Front ABS Sensors on Volvo V70 2005

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Trademarkuk
Newbie
Posts: 1
Joined: Sat Dec 05, 2015 12:25 am

Front ABS Sensors on Volvo V70 2005

Post by Trademarkuk » Fri Dec 18, 2015 2:07 pm

Hi All,
Im a little confused why the front ABS signals appears so weak. My ABS lights up on the dashboard around 60mph. Please see the attached files. Any thoughts or guidance welcome. Regards Mark.
Attachments
FNS50RPM.psdata
wheels rotating at 50rpm
(1.04 MiB) Downloaded 125 times
FOS50RPM.psdata
wheels rotating at 50rpm
(731.49 KiB) Downloaded 89 times

volrem
TwoWaves
TwoWaves
Posts: 231
Joined: Fri Jan 03, 2014 3:43 pm
Location: Estonia

Re: Front ABS Sensors on Volvo V70 2005

Post by volrem » Sat Dec 19, 2015 8:42 am

Where do you measure and how is connection made? It seems that you measured ground wire.

Current signal is incorrect. This is MRE sensor and needs to have near battery voltage on one wire and 0V on other.

What does diagnosis tester shows (fault codes) and wheel speed live data? These tend to have broken ABS sensor wheels on driveshaft (can be replaced separately).


Attached good signal from 2005 S80
Attachments
2005 S80 Front wheel speed sensor.psdata
(1.3 MiB) Downloaded 106 times

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