2017 EL ABS Speed Sensor Issue

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brisley

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Jun 27, 2024
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I have the ABS light.TC and Brake on. Looking with forscan I get the code for left rear speed sensor input error. Graphing the sensors I see that sensor has a very spiky profile compared to the others. Is this a symptoms of the sensor needing replacement or a problem elsewhere.
Also, in looking at what little video help I can find for the rear 2015-2017 it appears that it is not easy to get to the bolt holding in the actual sensor. It appears to be behind the shield and almost looks like you need to remove the axle to get to the sensor bolt and thread the wiring through. Is that the case?

2017 EL Wheel speed sensor.png
 
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