Hi everyone,

I’m having a recurring issue with my 2013 Mazda CX-5 Touring and could use some help.

Problem:

Whenever I drive at 70 mph or above, the check engine light comes on. If I stop the car and later drive under 70 mph a few times, the light disappears. This is happening every day.

Code & Attempted Fixes:

• The code I’m getting is P0500 – Vehicle Speed Sensor malfunction.
  
• I’ve already checked and found out that this model doesn’t have a traditional transmission-mounted VSS. Instead, it uses the four ABS wheel speed sensors to calculate vehicle speed.
  
• I personally replaced all four ABS sensors with OEM parts, but the problem still remains.
  

Has anyone faced a similar issue or found a solution? Any help or insight would be much appreciated!

Thanks in advance,

 

Welcome to the forum

 

The DTC is a help to look at several possible causes. Replacing random parts often regarding DIY does not cure the problem and can cause additional problems form the original unresolved one. if you look there is some diagnostic work required to find your issue.
Forum like these can have guessing and the same list of possible faults creating the DTC and issue. My suggestion is you go read all the steps and procedure to test and find your problem.
If you strike out at random guessing, then find a shop that employees a Certified Diagnostic Technician. You may have to pay an hour labor fee, but you will know exactly what the fault is and then decide if you want to do the service to correct it.

 

Thank you very much for your suggestion. I have my vehicle checked by a mechanic who told me to replace the ABS wheel speed sensor and ignition coil no. 2, and all plugs.I appreciate it

 

Those are semi unrelated to a single DTC. "mechanics" are not really the best when it comes to diagnostic work. They tend to learn as they go.
Your response indicate exactly my point! Sorry
If one of my techs brought me a list of parts to replace based on your DTC info, I would tell him/her go back and re-evaluate your findings again and test the parts you claim are the cause of the DTC.

 

check the wiring and connectors for damage or corrosion, inspect the tone rings for dirt or damage, and verify the ABS module is working properly. Faulty wiring, damaged tone rings, or an ABS module issue are often the cause when all sensors are good. A dealer diagnostic scan might be needed to pinpoint the problem.

 

LOL I think after 40 + years as an ASE I know what to do so not sure why you are quoting me as if answering a question I have? However, it is good added information for the OP as long as they have experience working on ABS systems and the proper equipment otherwise it is formula for less than good results.
ASE