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Discussion Starter #1
I have a Audi Q3 2015 and I have a park brake issue, I require a new module, the question is where is the parking brake module located in a 2015 Q3 I thought it may be located under the centre consol but can't find this misterious module, can anyone help please
 

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Hey there and welcome to the forum - hope this info helps you out enough to come back and contribute some too - You're pretty warm in thinking that it's located under the central console, cuz that's where it is. It's known as the J540 - Electromechanical Parking Brake Control Module, and is on the passenger side about even with the back of the shifter next to another module (J587 - Selector Lever Sensor System Control Module). See guide below :

 

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Discussion Starter #3
Hi thanks for you reply, the only problem it definatly not there, I have the inside of the car removed and still can't find this module, we are beginning to think because the car is so new (2015 build) that it could be integral with the ABS module? we can see no other module that has any connection with brakes?
 

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Where are you? Is this a car built for the NAR or the RoW? That MAY make a difference...
 

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UK. Not an import UK build code so I'm told. The car was caught it flood water, the water was into the car but not that high (foot well depth only) we had to change some modules that were contaminated and all is working OK now with the exception of the electric handbrake system, as soon as the wires are connected to the brake callipers the handbrake fires on, then you have to wind them back and remove the wires from the callipers. We have a auto electrician that has all the latest Audi diagnostic equipment and on that it was telling him that the park brake module was U/S and showed the same graphic that you supplied, however I can assure it's not there or anywhere else for that matter. So the only other module that is connected with brakes is the ABS unit itself? however this part of the car was never under water, we have had the ABS unit off and a look at it and looks as good as new. Baffling us a bit




Alan
 

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I'm pretty sure that there is/was no integration of the J540 into the J104 ABS/ESP Control Module. I'd look a little further backwards on the central console too - check this illustration below for reference and the other modules necessary fro this to work. btw, I known of no reason why your J540 should be AWOL unless it was taken out by someone else or some other bizarre issue. Not sure I can help much more - let us know how it goes -

 

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Could someone have already removed the module thinkning that the car could move? I wonder if that may have happened because of the flooding and contamination of the J540 in the first place and then they just left the wiring off the brakes too... Just trying to think how it could end up like this -
 

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We have looked at this for long enough now and whats mistifying is if that were the case that someone had removed the module there would be spare plugs looking for a home where the module is supposed to be, but alas no spare plugs anywhere, we have also followed the wires from the handbrake switch thinking this may lead us to the module, but the wiring just goes into the main harness.
Alan.
 

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Then I am at a loss with you too - I suppose your next route is to solicit help form an Audi shop - perhaps get a tech to come by on the side for a pint or two ... wish I could've been more help for y'all -
 

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Hi All


Eventually got to the bottom of this issue, the module J540 is no longer used on this model, the park lock system is now intergrated with the ABS module, we then sent this off for repair, however they could not repair so a new module at vast amount of money was purchsed installed and coded, now that all works ok.
My next issue with the car is the transmission, I will try and explain what happens, when de-accelrating for a road juction transmission is in D3 accelerate once into the junction and the transmission will lose drive for a few seconds then take up the drive suddenly with a bang, this does not happen every time, but if it does it will be in D3 only whatever mode you select, also there is no fault codes with the transmission and the correct adaption set are there
 

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I'm glad you solved the one problem - on that I want to know if the NAR cars are the same and will sniff it out - meanwhile on your gearbox issue, I can't help much as we (NAR) all have tiptronics - torque converter automatics - and not the DSG you have.

But it sounds like a loose clutch pack (at least one side) to me ... although my record of recommendations is not so good for you so far. :|
 
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