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Thread: Erwin Diagnostic Information?

  1. #1
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    Erwin Diagnostic Information?

    There is frequent mention of referring to factory information. RFTM

    After obtaining over 200 documents from the Erwin VW site, for my 2008 Jetta 2.5, I notice there is virtually no meaningful diagnostic information aside from multiple DTC "definition" tables. The definitions are just the vague OBD2 titles but without much info on the parameters that set them (a few mention voltage above or below ___) or the guided fault finding or other diagnostic. A few emission issues may be generally mentioned under Strategies.

    Likewise I was hoping I would see measuring block/field references, basic setting/adaptation info, etc. Once in a while a document randomly has a few pieces of info like that.

    Am I missing a critical document or looking in the wrong place?

    Code:
    D3E8018BB5C-DTC_List
    D3E8018BB75-How_to_Set_Readiness_Code___2007_-_2008_All_Gas_Models
    D3E8018BBA7-Bosch_Motronic_ME_7__ME_7_1__ME_7_1_1__ME_7_5__System_Strategy
    D3E8018BBA8-Bosch_Motronic_ME_9_1
    D3E8045F6AB-1998-2012_DTC_List
    D3E80156A14-Generic_Scan_Tool
    D3E802072D0-Electrical_Equipment_General_Information
    D4B802F4716-Automotive_Electrical_Signals_Glossary
    E0000000005-VW_New_OBD_II_drive_cycle_procedure
    E0000000012-Volkswagen_Engine_&_transmission_Fault_Codes
    E0000000015-Volkswagen_G_Cal
    E0000000026-2005-2010_VW_Gas_ECM_Calibration_IDs_and_CVNS
    MEX5R005021-Wiring_Diagrams_and_Component_Locations
    D3E801A96C3-Volkswagen_Engine_and_Transmission_Codes
    D3E8018BB2A-Immobilizer_Service_Requirements_-_Guided_Fault_Finding
    D3E8018BB2D-Immobilizer_Service_Requirements_-_Vehicle_Keys
    D3E8018BB2F-Immobilizer_Theory
    
    
    D3E802F8712-Jetta_Volk-L_2005__2010_(05_27_2010)
    D3E8001EAAC-6-Speed_Automatic_Transmission_09G
    D3E8001FB28-Engine_Mechanical__Fuel_Injection_and_Ignition
    D3E8008A8F3-Body_Repair__Body_Collision_Repair
    D3E8012ED6C-Refrigerant_R134a_Servicing
    D3E8019FCDC-Suspension__Wheels__Steering
    D3E8020F90D-Communication
    D3E80001E10-Body_Repairs
    D3E80020F2A-Brake_System
    D3E80081B1E-Body_Interior
    D3E80213E07-Heating__Ventilation_and_Air_Conditioning
    D3E80415A00-2007-2010_Jetta_&_Jetta_SportWagen
    D3E80023150-Electrical_Equipment
    D3E80064891-Body_Exterior

  2. #2
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    Quote Originally Posted by Joes_Jetta View Post
    Likewise I was hoping I would see measuring block/field references, basic setting/adaptation info, etc. Once in a while a document randomly has a few pieces of info like that.

    Am I missing a critical document or looking in the wrong place?
    For new VW models/platforms after a certain point, let's say in the early 2000s, the factory documentation started to be real bad about referring you to the factory diagnostic tool for this sort of thing instead of actually documenting MVB and basic setting info. There is, however, still some good info for the OBD2 side.
    Silence gives consent.

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    Wiring Diagram Index

    Now that I have these documents, I am trying to create summaries and search indexes. Mostly for TSB, TT, and SSP.

    I decided to start leafing through the 2,500pg wiring diagram book. I then realized there seems to be no index or reference from service instruction books. So if I wanted to find the wiring diagram for a "left tail light" I have to do a manual [ctrl][f] search and pray that my search term is spot on.

    Is this typical? Or is there usually some type of reference index?

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    If you use the VIN Specific information there is an interactive menu that is a lot better at leading you straight to the place to need because every blob in the diagram is clickable too.

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    If you register yourself with Erwin, then you can pay for a 1 hour licence, you can save lots of information and save over the 1 hour period.

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    Erwin 1hr is not available in the US. None the less, I believe I have already obtained all available US Erwin information for my make/model/year (200 files)

    That said, it is extremely lacking for a majority of things I would use. Much like a haynes/chiltons but possibly less info. I was kind of hoping the diagnostic sections would include information on measuring block/adaptations, mechanical gauge readings, multimeter specs, diagnostic codes not related to engine/obd2 etc, but it is sparse. As mentioned, if I want to see a wiring diagram, I open up a separate 2,500 page pdf and use [ctrl]+[f] to manually search for the term I am looking for. This process can take an extremely long time, especially if volkswagon calls a component or circuit something different than the rest of the world. There is definitely no link clicking between documents or within the wiring diagram document (excluding the component locator)

    So I am checking to see if I have missing documents or there is perhaps a pdf reader/software work around that people are using.

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  11. #7
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by Joes_Jetta View Post
    Erwin 1hr is not available in the US.
    The minimum is one day, right?

    -Uwe-
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    I believe it is 1 day month or year. At $35, the information for a car is actually priced better than almost all other single make manuals (ie a bentley manual for this make is $130)

    These ROW users might be on to something, perhaps ROW erwin can fill in some of the missing blanks, even though NAR is usually cited as having more info.

    This forum and the Ross-tech site both have tons more diagnostic information but refer users to the erwin manuals, then Erwin refers you to various VAS diagnostic machines.

    An example:
    Recent auto scan displays a few ignition switch codes. There are 4 "books" on DTCs. So you manually scan all for books for the codes in question, just to realize non SAE/OBD2 codes aren't really covered. The vcds already told you more than VW will, by giving the code a title.
    So you go to Electrical Equip Repair book, take a stab in the dark at what component you think could be bad based on your non existent knowledge. which also mentions the owners manual and wiring diagram book. Consult wiring diagram via a manual search for "ignition switch" to confirm your suspicion that there is virtually no testable wire within this circuit. Go back to equipment repair, and read diagnostics. It tells you to just do a guided diagnostic. You take a stab in the dark to replace it, there is wonderful basic repair (nuts and bolts) info. It then reminds you to code the module, with guided fault finding but leaves it at that.

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  14. #9
    Benevolent Dictator Uwe's Avatar
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    Yes, sadly VAG has buried most of the DTC trouble-shooting (with the exception of generic OBD codes) in the scripts and "test plans" in their own diagnostic software. They started doing this about a 15 years ago, and it's gotten worse ever since.

    That said, erWin is still invaluable for wiring diagrams, component locations, TSBs, as well as mechanical procedures.

    -Uwe-
    Lock-down of sick people: Quarantine
    Lock-down of healthy people: Tyranny

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