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Thread: 2010 Audi A4, 2.0T FWD; Engine Cannot Be Reached

  1. #1
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    2010 Audi A4, 2.0T FWD; Engine Cannot Be Reached

    I'm a new DIY guy just trying to get my son's 2010 A4 (147K miles) to start after replacing the starter wire harness. After replacing the water pump and reassemble the front bumper and radiator, I had mistakenly ground the alternator causing a small fire. After replacing the whole wiring harness and a new battery, the car wouldn't start. I just heard the clicking noise by the ECU after pushing the remote key in the accessory mode. Also, the radiator fan would come on intermittently and would slowly drain the battery. So, I detached it temporarily and hookup the charger while I did a quick auto scan with Ross-Tech Hex-2 interface. I had also checked all the fuses and relays; they were good except one (F5 by the ECU fuse box area) for engine management. By the way, because there's no communication to the engine or ECU(?), I wasn't able to disengage my e-brake or reprogram it through the long adaption of the new battery as it kept reverting to the old battery info.

    I am trying to avoid taking it to the dealership as it gets very expensive. So, any help will be greatly appreciative.

    Here is the full auto scan result:

    Code:
    Tuesday,28,April,2020,15:44:18:19449
    VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8 x64
    VCDS Version: 20.4.1.0 (x64)  HEX-V2 CB: 0.4508.4
    Data version: 20200331 DS317.0
    www.Ross-Tech.com
    
    
    VIN: WAUAFAFL3AN016981   License Plate: 
    Mileage: 237230km-147407mi   Repair Order: 3B
    
    
    
    --------------------------------------------------------------------------------
    --------------------------------------------------------------------------------
    
    
    Chassis Type: 8T0
    Scan: 01 02 03 05 08 09 15 16 17 19 42 46 47 52 53 56 62 72
    
       Mileage: 237230km-147407miles
    
    01-Engine -- Status: Cannot be reached 1100
    02-Auto Trans -- Status: Malfunction 0010
    03-ABS Brakes -- Status: OK 0000
    04-Steering Angle -- Status: OK 0000
    05-Acc/Start Auth. -- Status: Malfunction 0010
    08-Auto HVAC -- Status: Malfunction 0010
    09-Cent. Elect. -- Status: Malfunction 0010
    15-Airbags -- Status: OK 0000
    16-Steering wheel -- Status: OK 0000
    17-Instruments -- Status: Malfunction 0010
    19-CAN Gateway -- Status: Malfunction 0010
    42-Door Elect, Driver -- 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: Malfunction 0010
    56-Radio -- Status: Malfunction 0010
    62-Door, Rear Left -- Status: OK 0000
    72-Door, Rear Right -- Status: OK 0000
    -------------------------------------------------------------------------------
    Address 01: Engine
    Cannot be reached
    
    -------------------------------------------------------------------------------
    Address 02: Auto Trans (J217)       Labels:| 0AW-927-156.clb
       Part No SW: 8K1 927 155 J    HW: 0AW 927 156 H
       Component: 0AW 20TAVSUSA H02 0004  
       Revision: --H02---    Serial number: 0000000295
       Coding: 000001
       Shop #: WSC 22102 444 85875
       ASAM Dataset: EV_TCMVL381 A02018
       ROD: EV_TCMVL381.rod
       VCID: 3B2332E603E11F43469-806E
    
    2 Faults Found:
    2264 - No Communication with Engine Control Module (SAE ECM/PCM) 
              U0100 00 [167] - -
              [Engine control unit No communication]
              MIL ON - Not Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 6
                        Fault Frequency: 1
                        Mileage: 237232 km
                        Date: 2009.04.28
                        Time: 04:17:37
    
                        Engine speed: 100.00 /min
                        Transmission input speed: 1 /min
                        Transmission output speed: 1 /min
                        Engine torque: 0 Nm
                        Transmission fluid temperature: 26 °C
                        Accelerator position: 0.0 %
                        Clutch status: 1
                        Unlearning counter according OBD: 40
                        Occurrence_counter_over_length_of_life: 3
    
    7066 - No Communication with Engine Control Module (SAE ECM/PCM) 
              U0100 00 [047] - -
              [Engine control unit No communication]
              Confirmed - Tested Since Memory Clear
                 Freeze Frame:
                        Fault Status: 00000001
                        Fault Priority: 6
                        Fault Frequency: 1
                        Mileage: 237232 km
                        Date: 2009.04.28
                        Time: 04:17:37
    
                        Engine speed: 100.00 /min
                        Transmission input speed: 1 /min
                        Transmission output speed: 1 /min
                        Engine torque: 0 Nm
                        Transmission fluid temperature: 26 °C
                        Accelerator position: 0.0 %
                        Clutch status: 1
                        Unlearning counter according OBD: 40
                        Occurrence_counter_over_length_of_life: 4
    
    
    -------------------------------------------------------------------------------
    Address 03: ABS Brakes (J104)       Labels:. 8K0-907-379-V1.clb
       Part No SW: 8K0 907 379 BT    HW: 8K0 907 379 BT
       Component: ESP8 front    H04 0010  
       Revision: --------    Serial number: --------------
       Coding: 080D10
       Shop #: WSC 02391 823 56573
       VCID: 0C41A13A164FE8FB3F3-8058
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 05: Acc/Start Auth. (J393)       Labels:. 8K0-907-064-05.clb
       Part No SW: 8K0 907 064 DF    HW: 8K0 907 064 DF
       Component: BCM2 1.1      H02 0321  
       Revision: 00002001    
       Coding: 090100
       Shop #: WSC 02399 823 56573
       VCID: 77ABEED67FC9FB23621-8022
    
       Subsystem 1 - Part No SW: 8K0 959 754 B    HW: 8K0 959 754 B
       Component: FBSAUDIB8 IDG  H71 0083 
       Serial number: 0815000083686009    
    
       Subsystem 2 - Part No SW: 8K0 905 852 D    HW: 8K0 905 852 D
       Component: J764 ELV MLB  H37 0042 
       Serial number: 0209000053992014    
    
    1 Fault Found:
    01330 - Central Control Module for Central Convenience (J393) 
                013 - Check DTC Memory
                 Freeze Frame:
                        Fault Status: 01101101
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
    
    -------------------------------------------------------------------------------
    Address 08: Auto HVAC (J255)       Labels: Redir Fail!
       Part No SW: 8T1 820 043 AM    HW: 8T1 820 043 AM
       Component: KLIMA 1 ZONE  H08 0171  
       Revision: A0000000    Serial number: 01270720090969
       Coding: 64002000
       Shop #: WSC 02391 823 56573
       VCID: 7CA1F1FA46EFD87B0F3-8028
    
    4 Faults Found:
    01206 - Signal for Duration of Ignition Off Time 
                008 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 7
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
    01314 - Engine Control Module 
                008 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
    00256 - A/C Pressure/Temperature Sensor (G395) 
                002 - Lower Limit Exceeded
                 Freeze Frame:
                        Fault Status: 01100010
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
                 Freeze Frame:
                        Temperature: 25.0°C
                        Temperature: 1.0°C
                        Load: 0.0 %
                        Absolute Pres.: 1.0 bar
                        RPM: 102 /min
                        Speed: 0.0 km/h
                        Current: 0.000 A
                        Temperature: 36.0°C
    
    01297 - Sensor for Vent Temperature; Footwell (G192) 
                010 - Open or Short to Plus
                 Freeze Frame:
                        Fault Status: 01101010
                        Fault Priority: 3
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
                 Freeze Frame:
                        Temperature: 25.0°C
                        Speed: 0.0 km/h
                        Voltage: 4.90 V
                        Voltage: 12.80 V
    
    
    -------------------------------------------------------------------------------
    Address 09: Cent. Elect. (J519)       Labels:. 8K0-907-063.clb
       Part No SW: 8K0 907 063 N    HW: 8K0 907 063 N
       Component: BCM1 1.0      H25 0380  
       Revision: 09025001    Serial number: 00000000315520
       Coding: 690000B1063C00010000080000007F5F0F14520800000001000000
       Shop #: WSC 02391 823 56573
       VCID: 3A2D37E20C5B264B5DF-806E
    
       Subsystem 1 - Part No SW: 8K1 955 119 A    HW: 8T1 955 119   Labels: 1KX-955-119.CLB
       Component: WWS 220709  H06 0070 
       Serial number: SWF09070225639      
       Coding: 00FD11
    
       Subsystem 2 - Part No SW: 8K0 941 531 AK    HW: 8K0 941 531 AK
       Component: E1 - LDS  H08 0090 
       Serial number: 00000000002207091480
    
    2 Faults Found:
    00576 - Terminal 15 
                008 - Implausible Signal
                 Freeze Frame:
                        Fault Status: 01101000
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:00
    
    01314 - Engine Control Module 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:00
    
    
    -------------------------------------------------------------------------------
    Address 15: Airbags (J234)       Labels:| 8K0-959-655.clb
       Part No SW: 8K0 959 655 H    HW: 8K0 959 655 H
       Component: AirbagVW-AU10 H37 0520  
       Serial number: 003EGD02AVTW  
       Coding: 303836354230303030304A55304C384B3053
       Shop #: WSC 02135 785 00200
       ASAM Dataset: EV_AirbaECUVWAUDI010 003010
       ROD: EV_AirbaECUVWAUDI010_003_AU48.rod
       VCID: 42DD4F02640B6E8B05F-8016
    
       Seat occupied recognition: 
       Subsystem 1 - Part No SW: 8K0 959 339 B    HW: 8K0 959 339 B
       Component: BF-Gewichtss.  H01 0030 
       Serial number: 5810000R0900004NXX
    
       Crash sensor for side airbag: driver side: 
       Serial number: 6334MSME4956160BF
    
       Crash sensor for side airbag: front passenger side: 
       Serial number: 6344MSME49555367I
    
       Crash sensor for side airbag: rear: driver side: 
       Serial number: 6352QSME0F353E12K
    
       Crash sensor for side airbag: rear: passenger side: 
       Serial number: 6362QSME0E361D28P
    
       Crash sensor for front airbag: driver side: 
       Serial number: 63732SME1E33450C+
    
       Crash sensor for front airbag: front passenger side: 
       Serial number: 63832SME1E331208W
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    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: 90304IGV000ER 
       Coding: 000014
       Shop #: WSC 02391 823 56573
       VCID: 3D273CFE1D75117378D-8068
    
       Component: E221 - MFL  H02 0003 
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 17: Instruments (J285)       Labels:. 8T0-920-xxx-17.clb
       Part No SW: 8K0 920 950 E    HW: 8K0 920 950 E
       Component: KOMBIINSTR.   H19 0253  
       Revision: 00300000    Serial number: BWX20MP79     
       Coding: 8B1209000300D705020000
       Shop #: WSC 02391 823 56573
       VCID: 313F10CED12DE513EC5-8064
    
    2 Faults Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 00:02:45
    
    00532 - Supply Voltage B+ 
                002 - Lower Limit Exceeded - Intermittent
                 Freeze Frame:
                        Fault Status: 00100010
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 137
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2020.04.25
                        Time: 19:20:39
    
    
    -------------------------------------------------------------------------------
    Address 19: CAN Gateway (J533)       Labels:. 8T0-907-468.clb
       Part No SW: 8T0 907 468 R    HW: 8T0 907 468 H
       Component: GW-BEM 5CAN   H06 0105  
       Revision: GB600050    Serial number: 5000G0972280D4
       Coding: 00C303
       Shop #: WSC 02391 823 56573
       VCID: 50F9754ABAE78C1B83B-8004
    
       Subsystem 1 - Part No SW: 8K0 915 181 E    HW: 8K0 915 181 E
       Component: J367-BDM  H06 0160 
       Serial number: 19087AC1070709      
    
    1 Fault Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:34
    
                 Freeze Frame:
                        Bin. Bits:    10111
                        Voltage: 12.70 V
                        Count: 6
                        Bin. Bits:    10000
                        Time: 25.40 s
    
    
    -------------------------------------------------------------------------------
    Address 42: Door Elect, Driver (J386)       Labels:. 8K0-959-793.clb
       Part No SW: 8K0 959 793 H    HW: 8K0 959 793 D
       Component: TSG FA        H11 0306  
       Revision:             Serial number: 0000009131361 
       Coding: 011C03204000410001
       Shop #: WSC 02391 823 56573
       VCID: 45D7541E75A559B320D-8010
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 46: Central Conv. (J393)       Labels:. 8K0-907-064-46.clb
       Part No SW: 8K0 907 064 DF    HW: 8K0 907 064 DF
       Component: BCM2 1.1      H02 0321  
       Revision: 00002001    Serial number: 0120294911    
       Coding: 0106023A007A000400B0010000000000
       Shop #: WSC 02391 823 56573
       VCID: 77ABEED67FC9FB23621-8022
    
       Subsystem 1 - Part No: 1K0 951 605 C
       Component: LIN BACKUP HO  H03 1301 
    
       Subsystem 2 - Part No SW: 8K0 959 591 A    HW: 8K0 959 591 
       Component: J245 PS037  H06 0041 
    
    2 Faults Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
    01134 - Alarm Horn (H12) 
                014 - Defective
                 Freeze Frame:
                        Fault Status: 01101110
                        Fault Priority: 2
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:37
    
    
    -------------------------------------------------------------------------------
    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: 0203010101
       Shop #: WSC 02391 823 56573
       VCID: 74B1D9DA6EBF903B473-8020
    
    No fault code found.
    
    -------------------------------------------------------------------------------
    Address 52: Door Elect, Pass. (J387)       Labels:. 8K0-959-792.clb
       Part No SW: 8K0 959 792 H    HW: 8K0 959 792 D
       Component: TSG BF        H11 0306  
       Revision:             Serial number: 0000009136003 
       Coding: 011C03204000410001
       Shop #: WSC 02391 823 56573
       VCID: 44D1491A7E9F60BB373-8010
    
    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 0090  
       Revision: 00000003    Serial number: 10000000291566
       Shop #: WSC 00000 000 00000
       VCID: 343119DA2E3FD03B873-8060
    
    1 Fault Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication - MIL ON
                 Freeze Frame:
                        Fault Status: 11100100
                        Fault Priority: 4
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:33
    
                 Freeze Frame:
                        Voltage: 12.90 V
                        Count: 64
                        Speed: 0.0 km/h
                        Hex Value: 0x0273
                        Hex Value: 0x0001
                        Hex Value: 0x1010
    
    
    -------------------------------------------------------------------------------
    Address 56: Radio (J503)       Labels:. 8Tx-035-1xx-56.clb
       Part No SW: 8T1 035 186 R    HW: 8T1 035 186 R
       Component: Con3 Sirius   H03 0351  
       Revision: 00000005    Serial number: AUZ5Z6I1254074
       Coding: 05020000010105004119070000
       Shop #: WSC 02391 823 56573
       VCID: 46D5531248A352AB297-8012
    
       Subsystem 1 - Part No SW: 8T0 919 603 E    HW: 8T0 919 603 E
       Component: Display  
    
    2 Faults Found:
    01314 - Engine Control Module 
                004 - No Signal/Communication
                 Freeze Frame:
                        Fault Status: 01100100
                        Fault Priority: 6
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:38
    
    02635 - Tuner Not Enabled/Activated 
                000 - -
                 Freeze Frame:
                        Fault Status: 01100000
                        Fault Priority: 7
                        Fault Frequency: 1
                        Reset counter: 97
                        Mileage: 237232 km
                        Time Indication: 0
                        Date: 2009.04.28
                        Time: 04:17:42
    
    
    -------------------------------------------------------------------------------
    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: 0000101634578 
       Coding: 010C03204000210001
       Shop #: WSC 02391 823 56573
       VCID: 42DD4F02648B6E8B05F-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: 0000101634575 
       Coding: 010C03204000210001
       Shop #: WSC 02391 823 56573
       VCID: 42DD4F02648B6E8B05F-8016
    
    No fault code found.
    
    End----------(Elapsed Time: 01:22, VBatt start/end: 12.9V/12.9V)-----------

  2. #2
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
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    Did you check all fuses, interrupts or terminal relay and ignition switch yet?

    RTFB the WD and connections needed to fire up ECU and see if you have power and ground where needed?

    The JPPSG has ECU base pin locations to check or build bench harness.

    https://forums.ross-tech.com/showthr...uot-JPPSG-quot


    PINS

    https://forums.ross-tech.com/showthr...l=1#post184500

    Example.



    Did you know car still has useful life warranty?


    Emission standard 7GB Emission standard ULEV 2


    Model Audi A4 2,0
    A4
    Date of production 07.08.2009
    Model year 2010
    Sales type 8K256H
    Engine Code CAEB
    Transmission Code LKW


    Sure makes you wonder in the cross.....?

    https://forums.ross-tech.com/showthr...-Hard-No-Start


    PART NUMBER DESCRIPTION REMARK MODEL
    8K2 907 115 AA Control unit for petrol engine CAEB
    Vehicle intelligent genuine part.
    Order only with additional instructions.
    Recommended part number based on the vehicle data to use as replacement




    VIN specific part number



    PART NUMBER DESCRIPTION
    8K2 907 115 AL Control unit for petrol engine

    Last edited by Jack@European_Parts; 05-01-2020 at 03:27 PM.
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

  3. Likes DrPeter, Uwe liked this post
  4. #3
    Ross-Tech Employee DrPeter's Avatar
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    Hello,

    I am trying to avoid taking it to the dealership as it gets very expensive. So, any help will be greatly appreciative.
    That could get expensive! At least you have the right scan tool .

    Do you have any Factory Repair Manuals / Wiring Diagrams? They are a must when trying to diagnose these vehicles.
    Official Factory Repair Information

    Based on the VIN I see this vehicle has a 2.0L gasoline engine [CAEB]. The ECM (J623) needs good powers, grounds and communication connections to talk with VCDS and other controllers. If the ECM is missing any of these it could be off-line and have a status of "Cannot be reached".


    You will want to make sure you have powers and grounds at the following pins on the ECM's 94pin connector (T94)
    Key on power = T94 pin 87
    Battery power = T94 pins 3, 5, 6
    Ground = T94 pins 1, 2, 4 (#12 Ground connection in engine compartment, left)

    The ECM (J623) communicates via the Powertrain CAN-Bus via the J533-Data bus on board diagnostic interface.
    CAN-Bus High = T94 pin 68 (about 1.5 to 3.5V)
    CAN-Bus Low = T94 pin 67 (about 1.5 to 3.5V)
    ----------------------------------------------
    Total voltage of CAN High and Low with a multi-meter is ~ 5V

    We have two Ross-Tech videos that can help you with reading wiring diagrams.



    Hope this helps,

    drpeter


    edit -- Jack beat me to it

  5. #4
    Verified VCDS User
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    Thank you for the info. I will take time to learn what you had provided. I'm overwhelmed with the technical jargon. And, no I don't have any factory repair info.

  6. #5
    Verified VCDS User
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    Thanks for the quick response and info!... all very technical for me. Might have to take it to the Audi dealer

  7. #6
    Verified VCDS User
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    Hi Just_learning,
    "I am trying to avoid taking it to the dealership as it gets very expensive", more expensive than setting the car on fire? In my experience well intentioned amateurs can do a lot of damage and after buying unnecessary parts, tools they might use once and the technical information, have paid more than a visit to a professional would cost.
    Regards HMC

  8. Likes Jack@European_Parts liked this post
  9. #7
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
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    The spice of life is just learning the hard way!
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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  11. #8
    Verified VCDS User
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    Apr 2020
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    USA
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    HMC...You're right! It's an older car that doesn't worth much so I tried to fix it and learning along the way. For example, I was able to replace the front and rear struts, front pads/rotors and rear pads (Audi store costs, $1200 vs. my $250), mechanical vacuum pump (Audi, $721 vs. my reseal gasket, $35), water pump (My $57), door and window actuators (My costs, $60), serpentine belt (My cost, $15), the rear defogger (Dealer, $1400 vs. my $0), and recently the starter wiring harness replacement (My cost, $55). So, thanks to Youtube as I was able to complete these myself, except for electrical and electronics which are more technical than I could handle for now.

    Anyway, the car ran fine until I accidentally ground the starter wire harness, instead of hooking it up to the rear of the alternator, which caused a small fire. Since then, my car wouldn't start even with the new battery (See tag for autoscan). And, based on Jack and Dr.Peter's info, I had noticed that the negative cable to the battery was slightly burned at the contact, maybe back grounding. The contact to the battery was loose even I had tighten it completely. It was attached to the battery monitoring control module. But, how can I check to see if it's still good or bad?

    I will continue to learn from what Jack and Dr.Peter had provided, and hopefully, succeed! If not, will have to take it to the Audi store

    Thanks,
    Just

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  13. #9
    Verified VCDS User
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    Jul 2014
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    Have you checked for power at the ECM as described by Dr Peter? Have you load tested the earth (ground) negative leads? I think you are saying the car does not even crank so you have probably lost a main feed somewhere. Double check All the fuses, take an image of the fusebox before removing any, you wouldn't be the first or thelast to put a fuse back in the wrong place.
    Regards HMC

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  15. #10
    NostraJackAss Jack@European_Parts's Avatar
    Join Date
    Jan 2014
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    1001 State Route 17K Montgomery New York 12549
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    Load lights don't take much skill to watch illumination when everything is unplugged and isolated huh?
    Two minutes could save thousands!
    European Parts Emporium/Performance / Immobilizer Solutions EPE
    Certified Master Trained NY/BAR/BAD 7076062/ASE/SAE/NASTF Legal Factory Authorized/Licensed GeKo/FaZit # 403738
    Specializing in Custom Services IE: "welding-fabrication" / EPA-SMOG Update or Pass-Thru-Programming / Data Transfer / Immobilizers & OEM Quality Parts
    Above Magic! No Written record, AUTO-SCAN or Appointment = NO HELP!
    www.FixMyEuro.com <<<<<CLICK HERE! or vwemporium@aol.com ( JPPSG & Unverified members need not PM me & Please don't email or call facility for free tech support...use the forum )
    Getting you CONTROL again of your property - TAKE IT! In Conjunction with.........

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