ABS & DSC lit after erratic startup

piloti3

Member
This was very strange. Started the car this morning and during the warmup period I watched the speedometer bounce between 0 and 80 mph several times in conjunction I heard what sounded like the "typical" DSC clunking noise. Nothing percular about engine idle during warm up and after it dropped off of high-idle I noticed I had both warning lights were on.

Car is garage kept and not been driven last 4 days. Over night temps in the teens to single digits outside. Inside garage usually 15 degrees warmer than outside temp.

Checked after work and both warning lights are still on. Suspect that both ABS and DSC are now non-functioning.

Any thoughts as to why this occured?

Thanks
 
Mazda reported that a couple of brake sensors (one in front, one in back) shorted out and that's what caused this to happen.
 

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