Q: Speedometer/odometer quit working.

asked by on February 12, 2017

My speedometer/odometer quit working on my 01' Kia sephia completely. It doesn't move at all, no matter what speed your going. This problem started either a couple days before or after something on the car caught fire, my husband thought it was the front/first O2 sensor, and we ended up putting out the fire with grape soda (didn't have any water at all) What could I try checking/cleaning/replacing on my car to get my speedometer working again?

My car has 200000 miles.
My car has a manual transmission.

Speedometer is not working Inspection $79.99 - $99.99 Get a Quote

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 can be tested using an automotive scope, the wiring (including any fuse in the circuit) can be tested and if no fault is found in those segments then the instrument cluster has to be removed to test the stepper motor. Your best bet is to test the wire harness, fuse, and sensor first as they are most accessible. If you want these steps performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a speedometer diagnostic and the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

The car has trouble starting after gas tank is filled up

Hi There, It sounds like you may have a problem with your evaporative emissions control system. Your car has a small purge valve called a purge solenoid in the Evaporative Emissions system that controls the venting of fumes from the...

VSA problem

Hi there. The VSA light is on indicating that the traction control is active. This will turn on the brake system and try to control the vehicle in the event a tire will slip. The wheel sensor on the left...

I have a VW, it overheated and shut down. It won't start now, but it does turn over

Hello. If your vehicle overheated, shut off, and will no longer start, then it may be possible that the overheating caused an issue. The fact that the engine still cranks is a good sign that the overheating did not seize...

A/C blows warm air

Hello. It sounds like you may have a weak compressor. The compressor is a pump for the A/C system and when it gets weak, it does not pump as well as it should. When this happens the air won’t be...

Squeaking belts

The power steering pump belt is not turning and can be the cause for the loss of steering. The water pump may be seized causing the overheating problem. I recommend having a mechanic, such as one from YourMechanic, check the...

How do I turn off the auto door lock?

The auto door lock feature automatically locks all of your doors, either when you shift out of P, or when you eclipse 10 mph. You can turn off this feature, in which case the doors will only lock when you...

Related articles

How Can the Light Bulb Wiring Become Damaged?
Your Your car is as much electrical as it is mechanical. Wiring harnesses snake their way around the engine bay, and throughout the cabin of the vehicle. Most of your accessories run on electricity, and even the engine needs a...
A Buyer’s Guide to the 2012 Kia Optima Hybrid
Kia Kia has really turned over a new leaf with their cars in the past few years, and the 2012 Kia Optima Hybrid is certainly no exception. With the same attractive design as the Optima, higher fuel efficiency, and a...
Is It Unsafe to Continue Driving a Vehicle with Broken Wheel Speed Sensors?
Car wheel speed sensors are an important safety feature. It helps the ABS system work when you need to make an emergency stop.