Skip the auto shop - Our mechanics make house calls

Q: Speedometer and Odometer not working, plus ABS and brake light is on

asked by on

A few days ago, I changed fixed the rear passenger brake light on my 2004 Jeep Grand Cherokee Laredo and the rear driver tail light. Once that was fixed, I went to change the bulb for my left turn signal, and then the front driver headlight went out. Then the engine light came on. It said I needed to replace a valve spring so I changed the whole coil and spark plugs. Then I changed the speed sensor and instrument cluster assembly, but the speedometer and odometer still isn't working. After those changes, the ABS and brake light came on. I went to NTB to get a reading for why those lights came on, but they were unable to get a reading from my computer. I'm not sure what is going on with my Jeep. Can you please help?

My car has 183583 miles.
My car has an automatic transmission.

Hi! That’s a lot of random electrical issues! The speedometer/odometer/ABS problem may all have a common thread, however. The wheel speed sensor circuit is involved in proper operation of all of them. I would check that sensor and its connectors and wiring. If you need assistance, a certified mobile mechanic from YourMechanic can come to your home or office to inspect the issue.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!
  • Home
  • Questions
  • Speedometer and Odometer not working, plus ABS and brake light is on

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: AC blowing hot air

It's likely that either there wasn't enough refrigerant or there is a problem going on with your air conditioner. For example, a failed pressure switch or compressor wiring can cause this issue. I would set an appointment with a certified...

Q: Popping sound coming from rear of vehicle at low speeds

The noise sounds like the rear brake drum is warped which will cause the brakes to grab and release, causing the noise. Have the rear brakes checked and resurface or replace the drums. If you have rear rotors and disc...

Q: Mileage is incorrect, Check Engine Light is on, and the car shakes - 2004 Mitsubishi Galant

Hello. The mileage may read this because it may have been switched from kilometers to miles. As for the shaking, if it occurs more at higher speeds, then it is more than likely due to the tires and not the...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...