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MMI fault - Sound System Fuse - CAN - Optical Errors
Hi
I was travelling along a few days ago when the radio switched off along with all MMI functions :( I reset but nothing. When you switch the ON/OFF button on the MMI screen switches on briefly then goes off. VCDS performed shows the system functions cannot be reached. Optical BUS diagnostics showed an electrical error on the 47-sound system along with 2 optical errors on the CAN gateway and the sound system. I checked all fuses and found the top most fuse (30AMP) dead in the left side boot/trunk where the NAV unit lives. Replaced and keep blowing so i assume this is the effect causing the MMI to stop. Any ideas on the cause of the blowing fuse? No apparent wetness around but I suppose, living in the UK, it has been damp for months over the winter.... Any tips on what to approach next? Thanks Sunday,07,April,2013,12:22:53:27992 VCDS Version: Release 11.11.5 Data version: 20121222 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Chassis Type: 4L0 Scan: 01 02 03 05 06 08 09 0E 15 16 17 18 19 28 34 36 38 42 46 47 4F 52 53 55 56 57 5F 61 62 6C 72 76 VIN: WAUZZZ4E89N011218 Mileage: 141640km/88011miles 00-Steering Angle Sensor -- Status: OK 0000 01-Engine -- Status: OK 0000 02-Auto Trans -- Status: OK 0000 03-ABS Brakes -- Status: OK 0000 05-Acc/Start Auth. -- Status: Malfunction 0010 06-Seat Mem. Pass -- Status: Malfunction 0010 08-Auto HVAC -- Status: OK 0000 09-Cent. Elect. -- Status: OK 0000 0E-Media Player 1 -- Status: Cannot be reached 1100 15-Airbags -- Status: OK 0000 16-Steering wheel -- Status: OK 0000 17-Instruments -- Status: OK 0000 18-Aux. Heat -- Status: Malfunction 0010 19-CAN Gateway -- Status: Malfunction 0010 28-HVAC, Rear -- Status: OK 0000 34-Level Control -- Status: OK 0000 36-Seat Mem. Drvr -- Status: OK 0000 38-Roof Electronics -- Status: OK 0000 42-Door Elect, Driver -- Status: OK 0000 46-Central Conv. -- Status: OK 0000 47-Sound System -- Status: Cannot be reached 1100 4F-Centr. Electr. II -- Status: OK 0000 52-Door Elect, Pass. -- Status: OK 0000 53-Parking Brake -- Status: OK 0000 55-Xenon Range -- Status: Malfunction 0010 56-Radio -- Status: Cannot be reached 1100 57-TV Tuner -- Status: Cannot be reached 1100 5F-Information Electr. -- Status: Cannot be reached 1100 61-Battery Regul. -- Status: Malfunction 0010 62-Door, Rear Left -- Status: OK 0000 6C-Back-up Cam. -- Status: OK 0000 72-Door, Rear Right -- Status: OK 0000 76-Park Assist -- Status: OK 0000 Control Module Part Number: 4L0 910 468 A Component and/or Version: J533__Gateway H06 0071 Optical Bus Diagnostic : Standard Controller Electrical Optical 19-CAN Gateway OK ERROR 0E-Media Player 1 OK OK 47-Sound System ERROR ERROR 56-Radio OK OK 57-TV Tuner OK OK ************************************************** ********** |
2 Attachment(s)
Hello,
That fuse looks to be for the Control Module for Digital Sound Package (J525) ... photo from PaulW post
Originally Posted by Tuizner
(Post 24429517)
I checked all fuses and found the top most fuse (30AMP) dead in the left side boot/trunk where the NAV unit lives. Replaced and keep blowing so i assume this is the effect causing the MMI to stop. |
1 Attachment(s)
888
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All this + TV + navigation + always fresh maps + texting + phone + games + camera + + + ... is in my phone and fits in my small pocket. This guys are in the stone age. Prices of their way outdated technology are outrageous and we are still happy about that. Something is weird here.
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1 Attachment(s)
Thanks
Yes it seems to be the BOSE unit Attachment 78816 > [IMG]http://i1180.photobucket.com/albums/...ps58fbe68b.jpg[/IMG] I took it out and then took it apart - nothing noticeably untoward: [IMG]http://i1180.photobucket.com/albums/...ps1ff3ad8f.jpg[/IMG] |
Measure resistance between Power and Ground to make sure there's no short. Check those electrolytic can capacitors.
If the fuse keeps blowing up, it's the power short on the device that causes the problem. Cheers, Louis |
Originally Posted by ltooz_a6_a8_q7
(Post 24429796)
Measure resistance between Power and Ground to make sure there's no short. Check those electrolytic can capacitors.
If the fuse keeps blowing up, it's the power short on the device that causes the problem. Cheers, Louis Thanks Louis Yes it looks to be a short. I get no resistance between the two large pins on the board (1 and 2). I cant see any issues on the board. Is there a workaround or is it new board time? [IMG]http://i1180.photobucket.com/albums/...ps0a038794.jpg[/IMG] [IMG]http://i1180.photobucket.com/albums/...ps598d0700.jpg[/IMG] |
So I got the board fixed by svt services in Edinburgh.
Figured out the problem - charged the battery whilst in the vehicle and it must have blown the transistors on the amp board That's the first and last time I charge a battery whilst connected in a car - dont know why Audi say to do that in the owners manual..grrrrr... Anyhoo - SVT have replaced the output modules and the polarity diode. Now I have it back but I think it needs coding on VCDS. The MMI works again but no sound - just loud static on some speakers. I think it needs recoding -anyone know the correct codes? Rosstech just says 00000013 I think but when I enter that it says incorrect..... I am thinking that maybe the repair wasnt quite right and this may have affected the outcome... Output below Address 47: Sound System Control Module Part Number: 4E0 035 223 N Component and/or Version: BOSE G3 D3 H01 0100 Software Coding: 0F000000 Work Shop Code: WSC 02399 VCID: 26434836518A55287B0 Advanced Identification Serial number: 00000000001598 Identification: BGE-001 Revision: AF001000 Date: 01.10.08 Manufacturer number: 0301 Test stand number: 5369 Flash Status Software MOST Net: 01.0A.0A TP 2.0: 02.04.05 Unknown: 02.02.02 Theft prot.: 02.02.00 Misc. Hardware number: 4E0 035 223 N Workshop System Name: J525 VCDS Info: Labels: REDIR FAIL! Tuesday,07,May,2013,14:11:06:27992 VCDS Version: Release 11.11.5 Data version: 20121222 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- Address 47: Sound System Control Module Part Number: 4E0 035 223 N Component and/or Version: BOSE G3 D3 H01 0100 Software Coding: 0F000000 Work Shop Code: WSC 02399 VCID: 26434836518A55287B0 Advanced Identification Serial number: ÿÿÿÿÿÿÿÿÿÿÿÿÿÿ Identification: ÿÿÿÿÿÿÿ Revision: AF001??? Date: ÿÿÿÿÿÿÿÿ Manufacturer number: ÿÿÿÿ Test stand number: ÿÿÿÿ Flash Status Software MOST Net: 01.0A.0A TP 2.0: 02.04.05 Unknown: 02.02.02 Theft prot.: 02.02.00 Misc. Hardware number: 4E0 035 223 N Workshop System Name: J525 VCDS Info: Labels: REDIR FAIL! |
If you look at the pins out, the connector only shows speakers connections - If this is the amplifier, then there must be inputs and outputs - inputs go in but don't get amplified - nothing out? Or the input circuits are fried - For the power to be dead - amplifier circuit(s) must be blown - More to do.
Cheers, Louis |
Originally Posted by ltooz_a6_a8_q7
(Post 24441752)
If you look at the pins out, the connector only shows speakers connections - If this is the amplifier, then there must be inputs and outputs - inputs go in but don't get amplified - nothing out? Or the input circuits are fried - For the power to be dead - amplifier circuit(s) must be blown - More to do.
Cheers, Louis I have got the exactly the same problem, did you replace the bose amp to resolve? Audi come back with a £1400 fix??? Bless them they cleaned the car to soften the blow though! Many thanks, Neil |
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