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2007 volvo s40 wheel speed sensor

Help, Advice, Owners' Discussion and DIY Tutorials devoted to the second generation C70, S40 and V50 Volvos -- awkwardly model year 2004 ½ onwards -- plus where to go for advice and discussion on Volvo's sporty C30 Coupe powered by Volvo's ubiquitous inline 5-cylinder power plant.
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Bph721
Posts: 7
Joined: Thu Jan 10, 2019 9:04 am
Year and Model: 2007 S40 2.4i
Location: South Carolina
United States of America

2007 volvo s40 wheel speed sensor

Post by Bph721 » Thu Jan 10, 2019 3:23 pm

I am trying to verify that my wheel speed sensors are operating. Most of the videos that i have seen suggest checking with a multimeter. I am checking directly on the sensor and they are all reading open. The meter and leads are good and i have the leads oriented correctly. Are these sensors supposed to read resistance across the two contacts? Any help is appreciated!!

jtopiso
Posts: 18
Joined: Wed Aug 29, 2018 7:01 am
Year and Model: 2009 C30 2.0i
Location: Spain
Spain

Re: 2007 volvo s40 wheel speed sensor

Post by jtopiso » Fri Jan 11, 2019 8:41 am

are you taking the read while spinning the wheel?

Bph721
Posts: 7
Joined: Thu Jan 10, 2019 9:04 am
Year and Model: 2007 S40 2.4i
Location: South Carolina
United States of America

Re: 2007 volvo s40 wheel speed sensor

Post by Bph721 » Fri Jan 11, 2019 8:49 am

I tried both while spinning the wheel and while stationary. Most videos and forums say that these type of sensors should have a resistance value of abetween 8000 and 1500 Ohms. All I ever see is infinite resistance.

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