Audi A8 D2 (1995) immo issues

   #1  

itavaltalainen

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Hello,
I was asked to assist on a '95 A8 V8 petrol. Has been sat idly for a few months and now won't fire up.

Read fault codes and it's got an issue with pick up coil and wiring most likely, was going to try and re-match transponders just in case. Opened the immo box and read the 94c46, so I've got the login code. Box accepts the code but it keeps dropping the connection (you can hear something clicking away, the same note it makes when VCDS first connects), connection is flakey even without logging in and going into measuring blocks (recognises keys etc - first three values in measuring block 01 are 1).

Is this likely just an issue with battery voltage or should the garage be looking somewhere else (did tell them to replace the coil and wiring)?
Car was connected to a booster battery.

Cheers for your assistance.

Code:
Wednesday,19,June,2019,17:29:39:58731
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 7 x64
VCDS Version: 19.6.0.2 (x64)  HEX-NET CB: 0.4505.4
Data version: 20190529 DS308.0
www.Ross-Tech.com


VIN: WAUZZZ4DZTN002xxx   License Plate: A8D2
Mileage: 236610km-147022mi   Repair Order: 



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


Chassis Type: 4D - Audi A8 D2 (1994 > 2003)
Scan: 25 01 03 08 11 15 16 17 18 35 37 45 55 56 57 65 67 75 76 77
          02
 
   Mileage: 236610km-147022miles
-------------------------------------------------------------------------------
Address 25: Immobilizer        Labels: 4A0-953-234.lbl
   Part No: 4A0 953 234 
   Component: IMMO AUZ9Z0S7465073 D76  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 5F8E70CDDFD8F7B7C8-50AE

1 Fault Found:
01176 - Key 
            07-10 - Signal too Low - Intermittent

-------------------------------------------------------------------------------
Address 01: Engine        Labels: Redir Fail!
   Part No: 4D0 907 557 A
   Component: 3,7L V8/4V  MOTR AT D03  
   Coding: 04153
   Shop #: WSC 00000  
   VCID: 2A18D119D41A421FEF-4B1E

2 Faults Found:
18010 - Power Supply Terminal 30 
            P1602 - 35-00 - Voltage too Low
17978 - Engine Start Blocked by Immobilizer 
            P1570 - 35-10 -  - Intermittent
Readiness: N/A

-------------------------------------------------------------------------------
Address 03: ABS Brakes        Labels: 4D0-907-379-ASR.lbl
   Part No: 4D0 907 379 N
   Component: ABS/ASR-EZ BOSCH 5 7408  
   Coding: 00002
   Shop #: WSC 02314  
   VCID: 393AFE5521BCF98796-51CE

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC        Labels: Redir Fail!
   Part No: 4D0 820 043 B
   Component: D2-KLIMAVOLLAUTOMAT_D03  
   Coding: 00080
   Shop #: WSC 02314  
   VCID: 1B7604DD8B40AB9764-2570

1 Fault Found:
00604 - Potentiometer Positioning Motor for Air Flow Flap (G113) 
            30-10 - Open or Short to Plus - Intermittent

-------------------------------------------------------------------------------
Address 15: Airbags        Labels: 8A0-959-655.lbl
   Part No: 8A0 959 655 K
   Component: Airbag V AUDI      D00   
   Coding: 01022
   Shop #: WSC 02314  
   VCID: 3B36E45D2B80CB9784-5184

2 Faults Found:
00588 - Airbag Igniter; Driver Side (N95) 
            32-10 - Resistance Too High - Intermittent
01025 - Trigger for On Board Diagnostic Lamp; Malfunction 
            31-10 - Open or Short to Ground - Intermittent

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 4D0-919-033-MYW.lbl
   Part No: 4D0 919 033 F
   Component: D2-KOMBIINSTRUMENT__D18  
   Coding: 00083
   Shop #: WSC 43681  
   VCID: 271E282DC7087F77F0-5042

No fault code found.

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 4D0 927 156 G
   Component: AG5 01V  3.7lV8 RDW D59  
   Coding: 00000
   Shop #: WSC 00000  
   VCID: 2D12DA05E5F455270A-4B3C

2 Faults Found:
01044 - Control Module Incorrectly Coded 
            35-00 - -
00526 - Brake Light Switch (F) 
            27-00 - Implausible Signal

End----(Elapsed Time: 04:56, VBatt start/end: 11.5V/11.7V. VIgn 0.0V)------


EEPROM content
Code:
53 37 46 50 73 94 0C 02 03 32 00 00 00 00 00 00 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B A3 AE 00 00 03 03 05 19 02 53 FF 6B 9A 01 9A 01 02 53 76 20 00 00 00 00 00 00 09 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 48 06 B5 B5 71 06 B9 24 62 06 72 62 EC 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B 6B


Login 019A = 00410
 
Last edited:
   #2  

Jack@European_Parts

Gone But Not Forgotten
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Sure sounds like voltage or terminal relay issue and maybe a bad or weak key coil or proximity of transponder is incorrect.
 
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