ABS sensor installation

2008 MERCEDES BENZ GL450
170,000 MILES • 4.7L • V8 • 4WD • AUTOMATIC
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KATHY CLARY-YANCEY
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I have replaces 3 speed sensors when I got to the front passenger side the connector plug as 2 wires one is speed sensor the other is brake pad wear sensor. problem is, I can’t find the wire harness that has both wires connected to the same plug. Am I missing something?
Jul 20, 2020 at 12:54 PM
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JACOBANDNICKOLAS
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Hi,

There isn't one plug for each. To the best of my knowledge, they are separate and the speed sensor connects at a small black box usually behind the strut assembly. I looked up the sensor wiring, and it shows it going to the control module.

Is that what you're asking?

Joe
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Jul 20, 2020 at 1:05 PM
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KATHY CLARY-YANCEY
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I took a photo, one wire coming out of the black plug is the speed sensor wire the other is the brake pad wear wire, but I can’t find anything on the internet that looks like this.
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Jul 20, 2020 at 1:18 PM
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JACOBANDNICKOLAS
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What is on the opposite side of that plug? Is it the sensor?

Joe
Jul 20, 2020 at 3:42 PM
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KATHY CLARY-YANCEY
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One wire end hooks to the speed sensor the other wire end hooks to the brake ad wear sensor.
Jul 21, 2020 at 12:22 PM
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JACOBANDNICKOLAS
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When you disconnected the original one, was it attached to the control arm assembly? Normally, they are attached and connected there. See the two pics I attached.

Joe
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Jul 21, 2020 at 9:52 PM