Hello everyone, first time here. I tried searching around a little bit and found some information but not exactly what I was looking for.

Basically, my girl friend has a 2010 Mazda 3 with a manual shift 6 speed and isn't the best with maintenance on her car. For a long time the ABS light and traction control light have been on and she's just ignored them.

The other day the engine started missing some and losing some power, and then the power steering light came on and now no powersteering. The next day the odometer and speedometer quit working and the radio volume changes on it's own.

I've seen people mention all these symptoms before but it wasn't clear to me what the fix was. After a little reading it sounds like the manual 6 speed doesn't have a VSS and the speedo gets information from the ABS sensors, is that right? My plan is to replace them today, is there only two on the car, two in the front? Can these sensor failing cause all these issues?

Thanks.

 

Well I replaced all the ABS sensors last night and no change. I disconnected power to see if I could reset the computer and still nothing. I cleaned all the grounds under the hood and battery posts and nothing.

The codes its getting are P0128, P0500, and P061B. P0500 is Vehicle Speed Sensor A. So not sure why replacing them all didn't affect that one, defintley seems to be some other electrical issue.

 

Speed sensor is usually on the transmission.

 

It's a manual shift and from what I've read the speed is measured at the ABS sensors. They don't seem to sell a dedicated speed sensor for a manual transmission.