E36 Coupe '95, Replaced front pad, buts warning light stayed on - Any Ideas??????/ - Page 2

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Thread: E36 Coupe '95, Replaced front pad, buts warning light stayed on - Any Ideas??????/

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    #11
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    E36Coupe328's Car Details
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    328 + 325
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    1995 + 1994
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    The sensor has two wires in, but the light comes on when the sensor touches the disk and earths through it.

    So really you only need one wire to detect the pad wear.

    What I think is that the two wires are a loop so that if it earths on the disk it puts the light on but if it detects a break in the loop it knows the sensor is broken or disconnected and puts the light on.
    Now I guess that when it wears down a bit it separates the wires by wearing away the contact that joins them. Hence putting new pads on when a sensor is too worn leaves the light on.

    I guess........ seems a logical way to do it.

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  3.  
    #12
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    kiwi328's Car Details
    Model of Car:
    e36 328
    Year of Manufacture:
    96
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    Manual
    Car Body Type:
    Coupe

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    Quote Originally Posted by E36Coupe328 View Post
    What I think is that the two wires are a loop so that if it earths on the disk it puts the light on but if it detects a break in the loop it knows the sensor is broken or disconnected and puts the light on.
    Now I guess that when it wears down a bit it separates the wires by wearing away the contact that joins them. Hence putting new pads on when a sensor is too worn leaves the light on.
    No warranty of any king implied or given and no liability accepted
    This is exactly how it works. Connection is broken and circuit is broken. Light comes on. Connect the two wires and the light goes off. No need to reset
     
     

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