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speed sensors

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How to Replace an ABS Speed Sensor
The Anti-Lock Braking System uses speed sensors to make sure your wheels are synced when braking. Most modern cars are equipped with this sensor.
Symptoms of a Bad or Failing Transmission Speed Sensor
Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming on.
How to Replace a Speed Timing Sensor
Some signs of a failed speed timing sensor include a Check Engine Light and poor performance. It's also known as the crankshaft position sensor.
How to Replace a Wheel Speed Sensor
A car wheel speed sensor helps control the anti-lock brake system by determining if a wheel is moving at a different speed than the other wheels.
How to Replace a Transmission Speed Sensor
Transmission speed sensors accurately calculate a car's road speed. If this sensor is faulty, a Check Engine Light will indicate the driver.

Related questions

Question
Power steering went out. Turn signals and speedometer won't work. As well as heating
Hello there, many faults will cause your power steering to go out and the P0500 and P0705 codes to be found on your 2010 Scion. Without knowing the model of your vehicle I can only offer general advice. If both...
Question
Won't shift out of 2nd gear.
Hi there. The speed sensor wiring could have a fault issue. Check the wiring to the speed sensor and see if there is a 5 volt reference. If there is no voltage, then there may be a break in the...
Question
2001 Chevy Silverado 1500 will not shift out of first gear. If you press on the gas pedal and then let off, the transmission would shift.
Hi there. The transmission is not shifting for the transmission speed sensor could have failed. This is the reason why when the throttle is let off and then the transmission shifts gear. The speed sensor is not communicating to the...
Question
Car won't speed up past 30 Mph.
Billing question sent to CS for the cost to replace the battery, replace the vehicle speed sensor (VSS), and clear the engine light.
Question
Check engine light.
YourMechanic does diagnose and repair speedometer malfunctions. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, simply request a speedometer diagnostic and the responding mechanic will get this resolved for...
Question
AT light on
One of the most common causes for this light to come on is the transmission input speed sensor goes bad and the transmission module connector. If you have the system scanned you would get codes pertaining to the input speed...
Question
Appearance of ABS, skiddig and tyre pressure signage 2009 Volkswagon
Hi there - there are couple of problems that can generate the warning lights you describe. If one or more tires has low air pressure, the vehicle can sense slightly different rotational speeds for each wheel - causing these warnings....
Question
Speedometer sensor - 2002 Dodge Durango
Hi - the speedometer sensor for your Durango is electronic, and there are instrument panel sensors and wiring adjacent to the steering column. Check to be sure all connectors are re-seated, to their proper mates as well. If you would...
Question
Abs and traction control light stays on
Hello. Thank you for writing in. When it comes to the readings you hace recieved, chances are the one odd sensor out is likely the culprit. It also depends on what setting your ohm meter is set to. You are...
Question
Trac off light and engine light came on at same time when I turned the engine on.
Hi there. The Trac Off light is for the traction control. The computer has turned off the traction control for a various reason. The controller could be malfunctioning, the vehicle speed sensor could be malfunctioning, or the wheel speed sensors...
Question
Getting the code P0500. Changed both NC & NT sensors. Can't pull out the vehicle speed sensor (VSS).
Hi there. The code P0500 is in reference with the vehicle speed sensor. The possible causes that contribute for this code to appear are: The vehicle speed sensor (VSS) is not reading properly There is a broken or frayed...
Question
Why does my car not have a spark from my ignition coil?
The most common cause of no start with no spark on this engine is the crankshaft sensor in the bell housing on the top drivers side. The sensor tells the computer when the engine is turning. and will trigger the...
Question
I have to fill my radiator and reserve tank almost every week.
Hi there. If the leaks to the cooling system are visible on the ground, then there is an external leak on the cooling system. Check all of the hose clamps to the radiator and water pump. Also, look to see...
Question
Speedometer and Odometer not working 2002 Mitsubishi Magna
Hello - the lack of speedometer and odometer function is most likely caused by a failure of the vehicle speed sensor (or the wiring to it). This sensor, and its wiring, would have to be tested with a voltmeter or...
Question
2008 Mazda 5 has codes P0661 and P0720
Input from the vehicle speed sensor (VSS) is used by the transmission control module (TCM) to calculate shift points, torque converter operation and other transmission functions. Code P0720 stands for Vehicle Speed Sensor circuit malfunction. Typically, this code indicates a...
Question
Gauges not working and car not shifting
Hello, and thank you for writing in. There are a few sensors that can effect both of these systems. The first one you should check is the transmission output speed sensor. You may also want to check the other speed...
Question
Speedometer/odometer quit working.
The speedometer is electronically controlled. Typically, there is a mini stepper (positioning) motor mounted on the instrument cluster PCB and it receives a signal from a speed sensor within the transmission. A wiring harness interconnects these components. The speed sensor...
Question
On my car, the transmission output speed sensor isn't responding at all. What do I need to do? I've scanned it with OBD scanner 2006 Hyundai Sonata
Hi there - excellent diagnostic work thus far! The next step is to determine if the output speed sensor is producing a signal at all, and if so, is it a valid signal, or is the wiring to the sensor...
Question
Over revving 2008 Ford
Hello - first task is to make sure the transmission fluid level is correct. Low fluid level or dirty fluid can cause shifting problems. A malfunctioning speed sensor in the transmission, or a failing throttle position sensor can cause the...
Question
Warning lights still on 2001 Pontiac Grand Am
Hi there - the next level of diagnostics are going to be required - specifically the ABS system. (Top level OBD II codes aren't enough here) I suspect you have a wheel speed sensor that is dirty or malfunctioning. These...

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