dont you just wire it into ecu? from the vr6 brown to earth, red to +12v (bat) and onto grey, and yellow wires from ecu
yes you do, the jumper block is just a way to connect the 2 together. the reason vw use the jumper block is there is more than 1 item that needs to be connected to the vag com plug (abs, airbags, ecu plus loads more on later models) There are only 2 diagnostics wires into the plug, so the jumper block allows all these extra things to be plugged in.
Bummer, I was hoping for a clue as to why its running rich and slow, limp mode? Here are a couple of screen shots: I have no idea what any of it means. Other than checking fault codes and clearing them i'm clueless.
Cool glad to hear it worked Quite a bit of info to be had from ross tech common diagnostic procedures site, also a link there to the rosstech wiki which has info on most of the fault codes.
you get live data by going into the engine module and then into measuring blocks. I think this function may only be available after a certain year. It does not work on my 94 Corrado using the 2x2 adaptor
I plugged all mine in at the weekend and it didn't work... I have the loom pretty much in tact for the port and went by the wirin diagram. Mine is just lime yours in the pic jonny. Does the black plug need to be plugged in as I'm sure I already hav somthing in that port. All I was doing is the k-line from the ecu into the black connector block thing and the. My port plugs into that too. A random live and earth and my vag-com lead lights up. It cannot find the engine controller though. Does my bag-com lead need to be an obd1 or are they backwards compatible? Cheers Mat
obd1 and 2 are the same on the mk3 ecus, just a case of making sure the ignition is on and the diagnostics wires are plugged in correctly
Welcome back Jonny! I took my diagnostics loom apart and found out they had spliced it into plug "L" for some reason. It had a mix of sunroof plugs and stuff on it. Taken it right back to just the live, Earth and Grey (K-Line) wire now and will test it at the weekend
Had a spare 5 mins today so connected my loom up. (Ive run out of earths!) Got it all working and no faults at all to be seen!
Guess I'll rather hijack this thread than open a new one. I'm doing an ABF swap, and so far I have spliced the immo wiring from rest of the loom (it's form a 96 Passat, hence the color difference, I think) It looks like this: As I understand: - the brown cable on the lower right is ground But this I don't understand: - the black cable (n. 5) goes to pin 43 on the ECU (the green wire)? - the 16 pin connector (n. 3) is diagnostic port? - how do I wire up connectors 1, 2 and 4? I dont have the junction block shown above... - what about the red and brown wire on 16 pin connector? I know it looks a bit stupid, but I just cant figure it out I hope someone could help me out. Cheers
its a diagnostics passthru, ecu diagnostics wire plugs into the immob box first, so immob box and ecu can communicate. then there is a wire from immob box to tv14 junction block, which is how vag-com can read cdes from the ecu and immob box
It is the K line that, which has a std position on any J1969 coporate diagnostic contector ( called by the street as "OBD2" jack). This typical std found on any VW/Audi vehicle post 1994. The K line daisy chains with climate control, ABS or any other controller that speaks in KWP 1281 or 2000 protocols. On this type of connector you can find the grey/white to be on pin 7 of the J 1962. You would also require pin 16 to have +12v and a vehicle gnd on in pin 4. Typical wire pin out of a J1969 connector. Pin 43 of the PCM requires a checksum from the immobiliser to authorise ECU operation. It shares this data on the same K line as the ECU diagnostics.
TOLEDO ABF - DIAGNOSTIC INTERFACE - TV14 - Terminal for self-diagnosis TOLEDO 16V ABF - To add, the wiring on our ABF SEAT Toledeo - Diag Signal - LIME or LIGHT GREEN on pin 43. Ive hooked up VCDS Lite briefly and with a LOT of fooling around it did detect both ENGINE and IMMOB in the AUTO SCAN section and it dumped text that it was recognized. At one point when I thought I'd found the ECU and all was good, checked ENGINE and there were no faults found. Hard to believe really... so will revisit the ECU with VCDS and get some screen shots etc. I had to stop, a teenager complaining that he expected Graphical RPM Tachometers, bling and gauges, it was cold, I was tired too, went googling for other Diagnostic systems... VCDS is all there is right?
