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brake pads workshop (warnings) dashboard


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hi can anyone throw any light on this one Brake pads workshop warning light just came on all brake pads changed and new sensors but light still on does the warning light used for more than 1 thing any help would be brilliant cheers Paul

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Welcome to RennTech :welcomeani:

 

The brake warning light has multiple functions; worn pads, low fluid, emergency brake engaged, etc.  As you just changed the pads, I'd start with the new sensors; one simply may not be plugged in all the way.

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If you have a "Brake Pads" light then you have an open sensor on one of your brakes. This can be due to brake pad wear or a broken wire.

In the Cayenne brake pads are a separate light (and circuit) from brake fluid and emergency brake lights.

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A simple way to check sensor at each wheel is to unplug the sensor and connect an ohmmeter to the sensor side pins. It should read shorted or nearly zero resistance.

If not the sensor is pad or the pads have worn through the sensor (as intended).

 

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35 minutes ago, pauli b said:

my first port of call was to check make sure all sensors ok  by checking continuity 

the old sensors i bared the wires joined together and plugged back in (this usually works) still problem there 

The two prong connector from the harness to the wear sensor just needs cleaning. A small amount of corrosion or dirt will increase the resistance enough to trip the computer. 

Wrap a small flat blade screw driver with emery paper and clean the pins up, spray male pins and female connector with electrical cleaner solvent and allow to dry, plug all back together and cycle ignition key, start engine,  check warning is not present anymore. Throw the wheels back on. 

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