Where is speedometer sensor

As a safety measure, automotive manufacturers engineer the cruise control in a way that if the speedometer sensor is acting up, it won't engage the cruise control at all. On most cars sold today, this will be indicated by the cruise control light being illuminated on the dashboard - even if it's not engaged. If you experience this problem, it's possible that the speedometer sensor needs to be replaced. The speedometer sensor is located inside the transmission and attached to a driveshaft, which impacts multiple functions of the car.

Due to this fact, it's possible that the Check Engine Light will light up on the dashboard if a sensor problem is discovered by the vehicle's CPU. Regardless of why the check engine light is illuminated, it's never a good thing, nor should it be avoided. If the check engine light shows up anytime, contact a mechanic as soon as possible so they can diagnose the problem with the correct diagnostic tools.

Sometimes the issue is small and the CPU needs to be reset; but don't take that risk. Today's cars and trucks have electronic fuel injection, which is controlled by the onboard computer. The EFI supplies fuel to the engine based on input from multiple sensors; one of which is the speedometer sensor. If you notice that your car starts to lose power ; especially when you apply pressure to the throttle, this might be caused by a damaged or malfunctioning speedometer sensor.

This problem could be potentially harmful to other mechanical components on your vehicle, so don't ignore the issue. Contact a certified mechanic as soon as possible to determine what is causing this issue. As you can see, the speedometer sensor impacts the operation of multiple components that allows you to efficiently operate your car or truck. Anytime you experience any of the above warning signs, contact a professional mechanic to properly diagnose and repair the issue.

This article originally appeared on YourMechanic. Autoblog is partnering with YourMechanic to bring many of the repair and maintenance services you need right to you. Get service at your home or office 7 days a week with fair and transparent pricing. We get it. Ads can be annoying. But ads are also how we keep the garage doors open and the lights on here at Autoblog - and keep our stories free for you and for everyone.

And free is good, right? Control Units. Holistic Connectivity. Smart Device Integration. Road Condition. Multimedia Systems. Active Safety. Access Control Systems. Low Speed Maneuvering. Flat was yesterday. Connected Head Unit. Passive Safety. Seat Comfort Systems. Testing Portfolio. Passive and Integrated Safety. Integrated Safety. Systems Competence. Advanced Antenna Solutions. Power Closures. Rotate the wheels by hand to get impulses. On the oscilloscope screen you must observe the following signal fig.

Attach the oscilloscope probe to the signal terminal and measure the voltage. Its value should be from 8. Also check the voltage of the power supply terminal. Its value should be lower than the nominal of the car battery. If everything is normal, probably the fault is in the VSS sensor or the speed cable does not rotate because it is broken or the gearbox is damaged. Lack of signal voltage Check the voltage at the onboard computer connector terminals: If voltage of the onboard computer is normal, check the signal circuit conductivity and the diode in the circuit between the onboard computer and the VSS sensor.

If voltage of the onboard computer is missing, check all power supply voltages and all connections to GND of the onboard computer.