Audi side assist canbus connection

   #61  

RussJ

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As suggested by Ewe, this is a spreadsheet showing all the interconnects:

https://docs.google.com/spreadsheets/d/1KC5IqYgvT6ixcaSGtT1UjHauOEXbwG04sax0uVEiw7E/edit?usp=sharing

I checked continuity from the module connectors to each wires final connection, so I'm reasonably confident that the wiring is OK.

The warning lamps are showing 12v on the permanent live but also approx. 10v on the return wire to the modules. This is what puzzles me, does the voltage leak through the LEDs?
Ooops sorry, should be Uwe

Russ
 
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   #62  

RussJ

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Had to take a break from fiddling with the car as family came to stay.
Today my new (to me) modules arrived from Germany so tomorrow, weather permitting, I'll remove the rear bumper (again!),do a final wiring check and then install the new units.
Fingers crossed!
Russ
 
   #63  

RussJ

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Removed bumper, double checked wiring and all seems OK.
Replaced old modules with new.

Good news - the warning light error has gone. Suggests to me that one or other of the modules were faulty.

Bad news - I've got another fault code!

The 3C reports:
U1121 00 (009) Missing message.

Any ideas?
Russ
 
   #64  

myounus

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Removed bumper, double checked wiring and all seems OK.
Replaced old modules with new.

Good news - the warning light error has gone. Suggests to me that one or other of the modules were faulty.

Bad news - I've got another fault code!

The 3C reports:
U1121 00 (009) Missing message.

Any ideas?
Russ
Can you post a scan please. If you've got a v2 cable then it'll be easier to work out what it means.
 
   #65  

downtime

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Missing message, not fatal. The system should work without it.

Might indicate that the gateway has too low sw index.
 
   #66  

RussJ

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Just re-ran a full scan.
"Missing message" error has gone but the original "warning lights" errors are back!
I'm really stuck now, can't now tell if the new modules are faulty or its a wiring issue.
If its wiring then I can't work out what might be wrong - there are only two wires in the circuit for each warning light.
One carries permanent 12v and the second connects the other side of the light back to a terminal on the module.
I've checked continuity from the module to the light and for any cross links to another wire in the loom but have not found anything suspicious.
The voltage on the return wires to the module is 9v for both lights and this voltage is present at the light itself even when the return wire is disconnected, so it must leak through the warning light.
I'm left with the conclusion that, improbable as it might sound, the new modules have the same issue as my old ones.
There must be an internal short or open circuit within the module.
 
   #67  

iichel

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Can you post a scan please. If you've got a v2 cable then it'll be easier to work out what it means.
like suggested earlier, any question is much easier to answer with a fresh autoscan :thumbs:
 
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   #68  

RussJ

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Code:
[CODE]Raining last night so have scanned this morning. 
Please ignore hatch faults - lots of connectors undone.

I'm gong to try and by-pass the loom and connect a warning light directly to the module. This should show if there is a loom issue (damaged wire/ short etc).


[CODE]Friday,07,September,2018,10:31:39:63302
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 18.2.1.5 (x64)
Data version: 20180518 DS287.2
[url]www.Ross-Tech.com[/url]


VIN: WAUZZZ8R8FA079650   License Plate: CJ55RDJ
Mileage: 34470km-21418mi   Repair Order: New modules 2



--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Chassis Type: 8R-AU48 (8R0)
Scan: 01 02 03 05 08 09 13 15 16 17 19 20 36 3C 42 44 46 47 52 53
          56 5C 5F 62 6C 6D 72 A9 C0

VIN: WAUZZZ8R8FA079650   Mileage: 34470km-21418miles

01-Engine -- Status: OK 0000
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: OK 0000
09-Cent. Elect. -- Status: OK 0000
13-Auto Dist. Reg -- Status: OK 0000
15-Airbags -- Status: OK 0000
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: OK 0000
20-High Beam Assist. -- Status: OK 0000
36-Seat Mem. Drvr -- Status: OK 0000
3C-Lane Change -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: OK 0000
46-Central Conv. -- Status: Malfunction 0010
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
5C-Lane Maintain. -- Status: OK 0000
5F-Information Electr. -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
6C-Back-up Cam. -- Status: OK 0000
6D-Trunk Elect. -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
A9-Struct. Borne Sound -- Status: OK 0000
C0-Act. for Ext. Noise -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CGQB)       Labels:. 059-907-401-V2.clb
   Part No SW: 8K5 907 589     HW: 4G0 907 589 
   Component: 3.0BTD EDC17  H25 0004  
   Revision: 57H25---    
   Coding: 2A2A4032256603020000
   Shop #: WSC 06208 000 00000
   ASAM Dataset: EV_ECM30BTD0118K5907589 001007
   ROD: EV_ECM30BTD0118K5907589.rod
   VCID: 7EF275E8E10033B456-802A

No fault code found.
Readiness: 0 0 0 0 1 

-------------------------------------------------------------------------------
Address 02: Auto Trans (J217)       Labels:| 0BK-927-156.clb
   Part No SW: 8R0 927 158 AE    HW: 0BK 927 156 AM
   Component: 0BK 30RTDIRdW H19 1007  
   Revision: --H19---    
   Coding: 000001
   Shop #: WSC 00000 000 00000
   ASAM Dataset: EV_TCMAL551211 002022
   ROD: EV_TCMAL551211_002_AU48.rod
   VCID: 000E0B109BF4454424-8054

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8R0-907-379-V2.clb
   Part No SW: 8R0 907 379 AP    HW: 8R0 907 379 AP
   Component: ESP8 quattro  H09 0020  
   Revision: --------    Serial number: --------------
   Coding: 245DCC01
   Shop #: WSC 06335 000 00000
   VCID: 0E122528D9A02334A6-805A

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 KH    HW: 8K0 907 064 KH
   Component: BCM2 2.0      H15 0711  
   Revision: 00002001    
   Coding: 05B54040000000000000
   Shop #: WSC 06335 000 00000
   VCID: 000E0B1093F4454424-8054

   Subsystem 1 - Part No SW: 8K0 905 852 E    HW: 8K0 905 852 E
   Component: J764 ELV MLB  H40 0046 
   Serial number: 3214000163027010    

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels: Redir Fail!
   Part No SW: 8K2 820 043 AQ    HW: 8K2 820 043 AQ
   Component: KLIMA 3 ZONEN H04 0123  
   Revision: D1000000    Serial number: 01211120141279
   Coding: 3625028000
   Shop #: WSC 06335 000 00000
   VCID: 78FE63F0CB240D841C-802C

No fault code found.

-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 DH    HW: 8K0 907 063 DH
   Component: BCM1 1.0      H16 0103  
   Revision: 08016001    Serial number: 00000951648401
   Coding: 260000108074AFE00581404300001D0D0F9D470827090201000008004400030100000034000000
   Shop #: WSC 50664 002 104857
   VCID: 78FE63F0CB240D841C-802C

   Subsystem 1 - Part No SW: 8R2 955 119 A    HW: 8R2 955 119   Labels: 1KX-955-119.CLB
   Component: WWS416 140825  H12 0050 
   Serial number: 90243015140820021300
   Coding: 01DD13

   Subsystem 2 - Part No SW: 8U0 955 559 B    HW: 8U0 955 559 B  Labels: 8U0-955-559.CLB
   Component: G397_RLFS  H06 0002 
   Serial number: 23488562            
   Coding: 02005C

   Subsystem 3 - Part No SW: 8K0 941 531 AS    HW: 8K0 941 531 AS
   Component: E1 - LDS  H03 0031 
   Serial number: 00000000001511146557

   Subsystem 4 - Part No SW: 4H0 907 658     HW: 4H0 907 658 
   Component: AQ_Hum_Sensor  H03 0003 
   Serial number: 37488D57000000000001

No fault code found.

-------------------------------------------------------------------------------
Address 13: Auto Dist. Reg (J428)       Labels: Redir Fail!
   Part No SW: 8R0 907 561 A    HW: 8R0 907 561 A
   Component: ACC3          H11 0100  
   Serial number: 00000000000000
   Coding: 007D8A
   Shop #: WSC 06335 000 00000
   VCID: 377CA0CC86BAC2FCD5-8062

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:| 8R0-959-655.clb
   Part No SW: 8R0 959 655 G    HW: 8R0 959 655 G
   Component: AirbagVW-AU10 H48 0610  
   Serial number: 003JPDC21U3M  
   Coding: 30473431313030303030554A305238523053
   Shop #: WSC 06335 000 00000
   ASAM Dataset: EV_AirbaAU10SMEAU416 002004
   ROD: EV_AirbaAU10SMEAU416.rod
   VCID: 489ED330F344BD04AC-801C

   Crash sensor for side airbag: driver side: 
   Serial number: 6334MSME4A6B2B05M

   Crash sensor for side airbag: front passenger side: 
   Serial number: 6344MSME4A596417K

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 6352QSME5C484164L

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 6362QSME5C4B216CV

   Crash sensor for front airbag: driver side: 
   Serial number: 63732SME3449245C%

   Crash sensor for front airbag: front passenger side: 
   Serial number: 63832SME714B487A9

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 M    HW: 8K0 953 568 M
   Component: Lenks.Modul   H04 0005  
   Revision: --------    Serial number: 90372NKI000FS 
   Coding: 0000FF
   Shop #: WSC 06335 000 00000
   VCID: 4486C700C76C996440-8010

   Component: E221 - MFL  H03 0004 

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8R0-920-xxx-17.clb
   Part No SW: 8R0 920 951     HW: 8R0 920 951 
   Component: KOMBIINSTR.   H35 0567  
   Revision: 00100000    Serial number: 03I32JJCF     
   Coding: 33E7220047012600010000
   Shop #: WSC 06335 000 00000
   VCID: 74E657C0D74C69E430-8020

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8R0 907 468 P    HW: 8R0 907 468 D
   Component: GW-BEM 5CAN-M H11 0060  
   Revision: 1Z120030    Serial number: 3041Z14B190417
   Coding: 80CD07FF00
   Shop #: WSC 06335 000 00000
   VCID: 4C96EF20EF3C512488-8018

   Subsystem 1 - Part No SW: 8R0 915 181 C    HW: 8R0 915 181 C
   Component: J367-BDMHella  H07 8043 
   Serial number: 4899974903          

   Subsystem 2 - Part No SW: 8K0 959 663 B    HW: 8K0 959 663 B
   Component: J532_DCDCStab  H05 0006 
   Serial number: 14311000484011200410

No fault code found.

-------------------------------------------------------------------------------
Address 20: High Beam Assist. (J844)       Labels:. 8K0-857-511.clb
   Part No SW: 8T0 857 511 AD    HW: 8T0 857 511 AD
   Component: FLA           H04 0012  
   Revision: AA001002    
   Coding: 02022064747464545425363E00
   Shop #: WSC 06335 000 00000
   VCID: 7CF67FE0FF1C21A478-8028

No fault code found.

-------------------------------------------------------------------------------
Address 36: Seat Mem. Drvr (J136)       Labels: None
   Part No SW: 8R0 959 760 D    HW: 8R0 959 760 B
   Component: MEM-FS        H07 0077  
   Revision: AA000000    Serial number: 00000124832453
   Coding: 01781B00000000000000
   Shop #: WSC 06335 000 00000
   VCID: 428AC118DD78975472-8016

No fault code found.

-------------------------------------------------------------------------------
Address 3C: Lane Change (J769)       Labels:| 5Q0-907-566.clb
   Part No SW: 8T0 907 566 B    HW: 8T0 907 566 B
   Component: SWA Master    H05 0071  
   Serial number: 0330262003
   Coding: 010312
   Shop #: WSC 06334 123 12345
   ASAM Dataset: EV_LaneChangAssis 001020
   ROD: EV_LaneChangAssis_AU21.rod
   VCID: 3F8CC8ECA68AFABC1D-806A

   Lane Change Assistant 2: 
   Subsystem 1 - Part No SW: 8T0 907 568 B    HW: 8T0 907 568 B
   Component: SWA Slave  H05 0071 
   Serial number: 0330949180          
   Coding: 010312

2 Faults Found:
730378 - Warning Lamp for Lane Change Assistance in Driver-Side Ext. Mirror 
          C1116 15 [009] - Open or Short to Plus
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Date: 2018.08.24
                    Time: 18:14:45

730634 - Warning Lamp for Lane Change Assistance in Passenger-Side Ext. Mirror 
          C1117 15 [009] - Open or Short to Plus
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Date: 2018.08.24
                    Time: 18:14:45


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8K0 959 793 R    HW: 8K0 959 793 P
   Component: TSG FA        H02 0510  
   Revision:             Serial number: 0000126845640 
   Coding: 011D12215E01440004
   Shop #: WSC 06335 000 00000
   VCID: 4FACF82C1E2A6A3CED-801A

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist (J500)       Labels:| 8K0-909-144.clb
   Part No SW: 8R0 909 144 J    HW: 8R0 909 144 B
   Component: RCEPS         H41 0509  
   Revision: 00001000    Serial number: 0009187955
   Coding: 100001010001
   Shop #: WSC 50664 002 104857
   ASAM Dataset: EV_RCEPSAU48X 008016
   ROD: EV_RCEPSAU48X_008.rod
   VCID: 3F8CC8ECA68AFABC1D-806A

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 KH    HW: 8K0 907 064 KH
   Component: BCM2 2.0      H15 0711  
   Revision: 00002001    Serial number: 0352486413    
   Coding: 013B0E22A0B930958720053680040047
   Shop #: WSC 06335 000 00000
   VCID: 000E0B1093F4454424-8054

   Subsystem 1 - Part No SW: 7N0 959 591 B    HW: 7N0 959 591 B
   Component: J245EE04SKB03  H03 0090 
   Serial number: 0123456789ABCDEFGHIJ

   Subsystem 2 - Part No SW: 7N0 959 591 B    HW: 7N0 959 591 B
   Component: J394EE04SKB03  H03 0090 
   Serial number: 0123456789ABCDEFGHIJ

4 Faults Found:
02914 - Sensor 1 for Trunk/Hatch Closed (G525) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Time Indication: 0
                    Date: 2018.08.24
                    Time: 18:13:55

02915 - Sensor 2 for Trunk/Hatch Closed (G526) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Time Indication: 0
                    Date: 2018.08.24
                    Time: 18:13:55

03156 - Sensor for Anti-Theft System (G578) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Time Indication: 0
                    Date: 2018.08.24
                    Time: 18:13:59

01134 - Alarm Horn (H12) 
            004 - No Signal/Communication
             Freeze Frame:
                    Fault Status: 01100100
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 188
                    Mileage: 34475 km
                    Time Indication: 0
                    Date: 2018.08.24
                    Time: 18:13:59


-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-BOM.clb
   Part No SW: 8T1 035 223 A    HW: 8T1 035 223 A
   Component: DSP Prem      H05 0030  
   Revision: 00005001    Serial number: 94813037454706
   VCID: 2D5082A474E6782CBF-8078

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8K0 959 792 R    HW: 8K0 959 792 P
   Component: TSG BF        H02 0510  
   Revision:             Serial number: 0000126704127 
   Coding: 011D12215E01440004
   Shop #: WSC 06335 000 00000
   VCID: 4E92E52819206334E6-801A

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (----)       Labels: 8K0-907-801-V2.clb
   Part No SW: 8K0 907 801 N    HW: 8K0 907 801 J
   Component: EPB-4         H02 0005  
   Revision: --------    Serial number: 20000000545768
   ASAM Dataset: EV_ParkiBrake 001028
   ROD: EV_ParkiBrake_AU48.rod
   VCID: 3A7AB9F8BDA8DF942A-806E

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (R)       Labels: Redir Fail!
   Part No SW: 4G0 035 061 Q    HW: 4G0 035 061 
   Component: Radio U DAB   H60 0150  
   Revision: AB001007    Serial number: 109K60E7992209
   Coding: 010103010000000001
   Shop #: WSC 06335 000 00000
   VCID: 2B548CBC4AF2761CA1-807E

No fault code found.

-------------------------------------------------------------------------------
Address 5C: Lane Maintain.        Labels: None
   Part No SW: 8T0 907 217 A    HW: 4E0 907 217 C
   Component: J759 HC             0040  
   Revision: 00H08006    Serial number: 600214B2000165
   Coding: 0002204
   Shop #: WSC 06335 000 00000
   VCID: 377CA0CC46BAC2FCD5-8062

No fault code found.

-------------------------------------------------------------------------------
Address 5F: Information Electr. (J794)       Labels:. 4E0-035-6xx-5F.clb
   Part No SW: 8R2 035 666 H    HW: 8R2 035 666 H
   Component: H-BN-EU       H48 0897  
   Revision: --------    Serial number: 515K10E7503269
   Coding: 1A0101060205A9EF7D80CB5E00000403E40000020000000000
   Shop #: WSC 50664 002 1048576
   VCID: 3E72B5E8A980F3B416-806A

   Subsystem 1 - Part No: 8R0 060 884 CH
   Component: EUR 2014  2004 

   Subsystem 2 - Part No SW: 8R0 919 604 A    HW: 8R0 919 604 A
   Component: DU7 High  H42 0104 
   Serial number: A130KZ0E3196812     

   Subsystem 3 - Part No SW: 8T0 919 611 L    HW: 8T0 919 611 C
   Component: E0380 Bedient  H02 0030 
   Serial number: 00000002055351      

   Subsystem 4 - Part No: 8R0 060 961 G
   Component: CD-Database  5950 

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8K0 959 795 G    HW: 8K0 959 795 D
   Component: TSG HL        H01 0510  
   Revision:             Serial number: 0000126688328 
   Coding: 010C12204001240004
   Shop #: WSC 06335 000 00000
   VCID: 4682DD08F150AB745E-8012

No fault code found.

-------------------------------------------------------------------------------
Address 6C: Back-up Cam.        Labels: 8T0-907-441.clb
   Part No SW: 8R0 907 441 A    HW: 4L0 907 441 B
   Component: J772__Rearview      0040  
   Revision: --H09---    Serial number: 525PA8-J49A6JS
   Coding: 1020010
   Shop #: WSC 06335 000 00000
   VCID: 346697C057CC29E4F0-8060

No fault code found.

-------------------------------------------------------------------------------
Address 6D: Trunk Elect. (J605)       Labels: Redir Fail!
   Part No SW: 8R0 827 851 D    HW: 8R0 827 851 D
   Component: J605  Master  H56 0330  
   Revision: --------    Serial number: 8R0827851D    
   VCID: 3D70B2E4A486E8AC0F-8068

   Subsystem 1 - Part No SW: 8R0 827 852 D    HW: 8R0 827 852 D
   Component: J756  Slave  H56 0330 
   Serial number: 8R0827852D          

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-795.clb
   Part No SW: 8K0 959 795 G    HW: 8K0 959 795 D
   Component: TSG HR        H01 0510  
   Revision:             Serial number: 0000126699217 
   Coding: 010C12204001240004
   Shop #: WSC 06335 000 00000
   VCID: 4682DD08F150AB745E-8012

No fault code found.

-------------------------------------------------------------------------------
Address A9: Struct. Borne Sound (J869)       Labels: 4H0-907-159.clb
   Part No SW: 8R0 907 159     HW: 4H0 907 159 A
   Component: SAS-GEN 2     H06 0007  
   Serial number: 141021202723
   ASAM Dataset: EV_SoundActuaGen2AU64X 003010
   ROD: EV_SoundActuaGen2AU64X.rod
   VCID: 79F866F4F82E148C63-802C

No fault code found.

-------------------------------------------------------------------------------
Address C0: Act. for Ext. Noise (J943)       Labels: 4G0-907-160.clb
   Part No SW: 8R0 907 160     HW: 4G0 907 160 B
   Component: SAS-GEN 2 AGA H09 0002  
   Serial number: 141021200750
   ASAM Dataset: EV_ActuaForExterNoiseUDS 003013
   ROD: EV_ActuaForExterNoiseUDS.rod
   VCID: 71E85ED4A05E5CCCDB-8024

No fault code found.

End-------------------------(Elapsed Time: 04:27)-------------------
 
   #69  

DarkyUK

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On my A5 these connect directly to the Door Controller via a short wire, I can't imagine it being loom damage in that case in both at the same time. Are they connected correctly (polarity)?
 
   #70  

RussJ

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On the Q5 retrofit they connect to battery 12v and back to the rear slave module. The only connection within the door is an earth(which I've checked).
The lights, being LEDs, are polarity sensitive and wont work the wrong way round. I think the module drops the return line to earth in order to flash the lights. Certainly touching a grounded wire to the return causes the lights to switch on.
 
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RussJ

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Just completed the loom by-pass test.
Same warning light error message on both sides.
I guess that confirms that it is the module(s).

The correct part numbers for my car are 8T0 907 566b/568b but they seem to be in short supply.
Can I use modules with similar numbers like 8U0 907 566 (i think from a Q3) or any other 8*0 907 566, either as they come or after re-programming if possible?
 
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andyhud

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You sure it isnt 566 and 590 part number wise?
 
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RussJ

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8T0 907 566/568 are the correct numbers according to my online catalogue and Norwich Audi.
8T0 907 590 isn't recognised as a valid part number.
 
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andyhud

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Fair do's .. was a long shot. 566 and 590 are on the MLBEvo platform like Q7 4M etc.
 
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Can you try one thing to trick the modules, what if you add some more load to the led modules by using a resistor in parallel?
 
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MasterTommy

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Dont these modules need parameterization?
 
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If they are used modules they are parameterized already.
 
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RussJ

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Sorry its been so long since I updated this thread but I've been away on holiday and frankly needed a break from Audi electrics!
When I got back I once again went through the wiring to check for errors but couldn't find anything wrong.
I decided it was time to admit defeat and take the car to an Audi retrofit expert and see if they could spot where i was going wrong.
Today I drove down to HazzyDayz near St Albans and sure enough they identified my error.
Its a little difficult to explain but here goes:
According to the wiring diagram, there are both switched and permanent supplies to the modules. I took supply from two spare fuse positions in the dashboard fuse box, one switched and one permanent
I had always wondered why the modules needed both switched and permanent but assumed the wiring diagram was correct.
In fact the "permanent" supply originates from the modules and not as a separate supply from the fuse box. This wasn't how I interpreted the diagram as it refers to B310 as a "30" connection within the wiring harness which I thought was a permanent 12v and hence hooked it up to the fuse box. And because I connected the warning lights directly to a 12v source, the module generated the "short to positive" error.
Cutting the supply to the warning lights got everything working as it should with no error messages.
Tomorrow I'll go out for a drive and see if I'm going to need re-calibration of the radar modules but since they came off a 2015 SQ5 like mine I'm hoping they'll work straight out of the box.
Thanks everyone for sticking with me on this long saga and for your help and interest, it was much appreciated.
Russ
 
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Good that the problem was found and resolved.

It's not admitting defeat what you showed, it's showing strength when you're able to admit that you cannot fix this. And sometimes it's a good thing to have a second pair of eyes take a look on what you've done. You easily get "blind" for your own work and overlook something :)
 
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