Q: Speed sensor passive

asked by on

Doesn't change on automatic
My car has an automatic transmission.

Hello. If the speed sensor is passive, as in it is not responding then there is likely some sort of issue with the speed sensor or circuit. Common causes are issues with the speed sensor, circuit, or even the computer. It may be possible that the sensor has simply failed and needs to be replaced. Another possibility is an issue with the sensor’s electrical circuit. An issue with the wiring that goes to the sensor, or at the connector itself may be throwing, or cutting off the signal. If the sensor and circuit appear to be okay then it may be possible that the issue is with the computer, perhaps an internal fault. I would recommend testing the speed sensor and circuit to see if it is functioning correctly and going from there. If you need help getting this tested, a certified pro from YourMechanic can inspect the sensor and guide you through this repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Speed sensor passive

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: I was wondering how much it would be to replace vehicle speed sensor and serpentine belt. 2005 dodge stratus SXT 2.4L.

Your engine have more than one belt and the cause of the noise could be any one of them and also could be the tensioners for the belts not holding enough tension on the belts. The speedometer may be a...

Q: I drive an audi A4. Can I manually change the readings on my trip odometer? Please note, Im not asking about the primary odo...jus

Hi there. To my knowledge, you are able to clear the trip odometer anytime you want, but you can't calibrate the system to change to accomplish what I think you're looking for. You might be better served to purchase a...

Q: Suspension improvements, maybe problems.

Hi, thanks for writing in. If your vehicle is swaying side to side during turns, it is possible that your sway bar links or sway bar bushings are bad. I would recommend having those checked out by a qualified mechanic...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.