continue, then professional diagnosis as well as repairs are required, because those systems are complicated. For removal of wheel speed sensor, some of the steps include loosening of the lug nuts on the wheels with regard to the side where the speed sensor is fixed, lifting of the vehicle and after that disconnecting the electrical connector of the speed sensor, succeeding removal of the nut that holds the sensor to the vehicle chassis and a slow withdrawal of the speed sensor, with regard to fixing, the process involves the reverse of the above mentioned steps.

How to replace Vehicle Speed Sensor on 2002 through 2006 Toyota Avalon?

VSS is located on the transaxle above the sensor shaft and is an electronic part that provides a pulsing voltage signal with the shaft of the vehicle. Thus, the PCM observes these voltage pulses in order to help with controlling the fuel and ignition as well as managing the shifting of the transaxle. Tightly connect VSS To service the VSS, first, remove the electrical connector then remove the sensor retainer bolt, unbolt the transaxle and then replace the O-ring before installing the sensor though the process reversed a little.

Genuine Toyota Speed Sensor

Speed Control Sensor

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457 Speed Sensors found

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Toyota Sensor, Transmission Revolution
Part Number: 89413-08020
$130.21 MSRP: $185.11
You Save: $54.90 (30%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Speed Sensor, Vehicle Speed Sensor
- Replaces: 89413-33020, 89413-24010, 89411-33010
Fits the following Toyota Models:
- 4Runner | 1996-2005 | Limited, LULI, SR5, SR5B, SR5V | 4 Cyl 2.7L, 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L
- Avalon | 1995-2008 | Limited, XL, XLS | 6 Cyl 3.0L, 6 Cyl 3.5L
- Camry | 1993-2010 | CE, DX, LE, SE, XLE | 4 Cyl 2.2L, 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Celica | 2000-2005 | 4 Cyl 1.8L
- Corolla | 2009-2013, 2003-2004 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- Highlander | 2001-2013 | Grande, Limited, Medium, STD, Sport | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Matrix | 2009-2014, 2003-2004 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- RAV4 | 2001-2012 | Limited, STD, Sport, X | 4 Cyl 2.0L, 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L
- Sequoia | 2001-2005 | Limited, SR5 | 8 Cyl 4.7L
- Sienna | 2000-2010 | CE, LE, XLE | 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
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Toyota Sensor, Speedometer
Part Number: 83181-12020
$271.01 MSRP: $388.60
You Save: $117.59 (31%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 83181-12070
Fits the following Toyota Models:
- 4Runner | 1991-2001 | DLX, LULI, SR5, SR5B, SR5V, STD | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.4L
- Camry | 1992-1994 | DX, LE, SE, XLE | 4 Cyl 2.2L, 6 Cyl 3.0L
- Celica | 2000-2005, 1994-1998 | GT, ST | 4 Cyl 1.8L, 4 Cyl 2.2L
- Corolla | 1993-2008 | CE, DX, LE, S, STD, VE, XR, XRS | 4 Cyl 1.6L, 4 Cyl 1.8L
- Echo | 2000-2005 | 4 Cyl 1.5L
- FJ Cruiser | 2007-2011 | 6 Cyl 4.0L
- Land Cruiser | 1998-2007 | 8 Cyl 4.7L
- Matrix | 2003-2008 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L
- Pickup | 1991-1995 | DLX, SR5, STD | 4 Cyl 2.4L, 6 Cyl 3.0L
- RAV4 | 1996-2000 | 4 Cyl 2.0L
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Toyota Sensor, Transmission Revolution
Part Number: 89413-24010
$130.21 MSRP: $185.11
You Save: $54.90 (30%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Speed
- Replaced by: 89413-08020
Fits the following Toyota Models:
- 4Runner | 1996-2005 | Limited, LULI, SR5, SR5B, SR5V | 4 Cyl 2.7L, 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L
- Avalon | 1995-2004 | XL, XLS | 6 Cyl 3.0L
- Camry | 1993-2010 | CE, DX, LE, SE, XLE | 4 Cyl 2.2L, 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Celica | 2000-2005 | 4 Cyl 1.8L
- Corolla | 2009-2013, 2003-2004 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- Highlander | 2001-2013 | Grande, Limited, Medium, Sport, STD | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Matrix | 2009-2014, 2003-2004 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- RAV4 | 2001-2012 | Limited, Sport, STD, X | 4 Cyl 2.0L, 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L
- Sequoia | 2001-2005 | Limited, SR5 | 8 Cyl 4.7L
- Sienna | 2000-2003 | CE, LE | 6 Cyl 3.0L
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Toyota Sensor, Speed, Front LH
Part Number: 89543-60050
$219.34 MSRP: $314.52
You Save: $95.18 (31%)
Ships in 1-3 Business Days
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Product Specifications
- Position: Front Driver Side
- Replaced by: 89543-04020
Fits the following Toyota Models:
- 4Runner | 2003-2024 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 2008-2021 | 8 Cyl 5.7L
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Toyota Sensor, Speedometer
Part Number: 83181-12040
$298.07 MSRP: $427.42
You Save: $129.35 (31%)
Ships in 1-3 Business Days
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Fits the following Toyota Models:
- Avalon | 1995-1999 | XL, XLS | 6 Cyl 3.0L
- Camry | 1992-2005 | CE, DX, LE, SE, XLE | 4 Cyl 2.2L, 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L
- Celica | 1994-2005 | GT, ST | 4 Cyl 1.8L, 4 Cyl 2.2L
- Corolla | 1993-2002 | CE, DX, LE, S, STD, VE | 4 Cyl 1.6L, 4 Cyl 1.8L
- Echo | 2000-2005 | 4 Cyl 1.5L
- RAV4 | 2001-2005 | 4 Cyl 2.0L, 4 Cyl 2.4L
- Solara | 1999-2006 | SE, SLE | 4 Cyl 2.2L, 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L
- Yaris | 2006-2016 | RS, STD | 4 Cyl 1.5L
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Toyota Sensor, Transmission Revolution
Part Number: 89413-48010
$117.92 MSRP: $144.01
You Save: $26.09 (19%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Sensor, Speed; Speed Sensor, Vehicle Speed Sensor
- Replaces: 89413-33010, 89413-08010
Fits the following Toyota Models:
- Avalon | 2005-2008 | Limited, XL, XLS | 6 Cyl 3.5L
- Camry | 2003-2006 | LE, SE, XLE | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L
- Highlander | 2003-2013 | Grande, Limited, Medium, STD, Sport | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- RAV4 | 2006-2012 | Limited, Sport, STD, X | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L
- Sienna | 2004-2010 | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L
- Solara | 2004-2008 | SE, SLE | 4 Cyl 2.4L, 6 Cyl 3.3L
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Toyota Sensor, Speed, Front LH
Part Number: 89543-04020
$219.34 MSRP: $314.52
You Save: $95.18 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Front Driver Side
- Replaces: 89543-60050
Fits the following Toyota Models:
- 4Runner | 2003-2024 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 2008-2021 | 8 Cyl 5.7L
- Tacoma | 2005-2023 | Base, Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 3.5L, 6 Cyl 4.0L
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Toyota Sensor, Speed, Front RH
Part Number: 89542-04020
$219.34 MSRP: $314.52
You Save: $95.18 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Front Passenger Side
- Replaces: 89542-60050
Fits the following Toyota Models:
- 4Runner | 2003-2024 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 2008-2021 | 8 Cyl 5.7L
- Tacoma | 2005-2023 | Base, Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 3.5L, 6 Cyl 4.0L
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Toyota Sensor, Speed, Front LH
Part Number: 89543-0C020
$219.46 MSRP: $314.69
You Save: $95.23 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Position: Front Driver Side
Fits the following Toyota Models:
- Sequoia | 2008-2018 | Limited, Platinum, SR5 | 8 Cyl 4.6L, 8 Cyl 4.7L, 8 Cyl 5.7L
- Tundra | 2007-2018 | Limited, Platinum, SR5 | 6 Cyl 4.0L, 8 Cyl 4.6L, 8 Cyl 4.7L, 8 Cyl 5.7L
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Toyota Sensor, Speedometer
Part Number: 83181-20040
$340.68 MSRP: $488.51
You Save: $147.83 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Speedometer Sensor
Fits the following Toyota Models:
- Land Cruiser | 1992-1997 | 6 Cyl 4.0L, 6 Cyl 4.5L
- Previa | 1991-1994 | DX, LE | 4 Cyl 2.4L
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Toyota Sensor, Speed, Front RH
Part Number: 89542-0R010
$219.34 MSRP: $314.52
You Save: $95.18 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: ABS Sensor, Front Speed Sensor, Speed Sensor
- Position: Front Passenger Side
- Replaces: 89542-42050
Fits the following Toyota Models:
- RAV4 | 2006-2018 | LE, Limited, SE, STD, Sport, X, XLE | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.5L, Electric
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Toyota Sensor, Transmission Revolution
Part Number: 89413-32010
$105.24 MSRP: $148.35
You Save: $43.11 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Manufacturer Note: (J)
- Replaced by: 89413-0C011
Fits the following Toyota Models:
- 4Runner | 2003-2019 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- Camry | 1989-1991 | DX, LE, STD | 4 Cyl 2.0L, 6 Cyl 2.5L
- Celica | 2000-2005 | 4 Cyl 1.8L
- Corolla | 2009-2017, 2003-2007 | CE, ECO, ECOSW, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- Echo | 2000-2005 | 4 Cyl 1.5L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 1998-2007, 1992-1996 | 6 Cyl 4.0L, 6 Cyl 4.5L, 8 Cyl 4.7L
- Matrix | 2009-2014, 2003-2007 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- RAV4 | 1996-2004 | Conductive, Inductive | 4 Cyl 2.0L, Electric
- Sequoia | 2004-2007 | Limited, SR5 | 8 Cyl 4.7L
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View related parts
Toyota Sensor, Transmission Revolution
Part Number: 89413-08010
$117.92 MSRP: $144.01
You Save: $26.09 (19%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Replaced by: 89413-48010
Fits the following Toyota Models:
- Avalon | 2005-2008 | Limited, XL, XLS | 6 Cyl 3.5L
- Camry | 2003-2006 | LE, SE, XLE | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L
- Highlander | 2008-2011 | Grande, Limited, Sport, STD | 4 Cyl 2.7L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Sienna | 2004-2010 | CE, LE, XLE | 6 Cyl 3.3L, 6 Cyl 3.5L
- Solara | 2004-2008 | SE, SLE | 4 Cyl 2.4L, 6 Cyl 3.3L
View More
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Toyota Sensor, Speed, Front RH
Part Number: 89542-0C020
$229.78 MSRP: $329.49
You Save: $99.71 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Position: Front Passenger Side
Fits the following Toyota Models:
- Sequoia | 2008-2018 | Limited, Platinum, SR5 | 8 Cyl 4.6L, 8 Cyl 4.7L, 8 Cyl 5.7L
- Tundra | 2007-2018 | Limited, Platinum, SR5 | 6 Cyl 4.0L, 8 Cyl 4.6L, 8 Cyl 4.7L, 8 Cyl 5.7L
View related parts
Toyota Sensor, Transmission
Part Number: 89413-0C011
$105.24 MSRP: $148.35
You Save: $43.11 (30%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Vehicle Speed Sensor
- Manufacturer Note: (L)
- Replaces: 89413-0C010, 89413-32011, 89413-32010
Fits the following Toyota Models:
- 4Runner | 2003-2024 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- Camry | 1989-1991 | DX, LE, STD | 4 Cyl 2.0L, 6 Cyl 2.5L
- Celica | 2000-2005 | 4 Cyl 1.8L
- Corolla | 2009-2017, 2003-2007 | CE, ECO, ECOSW, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- Echo | 2000-2005 | 4 Cyl 1.5L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 1998-2007, 1992-1996 | 6 Cyl 4.0L, 6 Cyl 4.5L, 8 Cyl 4.7L
- Matrix | 2009-2014, 2003-2007 | CE, LE, S, STD, XR, XRS | 4 Cyl 1.8L, 4 Cyl 2.4L
- RAV4 | 1996-2004 | Conductive, Inductive | 4 Cyl 2.0L, Electric
- Sequoia | 2004-2013 | Limited, Platinum, SR5 | 8 Cyl 4.6L, 8 Cyl 4.7L, 8 Cyl 5.7L
View More
View related parts
Toyota Sensor, Speed, Front RH
Part Number: 89542-60050
$219.34 MSRP: $314.52
You Save: $95.18 (31%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Position: Front Passenger Side
- Replaced by: 89542-04020
Fits the following Toyota Models:
- 4Runner | 2003-2024 | Limited, SR5 | 4 Cyl 2.7L, 6 Cyl 4.0L, 8 Cyl 4.7L
- FJ Cruiser | 2007-2014 | 6 Cyl 4.0L
- Land Cruiser | 2008-2021 | 8 Cyl 5.7L
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Toyota Sensor, Skid Control
Part Number: 89544-48010
$181.88 MSRP: $224.01
You Save: $42.13 (19%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: ABS Rotor, ABS Sensor, Rear Speed Sensor, Sensor
- Replaces: 89544-48020, 89544-06020, 89544-06010
Fits the following Toyota Models:
- Avalon | 2005-2012 | Limited, XL, XLS | 6 Cyl 3.5L
- Camry | 2002-2010 | LE, SE, XLE | 4 Cyl 2.4L, 4 Cyl 2.5L, 6 Cyl 3.0L, 6 Cyl 3.3L, 6 Cyl 3.5L
- Highlander | 2001-2004 | 4 Cyl 2.4L, 6 Cyl 3.0L, 6 Cyl 3.3L
- Solara | 2004-2008 | SE, SLE | 4 Cyl 2.4L, 6 Cyl 3.3L
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Toyota Sensor, Speed
Part Number: 89411-50010
$78.10 MSRP: $94.57
You Save: $16.47 (18%)
Ships in 1-3 Business Days
ADD TO CART
Fits the following Toyota Models:
- 4Runner | 2010-2012, 1996-2005 | LULI, Limited, SR5, SR5B, SR5V | 4 Cyl 2.7L, 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L
- Land Cruiser | 1995-1997 | 6 Cyl 4.5L
- Sequoia | 2001-2005 | Limited, SR5 | 8 Cyl 4.7L
- Supra | 1993-1998 | 6 Cyl 3.0L
- Tacoma | 1995-2016 | Base, DLX, Limited, SR5 | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.4L, 6 Cyl 3.5L, 6 Cyl 4.0L
- Tundra | 2000-2005 | DLX, Limited, SR5 | 6 Cyl 3.4L, 6 Cyl 4.0L, 8 Cyl 4.7L
View More
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Toyota Sensor, Speed, Front RH
Part Number: 89542-35050
$270.50 MSRP: $387.88
You Save: $117.38 (31%)
Ships in 1 Business Day
ADD TO CART
Product Specifications
- Other Name: ABS Sensor Wire, Front Speed Sensor, Speed Sensor
- Position: Front Passenger Side
Fits the following Toyota Models:
- 4Runner | 1996-2002 | LULI, SR5B, SR5V | 4 Cyl 2.7L, 6 Cyl 3.4L
- Tacoma | 1996-2001 | DLX, SR5 | 4 Cyl 2.4L, 4 Cyl 2.7L, 6 Cyl 3.4L
View related parts
Toyota Sensor, Speed, Fr RH
Part Number: 89542-0R040
$219.46 MSRP: $314.69
You Save: $95.23 (31%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: ABS Sensor, Front Speed Sensor
- Position: Front Passenger Side
Fits the following Toyota Models:
- RAV4 | 2019-2024 | 4 Cyl 2.5L

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About Toyota Speed Sensor

Speed sensor, as its name shows, reads how fast you drive or how fast the wheel rotates. The speed sensor is helpful to maintain stability by means of telling the computer when you release pressure to a wheel when you are using ABS. Here are many ways to tell your speed sensor is wrong: if your odometer doesn't work; if your speedometer doesn’t work or works erratically; if the cruise control doesn't work correctly; if a loss of transmission shifts respond; if your Toyota idles in a wrong way; if your Toyota rumbles; if your Toyota suddenly loses power; if the fuel economy decreases; if the Check Engine Light (CEL) is on, there is a possibility that your speed sensor is failing. Welcome to our website to finish your easy shopping experience. All we offer you is Toyota genuine speed sensor with a surprisingly cheap price.

Toyota Speed Sensor Parts Questions & Experts Answers

Sensor, Transmission Revolution
89413-24010
Q: What are the functions of the Anti-lock Brake System and how do you remove and install a wheel speed sensor on 2003 through 2009 Toyota 4Runner?
A: They include Anti-lock Brake System (ABS) and Vehicle Stability Control (VSC) which ensure that a car remains steerable, stable in its direction and experiences the best rate of deceleration when there is hard braking on different surfaces. ABS, on the other hand, regulates the brake line pressure and wheel rotation rate , to avoid wheel lock up during hard braking and VSC helps to correct over/under steer. The Traction Control System (TCS) complements these systems, so that its job is to limit wheel spin onto acceleration from slippery roads. An element of the master cylinder the modulator regulates hydraulic pressure to the brake calipers with an electric boost pump to provide pressure and solenoid valves for regulating brake line pressure during system operation. The system has a specific sensor for each wheel, that produces a signal proportional to the wheel's speed and an electronic processing module. Front sensors are installed in the steering knuckles, and the rear ones are fitted in the rear axle housing. The ABS/VSC/TCS computer receives data from the sensors to adjust hydraulic line pressure so that it does not lock a wheel or allow it to spin freely and also constantly searches for problems. In instances where a dashboard warning light stays on, the system needs service and initial diagnostics involve the integrity of brake fluid, wires, and fuses. If problems continue, then professional diagnosis as well as repairs are required, because those systems are complicated. For removal of wheel speed sensor, some of the steps include loosening of the lug nuts on the wheels with regard to the side where the speed sensor is fixed, lifting of the vehicle and after that disconnecting the electrical connector of the speed sensor, succeeding removal of the nut that holds the sensor to the vehicle chassis and a slow withdrawal of the speed sensor, with regard to fixing, the process involves the reverse of the above mentioned steps.
Sensor, Transmission Revolution
89413-08020
Q: How to replace Vehicle Speed Sensor on 2002 through 2006 Toyota Avalon?
A: VSS is located on the transaxle above the sensor shaft and is an electronic part that provides a pulsing voltage signal with the shaft of the vehicle. Thus, the PCM observes these voltage pulses in order to help with controlling the fuel and ignition as well as managing the shifting of the transaxle. Tightly connect VSS To service the VSS, first, remove the electrical connector then remove the sensor retainer bolt, unbolt the transaxle and then replace the O-ring before installing the sensor though the process reversed a little.