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Discussion Starter #1 (Edited)
This is an original guide by myself the creator of it any other versions of this guide are hijacks or stolen versions of it...

INPA is factory BMW diagnostics software that connects to all the systems and modules on BMW cars not just engine like generic scanners, it reads all BMW trouble codes and gives live diagnostics and data and GUI pages and test functions...


Ok this is an idiots guide for INPA! it is "NOT" for ppl to say oooh!! its cheaper doin it this way or its piss easy and cheaper using a modded vagcom cable, or a USB interface etc etc!! its just a guide for the simplist and easiest way to hook your car up and diagnose with INPA for the beginner..

1.the absolute simplist way to connect to your OBD2 compliant car or ADS car is via the way it was designed for in the beginning,,and that is via a serial port connection with a INPA compatible serial interface/lead..

2.you can connect to your OBD2 car soley in ADS mode you do not need OBD mode (the cutdown INPA version 63mb on the net is an ADS only version and it is all you need for either type of system if you are using a serial interface and connection)

3.you need an INPA compatible double kkline serial interface cable..

4. an older type cheapo laptop or any laptop with a serial port preferably with XP loaded.

5.a copy of INPA/EDIABAS software cutdown version @ 63MB works fine on OBD2 or ADS cars.

6.if your car is pre OBD2 it will be either a crossover car which has both 20 pin round socket under the bonnet and 16 pin OBD2 in the cabin by your right knee or soley the 20 pin round under the bonnet (ADS socket)

7.if you have soley the 20 pin round socket under the bonnet and or pin 15 is populated? this is a fully ADS car not OBD2..

8.an ADS car you need an ADS adaptor interface or an ADS/OBD switchbox to access all the cars modules
9.you cannot connect to all modules on an ADS car with the cheap 20 pin (ADS) round to 16 pin OBD2 adaptors like that are sold on Ebay..

10.USB interfaces can be and will be more problematic for the INPA beginner plus USB interfaces will NOT connect with INPA set in ADS mode…

11.you can acess all modules, fault code read with INPA, including ABS,airbags,engine ECU,parking sensors and do live diagnostics via a GUI screen and reset codes, airbags and adaptions etc etc

12.No serial port on your laptop? PCMCIA to serial port adaptors or USB to serial port adaptors can be made to work, but again can be seriously problematic for an INPA beginner…

So to sum up if your car is a pre OBD2 car and has a 20 pin round socket under the bonnet with pin 15 present you will need:
A cheap laptop with a serial port and XP loaded.
A basic cutdown version of INPA in ADS mode 63MB in size or a normal version set to ADS
An ADS serial interface or an ADS/OBD serial switchbox interface like below…if you want some basic engine connection and function and a few other modules then the 20 round adpator will suffice most find this sufficient but as mentioned you CANNOT connect to everything with this cheaper configuration ...

ADS switchbox




If your car is OBD2 you will need..
A cheap laptop with serial port and XP loaded
A basic cutdown version of INPA in ADS mode
An OBD2 BMW INPA compatible serial interface double Kline type..like below.(.NOTE the 20 pin round ADS adaptor in the kit may connect to some modules but not all of them on ADS cars, it is “NOT” a full ADS interface!!)

serial OBD2 kit with 20 pin none full ADS round adaptor

kit.jpg


There are other ways to connect and other versions of INPA with different interface combinations etc etc ..this guide is not for that its just an idiots guide for a basic DIY’er whose just found out about INPA and is the easiset and most basic way to get started

modified VAGCOM connection guide...

http://www.bimmerforums.co.uk/forum/f99/idiots-guide-bmw-inpa-installation-modded-usb-vagcom-interface-winxp-t102843/

Feel free to comment if I have ommitted anything or you have something to add…i shall add to it or edit if i i remember anything more of use...

a small update: if you are looking for cheaper robust laptops for your INPA setup? then some older IBM's fit the bill, but IBM laptops stopped having serial ports at the T30 model, models after the T30 still have the architecture for a serial port internally, but no external serial port, but if you connect it to a suitable IBM port replicator dock (very cheap these days on Ebay) you then have a fully functioning serial port on the dock ready for INPA...

an example: i now have a second setup of INPA fully functioning on an IBM T42 which is docked on a port replicator like below..

 

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Right, so I have two cars 20 pin socket only and pin 15 populated on both.

I have the pre-requisite battered laptop with COM port. However, from the above it sounds like I may as well get a peake research tool if the cheap interfaces don't read all?
 

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Right, so I have two cars 20 pin socket only and pin 15 populated on both.

I have the pre-requisite battered laptop with COM port. However, from the above it sounds like I may as well get a peake research tool if the cheap interfaces don't read all?
AFAIK peake tools only connect to the engine DME and read BMW engine fault codes so you are no better off...i think even the cheapo 20 round to 16 pin adaptors will do that..
 

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I suppose the confusing stuff for me is:
  • The 16 pin ODB2 sockets are not OBD2 (For the old stuff. In a way like the vauxhall ALDL I suppose)
  • If they are not ODB2 how I am supposed to choose a 16 pin to 20 pin adapter
  • If they were like the ALDL I would just go and get two transistors and be done with it
  • Oh and finally I do have an ELM ODB2 interface somweher, which appears to, of course, be completely inappropriate to connect with a 16 pin to 20 pin adapter
 

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OK, so would this:

Item no 170648230442 Vag Com KKL from China in theory work? There are very few serial ones out there.

Then add one of those cheap 16 to 20 adapters and open it up and fit a switch to be able to flip over to the other K line pin in the car and done?
 

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Nice guide Doggy, but I still prefer over ya head talk like joylove's guide :rofl

me too..i understand most of what he's saying but im here for the idiot and the INPA virgin of the forum...

thanx to a most kind sludger owning forum superstar im now the proud owner of a full software suite of SSS progman and DIS hacked for windows and an OBD INPA interface, so me is gonna have some prodding about fun with that shortly if i can keep my temper in check...:hihi

got yet another IBM T42 ready to go with a clean install hopefully..:thumbsup
 

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me too..i understand most of what he's saying but im here for the idiot and the INPA virgin of the forum...

thanx to a most kind sludger owning forum superstar im now the proud owner of a full software suite of SSS progman and DIS hacked for windows and an OBD INPA interface, so me is gonna have some prodding about fun with that shortly if i can keep my temper in check...:hihi

got yet another IBM T42 ready to go with a clean install hopefully..:thumbsup
Let us know when your car doesn't start when you are done prodding around. Will see if we can sort you out :rofl
 

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Let us know when your car doesn't start when you are done prodding around. Will see if we can sort you out :rofl
i dunno if im actually brave enough to get to that stage, perhaps a tip toe couple of steps just to see if we have lift off or not:hihi

bad enough when i managed to reset the throttle adaptions in INPA while it was running by accident, i nearly dropped 21b of king edwards in me skiddies...
 

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DIS is easier to use, it leads you through test plans etc. Inpa is what DIS calls expert mode where you just read the codes of the module your concerned with.

I've said it many times, but GT1 is useful but it's slow and I prefer Inpa 99% of the time. Progman holds no interest for me but if you do use it I'd look at maintaining the battery voltage so you don't brick your ecu.

Ian
 

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im here for the idiot and the INPA virgin of the forum...
Actuallly this is really useful for a full range of people. I could, quite literally, build the interface.

The trouble is there is that much confusion. For example a lot of referring to anything with the 16 pin "d shape" connector as ODB2 even though it pre-dates it.

Think is, quite often you just need a few key facts. Becoming an expert in interfaces just takes up time that would be better spent just reading off codes and fixing the car, and that's the minimum, at worst could cost a few quid on things that don't work.

So anyway, cheers for the thread
 

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Discussion Starter #13
basically its aimed at the range of cars realistically that we are most concerned with these days ( mid 90's till present), its either full ADS or crossover ADS to OBD2 cars,or full OBD2 compliant cars, depending on the country of origin these can vary some at what point which had what system, till i think 2007 when some started to go over to DCAN in the UK at least..
 

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Right, so I have two cars 20 pin socket only and pin 15 populated on both.

I have the pre-requisite battered laptop with COM port. However, from the above it sounds like I may as well get a peake research tool if the cheap interfaces don't read all?
AFAIK peake tools only connect to the engine DME and read BMW engine fault codes so you are no better off...i think even the cheapo 20 round to 16 pin adaptors will do that..
I think the trick here is I'm not obsessed with getting access to all modules.

If I can use a VAG KKL on a 9pin COM port with a 16 to 20 pin adapter and get the engine alone for the £12 - £15 that would be fine and perfectly good value for money. Any other modules would be a bonus.
 

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I think the trick here is I'm not obsessed with getting access to all modules.

If I can use a VAG KKL on a 9pin COM port with a 16 to 20 pin adapter and get the engine alone for the £12 - £15 that would be fine and perfectly good value for money. Any other modules would be a bonus.
i maybe wrong here but if your car is 20 pin ADS you would have to connect with your adaptor interface cable in ADS mode in INPA, and USB VAgcom ect ect interfaces will not connect in ADS mode, so you will still need a standard serial INPA interface and adaptor...

USB interfaces you connect with INPA in OBD mode but your connecting via the ADS socket not the 16 pin OBD2 in the cabin..
 

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i maybe wrong here but if your car is 20 pin ADS you would have to connect with your adaptor interface cable in ADS mode in INPA, and USB VAgcom ect ect interfaces will not connect in ADS mode, so you will still need a standard serial INPA interface and adaptor...
Yeah, the earlier E36's need the serial ADS interfaces. The later E36's you can use the KKL lead in obd mode to the 20 pin adapter.

Ian
 

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Yeah, the earlier E36's need the serial ADS interfaces. The later E36's you can use the KKL lead in obd mode to the 20 pin adapter.

Ian
its where all the confusion starts crossover cars, fully obd2 compliant against not being fully compliant and the owner deciding what he wants access to in the first place the full monty or the basics? this all determines what he should buy or source to get started etc...
 

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As your running LPG there will be error codes! Not that it's a problem.Ian
Really?

The car doesn't know it is running LPG, it disconnects the injectors and the lambdas are connected into the LPG system
 

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I think the trick here is I'm not obsessed with getting access to all modules.

If I can use a VAG KKL on a 9pin COM port with a 16 to 20 pin adapter and get the engine alone for the £12 - £15 that would be fine and perfectly good value for money. Any other modules would be a bonus.
i maybe wrong here but if your car is 20 pin ADS you would have to connect with your adaptor interface cable in ADS mode in INPA, and USB VAgcom ect ect interfaces will not connect in ADS mode, so you will still need a standard serial INPA interface and adaptor...

USB interfaces you connect with INPA in OBD mode but your connecting via the ADS socket not the 16 pin OBD2 in the cabin..
It's a proper 9 pin COM, worst case a guy I know with a passat can have it lol

its where all the confusion starts crossover cars, fully obd2 compliant against not being fully compliant and the owner deciding what he wants access to in the first place the full monty or the basics? this all determines what he should buy or source to get started etc...
Decided what I want access to, the DME

People always fuzz the issue by expanding it and mentioning other modules

You won't be able to talk to your 325, your 328 would probably work. There was something funny with the early 328's, the US cars which did get full OBD2 compatability got it in 1996.

As your running LPG there will be error codes! Not that it's a problem.

Ian
328 is ODB1
 
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