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The BMW Range
3 Series
E30
Front Brake wear sensor
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<blockquote data-quote="astroboy" data-source="post: 478038" data-attributes="member: 4527"><p>The wire is just to provide a return ground signal to close/complete the pad wear indicator circuit. It's single wire connected to the dash where the +ve is already waiting at the indicator bulb. Puncturing of the pad wear sensor will complete the ground signal to light up the indicator bulb. Simple elementary 12v circuit.</p></blockquote><p></p>
[QUOTE="astroboy, post: 478038, member: 4527"] The wire is just to provide a return ground signal to close/complete the pad wear indicator circuit. It's single wire connected to the dash where the +ve is already waiting at the indicator bulb. Puncturing of the pad wear sensor will complete the ground signal to light up the indicator bulb. Simple elementary 12v circuit. [/QUOTE]
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The BMW Range
3 Series
E30
Front Brake wear sensor
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