No speedometer

2014 MAZDA 3

45,000 MILES • 2.0L • 4 CYL • 2WD • AUTOMATIC

JDUBEST23

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3 POSTS
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While driving my speedometer stopped working, power steering feels like it went out.......ABS, check engine, brake, flat tire, all lights that popped up on the dash. RPM gauge still works, it drives like normal minus power steering. I'm thinking maybe the speed sensor?

Aug 23, 2015 at 1:22 PM

CATAFINA

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167 POSTS

Could be the vehicle speed sensor, however scanned the computer for codes start here.

Aug 23, 2015 at 4:14 PM

HMAC300

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48,601 POSTS

check battery for condition including load test a battery in poor shape will cause that.

Aug 24, 2015 at 7:30 AM

JDUBEST23

MEMBER
3 POSTS

Im getting a u0121 code, no idea what it means. Hope you can help

Aug 24, 2015 at 2:47 PM

HMAC300

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48,601 POSTS

It means you have lost communication between either the steering module or abs/pcm can line a pro needs to definitely scan this to see where it is either a short or bad connection. this should be a warranty issue or if a recent body damage repair it may have painted over ground wire underhood.

Aug 24, 2015 at 3:06 PM

MARCOPOLO1166

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1 POST

I'm seeing this issue but only on days where temperature is extremely cold, 10-20°F. What should I do?

Dec 12, 2017 at 6:47 PM

STRAILER

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53,854 POSTS

Hello,

It sounds like you have an IGN1 relay that is going out which runs the systems that are affected and it will cause a communication error as well. Here is a guide and some diagrams to help you confirm the issue and get it fixed.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Check out the diagrams (Below)

Please let us know what you find. We are interested to see what it is.

Cheers, Ken

Images (Click to enlarge)

Dec 17, 2017 at 3:21 PM