Bit of background on the problem, I have a 2010 a4 tdi that was dropped out to me as a non start. Owner believed a mouse had gotten in behind the dash and eaten the loom. It arrived with the dashboard removed.

I carried out a full scan on it and pulled the following codes

Code:
Sunday,07,April,2019,15:44:57:01261
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8.1 x64
VCDS Version: 18.9.1.0 (x64)
Data version: 20190114 DS296.0
www.Ross-Tech.com


VIN: WAUZZZ8K6AA179306   License Plate: 10TS
Mileage: 185930km-115531mi   Repair Order: 



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Chassis Type: 8K-AU48 (8T0)
Scan: 01 03 05 08 09 10 15 16 17 19 42 46 47 52 53 56 62 72 77

VIN: WAUZZZ8K6AA179306   Mileage: 185930km-115531miles

01-Engine -- Status: Malfunction 0010
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
05-Acc/Start Auth. -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- Status: Malfunction 0010
10-Park/Steer Assist -- Status: OK 0000
15-Airbags -- Status: Malfunction 0010
16-Steering wheel -- Status: OK 0000
17-Instruments -- Status: OK 0000
19-CAN Gateway -- Status: Malfunction 0010
42-Door Elect, Driver -- Status: OK 0000
46-Central Conv. -- Status: OK 0000
47-Sound System -- Status: OK 0000
52-Door Elect, Pass. -- Status: OK 0000
53-Parking Brake -- Status: OK 0000
56-Radio -- Status: OK 0000
62-Door, Rear Left -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000
 
-------------------------------------------------------------------------------
Address 01: Engine (J623-CAGB)       Labels:. 03L-906-019-CAG.clb
   Part No SW: 03L 906 019 C    HW: 03L 906 019 AL
   Component: R4 2,0L EDC   H25 8428  
   Revision: 25H25---    
   Coding: 0A194012232503080000
   Shop #: WSC 00441 210 91426
   ASAM Dataset: EV_ECM20TDI03L906019C A02006
   ROD: EV_ECM20TDI03L906019AL.rod
   VCID: 2B50A0274201DD1258-807E

4 Faults Found:
4695 - Function Restriction due to Faults in Other Modules 
          U1113 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:52

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 11 °C
                    Intake air temperature: 13 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.020 V
                    Unlearning counter according OBD: 40
                    Cruise Control System (CCS): switch position-Bits 0-7: 129
                    CCS status-Bits 0-7: 232
                    Cr Ctl st Sh Off Irv Lst-Bits 0-7: 5
                    Cr Ctl st Sh Off Rv Lst-Bits 0-7: 255
                    Cr Ctl v Des Dspl: 0.00 km/h
                    Sig Reset Env x Id-Bits 0-7: 0
                    Sig Reset Env x Id-Bits 0-7: 101
                    Cr Ctl st Shut Offirev-Bits 0-7: 32

4698 - Function Restriction due to Faults in Other Modules 
          U1113 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:52

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 11 °C
                    Intake air temperature: 13 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.020 V
                    Unlearning counter according OBD: 40
                    Cruise Control System (CCS): switch position-Bits 0-7: 129
                    CCS status-Bits 0-7: 232
                    Cr Ctl st Sh Off Irv Lst-Bits 0-7: 5
                    Cr Ctl st Sh Off Rv Lst-Bits 0-7: 255
                    Cr Ctl v Des Dspl: 0.00 km/h
                    Sig Reset Env x Id-Bits 0-7: 0
                    Sig Reset Env x Id-Bits 0-7: 101
                    Cr Ctl st Shut Offirev-Bits 0-7: 32

4699 - Function Restriction due to Faults in Other Modules 
          U1113 00 [039] - -
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:52

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 11 °C
                    Intake air temperature: 13 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.020 V
                    Unlearning counter according OBD: 40
                    Cruise Control System (CCS): switch position-Bits 0-7: 129
                    CCS status-Bits 0-7: 232
                    Cr Ctl st Sh Off Irv Lst-Bits 0-7: 5
                    Cr Ctl st Sh Off Rv Lst-Bits 0-7: 255
                    Cr Ctl v Des Dspl: 0.00 km/h
                    Sig Reset Env x Id-Bits 0-7: 0
                    Sig Reset Env x Id-Bits 0-7: 101
                    Cr Ctl st Shut Offirev-Bits 0-7: 32

4640 - Engine Oil Temp. Sensor (G8) 
          P0197 00 [039] - Signal too Low
          Not Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:55

                    Engine speed: 0.00 /min
                    Normed load value: 0.0 %
                    Vehicle speed: 0 km/h
                    Coolant temperature: 11 °C
                    Intake air temperature: 13 °C
                    Ambient air pressure: 1000 mbar
                    Voltage terminal 30: 14.020 V
                    Unlearning counter according OBD: 40
                    Fl Sys dvol Fl Cons All Tot: 0.00 l/h
                    Engine oil temperature: 22.7 °C
                    Oil warning threshold: 31.500 mm
                    Control Module temperature: 20.8 °C
                    Oil fill level: 120.000 mm
                    Ambient temperature: 11.5 °C
                    Fuel temperature: 12.5 °C

Readiness: 0 0 0 0 1 

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V1.clb
   Part No SW: 8K0 907 379 BB    HW: 8K0 907 379 BB
   Component: ESP8 front    H04 0020  
   Revision: --------    Serial number: --------------
   Coding: 160504
   Shop #: WSC 06325 000 00000
   VCID: 7AFE5563F5DBB49A93-802E

No fault code found.

-------------------------------------------------------------------------------
Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
   Part No SW: 8K0 907 064 DC    HW: 8K0 907 064 DC
   Component: BCM2 1.1      H02 0328  
   Revision: 00002001    
   Coding: 033100
   Shop #: WSC 06325 000 00000
   VCID: 74E27B5BD7BFC2EAC9-8020

   Subsystem 1 - Part No SW: 8T0 959 754 K    HW: 8T0 959 754 K
   Component: FBSAUDIB8 IDG  H61 0072 
   Serial number: 0511000076076002    

   Subsystem 2 - Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
   Component: J764 ELV MLB  H37 0042 
   Serial number: 0210000070594015    

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J255)       Labels:. 8Tx-820-043-3Z.clb
   Part No SW: 8T2 820 043 AF    HW: 8T2 820 043 AF
   Component: KLIMA 3 ZONEN H08 0180  
   Revision: D0000000    Serial number: 01070520100686
   Coding: 34240000
   Shop #: WSC 06325 000 00000
   VCID: 76E64153C1C3D0FAF7-8022

6 Faults Found:
00256 - A/C Pressure/Temperature Sensor (G395) 
            002 - Lower Limit Exceeded
             Freeze Frame:
                    Fault Status: 01100010
                    Fault Priority: 2
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                    Temperature: 12.0°C
                    Temperature: 11.0°C
                    Load: 0.0 %
                    Absolute Pres.: 1.0 bar
                    RPM: 0 /min
                    Speed: 0.0 km/h
                    Current: 0.000 A
                    Temperature: 12.0°C

01230 - Left Footwell Vent Temperature Sensor (G261) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                    Temperature: 12.0°C
                    Speed: 0.0 km/h
                    Voltage: 13.90 V

01231 - Right Footwell Vent Temperature Sensor (G262) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                    Temperature: 12.0°C
                    Speed: 0.0 km/h
                    Voltage: 13.90 V

00797 - Sunlight Photo Sensor (G107) 
            009 - Open or Short to Ground
             Freeze Frame:
                    Fault Status: 01101001
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                    Temperature: 13.0°C
                    Temperature: 12.0°C
                    Output: 300 W
                    Output: 300 W

03037 - Rear Temperature Selection Potentiometer (G538) 
            010 - Open or Short to Plus
             Freeze Frame:
                    Fault Status: 01101010
                    Fault Priority: 3
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                        ON
                    Voltage: 14.00 V
                    Voltage: 4.90 V

01206 - Signal for Duration of Ignition Off Time 
            008 - Implausible Signal
             Freeze Frame:
                    Fault Status: 01101000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52


-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
   Part No SW: 8K0 907 063 K    HW: 8K0 907 063 K
   Component: BCM1 1.0      H29 0380  
   Revision: 06029001    Serial number: 00000000661128
   Coding: 690040B10034A7010001000000005F5F001D020806000141000000
   Shop #: WSC 06325 000 00000
   VCID: 37788C57864969F22C-8062

   Subsystem 1 - Part No SW: 8K2 955 119 A    HW: 8T2 955 119   Labels: 1KX-955-119.CLB
   Component: WWS 030510  H05 0070 
   Serial number: SWF10050035109      
   Coding: 00FD11

   Subsystem 2 - Part No SW: 8K0 955 559     HW: 8K0 955 559   Labels: 8K0-955-559.CLB
   Component: RLS  H04 0003 
   Serial number: 10897269            
   Coding: 025028

   Subsystem 3 - Part No SW: 8K0 941 531 AL    HW: 8K0 941 531 AL
   Component: E1 - LDS  H08 0090 
   Serial number: 00000000002904101535

1 Fault Found:
00003 - Control Module 
            014 - Defective - Intermittent
             Freeze Frame:
                    Fault Status: 00111110
                    Fault Priority: 1
                    Fault Frequency: 1
                    Reset counter: 255
                    Mileage: 185923 km
                    Time Indication: 0
                    Date: 2018.04.15
                    Time: 11:31:00


-------------------------------------------------------------------------------
Address 10: Park/Steer Assist (J446)       Labels:. 8K0-919-475.clb
   Part No SW: 8K0 919 475 Q    HW: 8K0 919 475 
   Component: PARKHILFE 4K  H06 0070  
   Revision: 11001001    Serial number: 51241012306906
   Coding: 000003
   Shop #: WSC 06325 000 00000
   VCID: 4798FC97F6A919725C-8012

No fault code found.

-------------------------------------------------------------------------------
Address 15: Airbags (J234)       Labels:* 8K0-959-655.clb
   Part No SW: 8K0 959 655 J    HW: 8K0 959 655 J
   Component: AirbagVW-AU10 H41 0610  
   Serial number: 003GKD0G4MW/  
   Coding: 30363435363030303030554A3052384B3053
   Shop #: WSC 06325 000 00000
   ASAM Dataset: EV_AirbaECUVWAUDI010 003010
   ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
   VCID: 4482EB9BCF9F326AB9-8010

   Crash sensor for side airbag: driver side: 
   Serial number: 6334MSME5334114F9

   Crash sensor for side airbag: front passenger side: 
   Serial number: 6344MSME5243624EE

   Crash sensor for side airbag: rear: driver side: 
   Serial number: 6352QSME465C2406G

   Crash sensor for side airbag: rear: passenger side: 
   Serial number: 6362QSME7D5B3810Q

   Crash sensor for front airbag: driver side: 
   Serial number: 63732SME66092E3FB

   Crash sensor for front airbag: front passenger side: 
   Serial number: 63832SME66090C471

4 Faults Found:
9437723 - Igniter for Passenger's Airbag 
          B1002 1B [137] - Resistance Too High
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:54

9437979 - Igniter 2  for Passenger's Airbag 
          B1003 1B [137] - Resistance Too High
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:54

9445397 - Key switch for deactivation of passenger-side airbag 
          B1020 15 [137] - Open or Short to Plus
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:54

9446677 - Redundant signal path for airbag shut-off; passenger side 
          B1025 15 [137] - Open or Short to Plus
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 185938 km
                    Date: 2009.08.24
                    Time: 17:39:54


-------------------------------------------------------------------------------
Address 16: Steering wheel (J527)       Labels:. 8K0-953-568.clb
   Part No SW: 8K0 953 568 F    HW: 8K0 953 568 F
   Component: Lenks.Modul   H16 0014  
   Revision: --------    Serial number: 90304JE6000LV 
   Coding: 000016
   Shop #: WSC 06325 000 00000
   VCID: 3D749E7FA47543A2F6-8068

   Component: E221 - MFL  H02 0010 

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
   Part No SW: 8K0 920 980 N    HW: 8K0 920 980 N
   Component: KOMBIINSTR.   H20 0255  
   Revision: 00400000    Serial number: CIZ76TE4A     
   Coding: 2F04080002002600010000
   Shop #: WSC 06325 000 00000
   VCID: 3D749E7FA47543A2F6-8068

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
   Part No SW: 8T0 907 468 AB    HW: 8T0 907 468 H
   Component: GW-BEM 5CAN   H06 0117  
   Revision: GB800053    Serial number: 5300G1050285BD
   Coding: 00CF07
   Shop #: WSC 06325 000 00000
   VCID: 010C228F980DE742D2-8054

   Subsystem 1 - Part No SW: 8X0 915 181     HW: 8X0 915 181 
   Component: J367-BDM  H07 0140 
   Serial number: 00000000005650186088

   Subsystem 2 - Part No SW: 8K0 959 663     HW: 8K0 959 663 
   Component: J532_DCDCStab  H16 0038 
   Serial number: 10119000511021200180

1 Fault Found:
03041 - Energy Management Active 
            000 -  - 
             Freeze Frame:
                    Fault Status: 01100000
                    Fault Priority: 7
                    Fault Frequency: 1
                    Reset counter: 153
                    Mileage: 185938 km
                    Time Indication: 0
                    Date: 2009.08.24
                    Time: 17:39:52

             Freeze Frame:
                    Bin. Bits:    10111
                    Voltage: 14.00 V
                    Count: 6


-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
   Part No SW: 8K0 959 793 J    HW: 8K0 959 793 E
   Component: TSG FA        H11 0306  
   Revision:             Serial number: 0000103803403 
   Coding: 011002204001410001
   Shop #: WSC 06325 000 00000
   VCID: 4798FC97F6A919725C-8012

No fault code found.

-------------------------------------------------------------------------------
Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
   Part No SW: 8K0 907 064 DC    HW: 8K0 907 064 DC
   Component: BCM2 1.1      H02 0328  
   Revision: 00002001    Serial number: 0129555872    
   Coding: 011B0622003904400020013680000000
   Shop #: WSC 06325 000 00000
   VCID: 74E27B5BD7BFC2EAC9-8020

   Subsystem 1 - Part No: 8K0 951 177 
   Component: DWA-Sensor  H02 0040 

   Subsystem 2 - Part No: 1K0 951 605 C
   Component: LIN BACKUP HO  H05 1501 

No fault code found.

-------------------------------------------------------------------------------
Address 47: Sound System (J525)       Labels:. 8T0-035-223-ASC.clb
   Part No SW: 8T0 035 223 AH    HW: 8T0 035 223 
   Component: DSP STD       H07 0230  
   Revision: S2200000    
   Coding: 0203010102
   Shop #: WSC 06325 000 00000
   VCID: 74E27B5BD7BFC2EAC9-8020

No fault code found.

-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
   Part No SW: 8K0 959 792 J    HW: 8K0 959 792 E
   Component: TSG BF        H11 0306  
   Revision:             Serial number: 0000103787294 
   Coding: 011002204001410001
   Shop #: WSC 06325 000 00000
   VCID: 4686F193F1A3007AA7-8012

No fault code found.

-------------------------------------------------------------------------------
Address 53: Parking Brake (J540)       Labels: 8K0-907-801-V1.clb
   Part No SW: 8K0 907 801 H    HW: 8K0 907 801 H
   Component: EPB Audi B8   H09 0100  
   Revision: 00000003    Serial number: 00000000634778
   Shop #: WSC 00000 000 00000
   VCID: 3462BB5B973F82EA09-8060

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503)       Labels:. 8Tx-035-1xx-56.clb
   Part No SW: 8T2 035 186 P    HW: 8T2 035 186 P
   Component: Concert3      H06 0350  
   Revision: 00000010    Serial number: AUZ5Z6J1397649
   Coding: 0502008201018D00035B070000
   Shop #: WSC 06325 000 00000
   VCID: 4584F69FCCA50B62AE-8010

   Subsystem 1 - Part No SW: 8T0 919 603 F    HW: 8T0 919 603 F
   Component: Display  

No fault code found.

-------------------------------------------------------------------------------
Address 62: Door, Rear Left (J388)       Labels:. 8K0-959-795.clb
   Part No SW: 8K0 959 795 C    HW: 8K0 959 795 C
   Component: TSG HL        H10 0306  
   Revision:             Serial number: 0000104049446 
   Coding: 010002204001210001
   Shop #: WSC 06325 000 00000
   VCID: 428EED83DD8B3C5A8B-8016

No fault code found.

-------------------------------------------------------------------------------
Address 72: Door, Rear Right (J389)       Labels:. 8K0-959-795.clb
   Part No SW: 8K0 959 795 C    HW: 8K0 959 795 C
   Component: TSG HR        H10 0306  
   Revision:             Serial number: 0000104049443 
   Coding: 010002204001210001
   Shop #: WSC 06325 000 00000
   VCID: 428EED83DD8B3C5A8B-8016

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone        Labels: 8P0-862-335.lbl
   Part No SW: 8T0 862 335 D    HW: 8T0 862 335 D
   Component: FSE_256x BT     H39 0600  
   Revision: 00000000    Serial number: 00000005188996
   Coding: 0010320
   Shop #: WSC 06325 000 00000
   VCID: 3B7090677A614D92C8-806E

No fault code found.

End-------------------------(Elapsed Time: 03:15)--------------------------
The car will crank over, the ecu is seeing cam and crank rpm. There doesnt appear to be any fuel pressure however, the fuel pump wont prime when the ignition is first turned on like i would expect??

Ive checked all fuses and all are good, checked all relays and all appear to be ok, ive swapped them with known good ones as a precaution but makes no difference.

All grounds to the ecu appear to be good, all 30 and 15 voltage feeds are ok. Power is present @ the fuel pump relay plugs and they can be activated via output tests so the wiring side of things all seems to be ok.

Has anyone got any suggestions or come accross this before?