How to replace Vehicle Speed Sensor in manual and automatic transaxles on Mazda 6?

In the case of the manual transaxle, the Vehicle Speed Sensor (VSS) is located in the upper right corner of the transaxle and above the inner CV joint of the right drive axle. In order to remove it, jack up the vehicle and place it on jack stands and then dislodge the engine cover. Unscrew the VSS and electrical connector to VSS, dismount the mounting bolt, and pull out the VSS. Installation involves the use of a new O-ring that is discarded when old and installation is the reverse of removal. When it comes to the automatic transaxle, all other models (except the AW6A-EL and AY6A-EL or 6-speed) the speed sensors are part of the transaxle assembly and cannot be accessed by the home user. It has three speed sensors which include the Intermediate Shaft Speed (ISS) sensor, the Turbine Shaft Speed (TSS) sensor and the Output Shaft Speed (OSS) sensor. The sensors of the ISS and TSS are positioned on the top of the transaxle, and ISS as the rear, and TSS as the forward one. The OSS sensor appears close to the lower-left rear side of the transaxle. In case of replacement of the OSS sensor, raise the vehicle then place it on jackstands and remove the engine under cover. Unscrew the electrical connector of the sensor, unscrew the mounting bolt and detach the sensor. Replace the old O-ring with a new one at installation, the latter has the reverse sequence as removal.

What are the differences in Vehicle Speed Sensor configurations between the FN4A-EL and FS5A-EL transaxles, and how do you replace the Vehicle Speed Sensor (VSS) and other sensors on Mazda 3?

The FN4A-EL ( 4-speed ) transaxle has two speed sensors an Input Turbine Speed Sensor ( TSS ), mounted on top and a Vehicle Speed Sensor ( VSS ) mounted towards the lower right rear. On the contrary, the FS5A-EL (5-speed) transaxle has three speed sensors: the Intermediate Shaft Speed (ISS) sensor and the TSS at the top, and the VSS is also located at the bottom left rear. Replacement To remove and install the VSS, place the vehicle on jackstands, loosen the engine under-cover, unhook the electrical connector, and detach the mounting bolt to remove the VSS, and discard the old O-ring and use a new one during installation. In other sensors, disconnect the negative battery terminal, battery, battery tray, upper engine cover, electrical connector with the sensor, mounting bolt, and sensor and again discard the old O-ring and replace it with a new one. The single speed sensor is on the top of the manual transaxle.

Genuine Mazda Vehicle Speed Sensor

VSS

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17 Vehicle Speed Sensors found

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Mazda Vehicle Speed Sensor Part Number: FN12-21-551A
$139.05 MSRP: $185.44
You Save: $46.39 (26%)
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Product Specifications
- Other Name: Sensor, Speed; Speedometer Sensor
- Replaces: FN11-21-551, FN11-21-551-PT
Fits the following Mazda Models:
- 3 | 2004-2009 | Mazdaspeed, S, SP23, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
- 6 | 2008, 2003-2005 | S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
- Protege | 1999-2003 | DX, ES, LX, MP3, Mazdaspeed | 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Vehicle Speed Sensor Part Number: G570-17-400B
$226.39 MSRP: $301.91
You Save: $75.52 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven; Speedometer Sensor
Fits the following Mazda Models:
- 626 | 1993-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MX-6 | 1993-1997 | Base, LS, M Edition | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
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Mazda Vehicle Speed Sensor Part Number: FP01-21-550
$92.78 MSRP: $123.73
You Save: $30.95 (26%)
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Product Specifications
- Other Name: Generator, Pulse
Fits the following Mazda Models:
- 6 | 2003-2007 | Mazdaspeed, S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Vehicle Speed Sensor Part Number: FU2B-21-550
$96.00 MSRP: $128.03
You Save: $32.03 (26%)
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Product Specifications
- Other Name: Generator, Pulse
Fits the following Mazda Models:
- Millenia | 2002 | Base, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
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Mazda Vehicle Speed Sensor Part Number: FN01-21-550
$132.61 MSRP: $176.85
You Save: $44.24 (26%)
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Product Specifications
- Other Name: Generator, Pulse
Fits the following Mazda Models:
- 6 | 2008 | S, i | 4 Cyl 2.3 L GAS, 6 Cyl 3.0 L GAS
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Mazda Vehicle Speed Sensor Part Number: F530-17-400
$155.41 MSRP: $207.26
You Save: $51.85 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven; Speedometer Sensor
Fits the following Mazda Models:
- MX-3 | 1992-1995 | Base, GS, SE | 4 Cyl 1.6 L GAS, 6 Cyl 1.8 L GAS
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Mazda Speedometer Sensor Part Number: FW50-17-400C
$172.83 MSRP: $230.49
You Save: $57.66 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven
- Replaces: FW50-17-400B, FW50-17-400A
Fits the following Mazda Models:
- 626 | 1996-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS
- MX-6 | 1996-1997 | Base | 4 Cyl 2.0 L GAS
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Mazda Speedometer Sensor Part Number: G564-17-400A
$183.31 MSRP: $244.46
You Save: $61.15 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven-Speed
Fits the following Mazda Models:
- 3 | 2004-2009 | Mazdaspeed, S, SP23, i | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Mazda Vehicle Speed Sensor Part Number: G577-17-400
$192.95 MSRP: $257.32
You Save: $64.37 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven; Speedometer Sensor
- Replaces: G560-17-400
Fits the following Mazda Models:
- 626 | 1993-2002 | DX, ES, LX | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- MX-6 | 1993-1997 | Base, LS, M Edition | 4 Cyl 2.0 L GAS, 6 Cyl 2.5 L GAS
- Protege | 2001-2003 | DX, ES, LX, MP3, Mazdaspeed | 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
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Mazda Vehicle Speed Sensor Part Number: BV56-21-5H1
$216.20 MSRP: $288.32
You Save: $72.12 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Sensor, Turbine
Fits the following Mazda Models:
- 929 | 1995 | Base | 6 Cyl 3.0 L GAS
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Mazda Vehicle Speed Sensor Part Number: G567-17-400A
$216.94 MSRP: $289.31
You Save: $72.37 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven-Speed
Fits the following Mazda Models:
- Millenia | 1995-2001 | Base, L, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS
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Mazda Speedometer Sensor Part Number: F532-17-400A
$251.73 MSRP: $335.70
You Save: $83.97 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Gear Set, Driven-Speed
Fits the following Mazda Models:
- Protege | 1995-2001 | DX, ES, LX | 4 Cyl 1.5 L GAS, 4 Cyl 1.6 L GAS, 4 Cyl 1.8 L GAS
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Mazda Vehicle Speed Sensor Part Number: R505-17-400B
$259.51 MSRP: $346.09
You Save: $86.58 (26%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Gear Set, Driven-23 Teeth
Fits the following Mazda Models:
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Vehicle Speed Sensor Part Number: BV65-17-400
$279.08 MSRP: $372.17
You Save: $93.09 (26%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Gear Set, Driven
Fits the following Mazda Models:
- RX-7 | 1993-1995 | Base, R1, R2, Touring | 2 Cyl 1.3 L GAS
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Mazda Vehicle Speed Sensor Part Number: GJ5355475A
Product Specifications
- Other Name: Sensor, Speed Meter
Fits the following Mazda Models:
- 626 | 1990-1992 | DX, GT, LE, LX | 4 Cyl 2.2 L GAS
- MX-6 | 1990-1992 | DX, GT, GT 4WS, LE, LX | 4 Cyl 2.2 L GAS
View related parts
Mazda Speedometer Sensor Part Number: G565-17-400
Product Specifications
- Other Name: Gear Set, Driven-Speed
Fits the following Mazda Models:
- Protege | 2001-2003 | DX, ES, LX, MP3, Mazdaspeed | 4 Cyl 2.0 L GAS
- Protege5 | 2002-2003 | Base | 4 Cyl 2.0 L GAS
View related parts
Mazda Vehicle Speed Sensor Part Number: G563-17-400
Product Specifications
- Other Name: Gear Set, Driven; Speedometer Sensor
Fits the following Mazda Models:
- MX-3 | 1992-1995 | Base, GS, SE | 4 Cyl 1.6 L GAS, 6 Cyl 1.8 L GAS

Mazda Vehicle Speed Sensor

The Mazda Vehicle Speed Sensor supplies accurate real-time data on the car's road speed to the vehicle's onboard computer, allowing the transmission to shift smoothly and making you feel connected to the road during your travels. Mazda has earned a reputation for engaging handling and efficiency, with the SKYACTIV engines and KODO design giving each vehicle a stylish flow. Mazda wants to improve driver awareness through the use of i-ACTIVSENSE safety features while i-ACTIV all-wheel drive is equipped to add grip on constantly changing surfaces. Since it produced its first car in 1931, Mazda has pursued innovative engineering that reduces fuel consumption without compromising the fun to drive spirit. Mazda continues to enhance the daily driver for families and enthusiasts alike with lightweight construction and responsive steering while also introducing electric and mild hybrid variants. The Vehicle Speed Sensor aligns with the philosophy of smart simplicity. The Vehicle Speed Sensor is located on the transmission housing. It is a magnetic pickup that reads output shaft rotation. The sensor supplies an electrical pulse that rises in frequency with speed. This signal is responsible for the timing of gear changes, the regulation of line pressure, and the control of torque converter clutch engagement so that gear changes can be carried out with a minimum of jerkiness. It also feeds other control modules relying on correct velocity data to assist stability aids and driver displays. Its compact design and solid state make it resistant to wear, keeping maintenance worries down and sustaining the sharp, predictable driving feel that marks all Mazda products.

You'll get great performance and real durability when you pick genuine OEM Vehicle Speed Sensor. Mazda builds these using high-quality materials and official factory methods to ensure they hold up mile after mile. You deserve that Mazda reliability without the headache of cheap knockoffs. It is easy to find exactly what you need in our huge inventory of genuine parts. Plus, every OEM part carries a real manufacturer's warranty for your peace of mind. You will love our low prices too. Order today and we will ship your brand-new parts fast. They often reach your door in just a few days.

Mazda Vehicle Speed Sensor Parts and Q&A

Vehicle Speed Sensor
FN01-21-550
Q:
How to replace Vehicle Speed Sensor in manual and automatic transaxles on Mazda 6?
A:
In the case of the manual transaxle, the Vehicle Speed Sensor (VSS) is located in the upper right corner of the transaxle and above the inner CV joint of the right drive axle. In order to remove it, jack up the vehicle and place it on jack stands and then dislodge the engine cover. Unscrew the VSS and electrical connector to VSS, dismount the mounting bolt, and pull out the VSS. Installation involves the use of a new O-ring that is discarded when old and installation is the reverse of removal. When it comes to the automatic transaxle, all other models (except the AW6A-EL and AY6A-EL or 6-speed) the speed sensors are part of the transaxle assembly and cannot be accessed by the home user. It has three speed sensors which include the Intermediate Shaft Speed (ISS) sensor, the Turbine Shaft Speed (TSS) sensor and the Output Shaft Speed (OSS) sensor. The sensors of the ISS and TSS are positioned on the top of the transaxle, and ISS as the rear, and TSS as the forward one. The OSS sensor appears close to the lower-left rear side of the transaxle. In case of replacement of the OSS sensor, raise the vehicle then place it on jackstands and remove the engine under cover. Unscrew the electrical connector of the sensor, unscrew the mounting bolt and detach the sensor. Replace the old O-ring with a new one at installation, the latter has the reverse sequence as removal.
Vehicle Speed Sensor
FN12-21-551A
Q:
What are the differences in Vehicle Speed Sensor configurations between the FN4A-EL and FS5A-EL transaxles, and how do you replace the Vehicle Speed Sensor (VSS) and other sensors on Mazda 3?
A:
The FN4A-EL ( 4-speed ) transaxle has two speed sensors an Input Turbine Speed Sensor ( TSS ), mounted on top and a Vehicle Speed Sensor ( VSS ) mounted towards the lower right rear. On the contrary, the FS5A-EL (5-speed) transaxle has three speed sensors: the Intermediate Shaft Speed (ISS) sensor and the TSS at the top, and the VSS is also located at the bottom left rear. Replacement To remove and install the VSS, place the vehicle on jackstands, loosen the engine under-cover, unhook the electrical connector, and detach the mounting bolt to remove the VSS, and discard the old O-ring and use a new one during installation. In other sensors, disconnect the negative battery terminal, battery, battery tray, upper engine cover, electrical connector with the sensor, mounting bolt, and sensor and again discard the old O-ring and replace it with a new one. The single speed sensor is on the top of the manual transaxle.