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PLEASE HELP !!!! Audi A6 C7 2011 TDI location of Electronic Brake Module and airbag Module

  • 31-10-2021 10:29am
    #1
    Registered Users Posts: 613 ✭✭✭ v240gltse


    hi all

    its an AUDI A6 Saloon ( C7 type) and as the title says i'am having issues with these 2 modules and i think the airbag control module is under the center console but for the life of me i cant find out where the electronic brake module hides out ( a google search is not always a happy result )

    thanks in advance

    brendan



Comments



  • Did you try looking in the boot for it?





  • hi , had a look around and there are a few different modules in the boot so i need to be sure . I can find the location for earlier models but not the C7

    regards





  • airbag module location (1). Do not be fooled by DTC, this is guidance only. You need to make the real diagnostics. DTC reading is not the diagnostics


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  • hi

    thanks for that i'am using VCDS and got the following error report for the airbag fault, verified the seat ok by disconnecting it from teh floor socket and still a short to gnd:

    1 Fault Found:

    9440017 - Driver's side; side-airbag igniter 

         B100B 11 [137] - Short to Ground

         MIL ON - Confirmed - Tested Since Memory Clear

           Freeze Frame:

              Fault Status: 00000001

              Fault Priority: 2

              Fault Frequency: 1

              Mileage: 400248 km

              Date: 2021.10.29

              Time: 13:08:10


    for the Electronic braking i get the following report which from looking on the web is a faulty unit ( need to go looking for its location ) but the brakes still works ok :

    2 Faults Found:

    590336 - Control Module Left Channel Voltage Supply 

         C1012 29 [137] - Open or Short to GND

         MIL ON - Confirmed - Tested Since Memory Clear

           Freeze Frame:

              Fault Status: 00000001

              Fault Priority: 3

              Fault Frequency: 1

              Reset counter: 21

              Mileage: 400248 km

              Date: 2021.10.29

              Time: 13:08:46


              Voltage terminal 30: 11.8 V

              Internal Fault ID: 24

              Vehicle speed: 0 km/h

              Network management state: normal

              Function light in parking brake button: On

              Red operating lamp: On

              Red warning lamp: OFF

              Green operating lamp: OFF

              Yellow warning lamp: OFF

              Terminal 15 status: On

              RWU: not active

              DSD: not active

              HTR: not active

              ECD: not active

              ACC requested apply: not active

              Auto Adjust: not active

              General Inspection Function: not active

              Internal Parking Brake state: static

              Status of parking brake button: Not operated

              Status ParkingBrake left: applied

              Status ParkingBrake right: applied


    590592 - Control Module Right Channel Voltage Supply 

         C1013 29 [137] - Open or Short to GND

         MIL ON - Confirmed - Tested Since Memory Clear

           Freeze Frame:

              Fault Status: 00000001

              Fault Priority: 3

              Fault Frequency: 1

              Reset counter: 21

              Mileage: 400248 km

              Date: 2021.10.29

              Time: 13:08:16


              Voltage terminal 30: 11.8 V

              Internal Fault ID: 25

              Vehicle speed: 0 km/h

              Network management state: normal

              Function light in parking brake button: On

              Red operating lamp: On

              Red warning lamp: OFF

              Green operating lamp: OFF

              Yellow warning lamp: OFF

              Terminal 15 status: On

              RWU: not active

              DSD: not active

              HTR: not active

              ECD: not active

              ACC requested apply: not active

              Auto Adjust: not active

              General Inspection Function: not active

              Internal Parking Brake state: static

              Status of parking brake button: Not operated

              Status ParkingBrake left: applied

              Status ParkingBrake right: applied





  • First things first. I could start from battery to get the proper voltages. 11.8V is obviously too low. Cranking by 11.8V can lead to corrupted memory. I can not find the pinout or even the module location, only I found your more detailed story on audizine website.

    If you find that module

    Address 53: Parking Brake (----) Labels: 4H0-907-801.clb

    Part No SW: 4H0 907 801 E HW: 4H0 907 801 A

    Component: EPB-4 H03 0012


    Then try to figure out the powers and grounds. May be other day I have better luck on google, now late hour

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  • hi

    many thanks for the help and will keep you updated.

    regards

    brendan





  • I told to you, need only better day and I can find the bastard :P Number 6. There is 2 different mounting systems, retaining frame and nut(s). Removing is easy but if you have nut(s) then torque is only 3Nm. Such a small torque I like to use locktite and "torque" until everything is mounted flat, no movement.



    Post edited by Local Car Mechanic on

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  • hi

    thanks a million for that , It gave me the right place to start looking it. Its actually buried deep under so what you have to do is to ( sorry didn't have my camera with me at the time ). A 2nd hand unit cured that issue so now i'am just left with the Airbag light issue.

    1. remove the fuse panel ( will need to remove a10mm nut first )
    2. Slide out the parking sensor module from its cradle
    3. undo the remaining 3 10mm nuts holding the frame in place and set aside
    4. You can then see the Electronic Brake module attached to the floor.
    5. undo the 2 securing nuts and remove.
    6. replace the module ( no coding is required ) and reassemble everything.

    hope this helps someone else.

    regards

    brendan



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