Having an issue with my 3.7 petrol/LPG Audi A8. I've included a full scan, and I'm aware of the other issues, but there is one error in particular that I would like to address. That is the '18265 Load Signal' error I'm getting in modules 02 (Trans) and 03 (ABS). Another symptom I'm getting is that the ABS and ESP lights coming on, and the transmission giving a small 'thump' when put into drive. If I clear the codes, the lights go off, and it won't 'thump' going into drive.

I've searched the forum, and although I can find a few scans with the 18265 code in them, that code is never talked about. A Google search has returned a few interesting ones common to some VAG cars, that being a broken wire on the alternator sense cable. Anyone familiar with that, and could this be a possibility with the A8?

Things I've changed over the last few months - all vacuum pipes, fuel pressure regulator, crankcase breather valve, MAF, cleaned all ABS sensors, brake switch. I have also used ELSA to run tests on the ABS sensors, MAF sensor and O2 sensors (the B1S1 comes and goes), and also checked voltages.

Would it be possible to connect a new sensor up to the car, but not install it, just to see if that sorts the 01 (Engine) codes out, as the ABS and ESP lights come on after about 3 miles? If it does. then I can attempt to install it properly?

Finally (for now anyway), what (and how) could I log in real-time for those 3 odd miles until the ABS and ESP lights come on, so that I can try and track down the culprit?

Thanks.

Code:
Tuesday,14,October,2014,16:31:59:42449
VCDS -- Windows Based VAG/VAS Emulator
VCDS Version: 12.12.3.0 (x64)
Data version: 20140905


VIN: WAUZZZ4D92N002072   License Plate: LV51MWJ
Mileage: 67820   Repair Order: VCDScable



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


Chassis Type: 4D (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
 
VIN: WAUZZZ4D92N002072   
-------------------------------------------------------------------------------
Address 01: Engine        Labels: Redir Fail!
   Part No: 4D0 907 558 AB
   Component: 3.7L V8/5V      G   0002  
   Coding: 11753
   Shop #: WSC 23143  
   VCID: 6DD640B227342F7640B-5160
   WAUZZZ4D92N002072     AUZ7Z0A1855153

6 Faults Found:
17521 - Oxygen (Lambda) Sensor; B1 S1 
            P1113 - 35-10 - Internal Resistance too High - Intermittent
17536 - Fuel Trim; Bank 1 (Mult) 
            P1128 - 35-10 - System too Lean - Intermittent
17537 - Fuel Trim; Bank 2 (Mult) 
            P1129 - 35-10 - System too Rich - Intermittent
16485 - Mass Air Flow Sensor (G70) 
            P0101 - 35-00 - Implausible Signal
17545 - Fuel Trim: Bank 1 (Add) 
            P1137 - 35-00 - System too Rich
17547 - Fuel Trim: Bank 2 (Add) 
            P1139 - 35-00 - System too Rich
Readiness: 0010 1101

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Address 03: ABS Brakes        Labels: 8D0-907-389.lbl
   Part No: 4D0 907 389 E
   Component: ABS/ESP allrad      D56  
   Coding: 08397
   Shop #: WSC 02313  
   VCID: 316E9CC2FB8C8B96243-5160

1 Fault Found:
18265 - Load Signal 
            P1857 - 35-00 - Error Message from ECU

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Address 08: Auto HVAC        Labels: 4D0-820-043-MYX.lbl
   Part No: 4D0 820 043 P
   Component: A8-Klimavollautomat D11  
   Coding: 00081
   Shop #: WSC 00315  
   VCID: 295E74A2D35CF356EC3-2590

No fault code found.

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Address 15: Airbags        Labels: 4D0-959-655-AI8.lbl
   Part No: 4D0 959 655 T
   Component: Airbag Front+Kopf  5001  
   Coding: 01417
   Shop #: WSC 02335  
   VCID: 4382C60A51300906C6F-5160

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments        Labels: 4D0-919-033-MYX.lbl
   Part No: 4D0 919 035 AQ
   Component: KOMBI+WEGFAHRS.VDO D37   
   Coding: 16483
   Shop #: WSC 00209  
   VCID: 75E668D24F64E7B6B8B-5160
   WAUZZZ4D92N002072     AUZ7Z0A1855153

No fault code found.

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Address 35: Centr. Locks        Labels: 8D0-862-257.lbl
   Part No: 8L0 862 257 P
   Component: CV-Pump, Alarm, RC  D17  
   Coding: 16203
   Shop #: WSC 00315  
   VCID: 428CC30E4E2A000ECD9-4EEC

1 Fault Found:
01134 - Alarm Horn (H12) 
            77-00 - Internal Supply Voltage

-------------------------------------------------------------------------------
Address 37: Navigation        Labels: 4B0-035-192-RNSD-37.lbl
   Part No: 4D0 035 192 N
   Component: RNS 4.1 H05    BNO 0140  
   VCID: 2A5C8BAED65AF84EE59-4B06

No fault code found.

-------------------------------------------------------------------------------
Address 45: Inter. Monitor        Labels: 4B0-951-178.lbl
   Part No: 4D0 951 177 B
   Component: Innenraumueberw.    D06  
   Coding: 00001
   Shop #: WSC 00000  
   VCID: 285871A6C856CA5EF3D-5142

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio        Labels: 4B0-035-192-RNSD-56.lbl
   Part No: 4D0 035 192 N
   Component: Radio          BNO 0001  
   Coding: 00205
   Shop #: WSC 02314  
   VCID: 2A5C8BAED65AF84EE59-4B06

No fault code found.

-------------------------------------------------------------------------------
Address 57: TV Tuner        Labels: 4D0-919-146.clb
   Part No: 4D0 919 146 B
   Component: TV Tuner        H06 0704  
   Coding: 0000030
   Shop #: WSC 00000 000 00000
   VCID: 285871A69856CA5EF3D-5160

No fault code found.

-------------------------------------------------------------------------------
Address 76: Park Assist        Labels: 4D0-919-283.lbl
   Part No: 4D0 919 283 
   Component: Parkingsystem A8 RDW D07  
   Coding: 01108
   Shop #: WSC 00209  
   VCID: E8D8B1A688D68A5EB3D-519A

No fault code found.

-------------------------------------------------------------------------------
Address 02: Auto Trans        Labels: 01V-927-156.lbl
   Part No: 4D0 927 156 DT
   Component: AG5 01V 3.7l5V  RdW 1920  
   Coding: 00111
   Shop #: WSC 00000  
   VCID: 7EF477FE7A52A4EEE91-5160

1 Fault Found:
18265 - Load Signal 
            P1857 - 35-00 - Error Message from ECU

End   ---------------------------------------------------------------------