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Discussion Starter #1
Hi, Connected to my car via PP2000 but the software cannot identify my abs/esp ecu (PP2000 unknown reference, ECU being referenced -no joy) The overall scan says I have a fault but I cannot get in to be more specific. Any solutions? Although under the engine ECU I see the following fault message: Permanent fault. Brake contact signal Coherence between the * brake switches. WTH does this mean? Any ideas anyone?

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The brake switch has two sets of contacts. One is for the brake lights and the other is for cruise control. These two are supposed to operate in a set sequence - cruise first then the brake light. I'm pretty sure this means that one of the switches - more than likely the cruise switch has failed.
 

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Discussion Starter #5
Could anyone please give me some advice? Where is the brake switch located? Is it easy to remove/replace? Any info will be much appreciated.

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