Can I get the code from a J519 - Onboard Supply Control Unit

   #22  

EuroX

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If gateway works on the bench but not in the vehicle you either have a wiring problem or can bus problem possibly.
 
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   #23  

hillburnsh

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If gateway works on the bench but not in the vehicle you either have a wiring problem or can bus problem possibly.
MOST DEFINITELY. Which is why I am leaning towards a bad J519 or a bad pinout of the ECU. Regarding the J519, that is why my only question was how can I hook that up and pull the codes (I bought a replacement just in case). But now I am leaning more towards the ECU being pinned wrong.

Unfortunately, regarding the ECU, Ive repinned it 3 times now. I have the FSM, the Work Shop manual and had alldata. With all 3 of these resources the pinout on the ECU (T94 and T60) all differ from each other.

And even though the workshop manual is VIN specific, its not entirely correct either.

There has to be a way to read inside the ECU and get the pinout internally from the ECU. Meaning, what does the ECU say T94/8 goes too (temp sensor, O2 sensor, J682, etc).....any way to get that?
 
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There has to be a way to read inside the ECU and get the pinout internally from the ECU. Meaning, what does the ECU say T94/8 goes too (temp sensor, O2 sensor, J682, etc).....any way to get that?
The only way we have found is to study the factory wiring diagram for the car that the ECU in question belongs in.

-Uwe-
 
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hillburnsh

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I hear what you're saying and I believe I've done that. However the discrepancies aren't real obvious. For instance:
ECU T94/7 goes to....
FSM manual = O2 sensor #1
WS VIN specific = ECM relay, #86
AllData = had a 3rd (different) destination.

Then as another example, the WS VIN specific manual won't have T94/18 (an example) identified at all. But then the FSM manual gives it as V144. Then AllData will also identify it but says it goes to J782.

This is why I'm lost and why I believe the pin out on the ECU is wrong on some pins. And without knowing what the hell the ECU is actually using which pin locations for, it'll be we get sorted out.

Or if I can somehow decide or reassign the pin locations in the ECU through VCDS or another program.
 
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Dr Sheldon

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MOST DEFINITELY. Which is why I am leaning towards a bad J519 or a bad pinout of the ECU. Regarding the J519, that is why my only question was how can I hook that up and pull the codes (I bought a replacement just in case). But now I am leaning more towards the ECU being pinned wrong.

Unfortunately, regarding the ECU, Ive repinned it 3 times now. I have the FSM, the Work Shop manual and had alldata. With all 3 of these resources the pinout on the ECU (T94 and T60) all differ from each other.

And even though the workshop manual is VIN specific, its not entirely correct either.

There has to be a way to read inside the ECU and get the pinout internally from the ECU. Meaning, what does the ECU say T94/8 goes too (temp sensor, O2 sensor, J682, etc).....any way to get that?
A lot of waffle again - I've given you the factory diagram for the Gateway !! Now go get communication with it - Every other module does not count at this stage !!


Do you think I'm new?! I've done all that and then some!

So I will try what you mentioned , j533 connector, I'll depin all wires except the 5 you memtioned and let you know what happens. - SO YOU DONE NOTHING
Then behave as though you are not new to this


No you haven't done what I asked you to do - Your dreaming about ECM pins

Your strategy will NOT fix this car. You demonstrate poor understanding of how the car communicates with VCDS even poorer listening skills to good logical robust advice !!
 
   #27  

EuroX

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Factory wiring diagram is the only one you should be using, Sumdata is always fucking wrong and its fucking useless more times than not.
 
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   #28  

hillburnsh

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A lot of waffle again - I've given you the factory diagram for the Gateway !! Now go get communication with it - Every other module does not count at this stage !!





Then behave as though you are not new to this


No you haven't done what I asked you to do - Your dreaming about ECM pins

Your strategy will NOT fix this car. You demonstrate poor understanding of how the car communicates with VCDS even poorer listening skills to good logical robust advice !!
Done nothing?!?!! Don't get me fucking started. Do you think because someone asks for help, that it gives you a free pass to be an asshole? I've done exactly what you suggested a couple of times before. I did it to humor you. Because I already knew what message I would get. You know what it was.....the same fucking message I've been saying.
Factory diagram. Give me a fucking break. Maybe you should listen and not be so quick for your 12 year old sarcasm. The FSM manual is NOT specific to the cars options. Most, yes but not all of them. Which is why I paid extra for the WS manual specific to my VIN. So where the FSM says to connect the brown)blue wire for the "auxillary heater" in T94.....should I do it? Even though my car does NOT have the auxiliary heater?
You've given me the factory diagram for what? The J533? Sure hope not, because what you gave me was INCORRECT. Maybe you should listen to people entirely before puking out of your mouth
 
   #29  

EuroX

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I think we need to pump the brakes here. The factory wiring diagram is always correct. Sumdata or anything else I known to have incorrect information in it all the time for as long as I can remember. Factory diagram can be hard to read if your not familiar but gives a accurate break down of what is used in the vehicle or not. If you insist on using something other than the factory wiring diagram then It will be hard to anyone to assist as we can only follow what we know Is accurate information.
 
   #30  

hillburnsh

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I think we need to pump the brakes here. The factory wiring diagram is always correct. Sumdata or anything else I known to have incorrect information in it all the time for as long as I can remember. Factory diagram can be hard to read if your not familiar but gives a accurate break down of what is used in the vehicle or not. If you insist on using something other than the factory wiring diagram then It will be hard to anyone to assist as we can only follow what we know Is accurate information.
I understand what you're saying. Let me give a specific example and I can attach pictures straight out of the fsm.....and it's wrong.

And unfortunately, it's significant. The FSM says my J519 has "52 pin" connectors and the wiring diagram are wired using multiple "52-pin" connectors. Since I do not have that, I had to refer to the WS VIN specific manual which does have my correct J519.

Now that you mention it, maybe it's not possibly my ECU is pinned out wrong. But maybe my J519 is pinned out wrong?
 
   #31  

EuroX

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Please check Pin1 on gateway module for power and pin11 for ground. If you dont have 12vdc on pin1 please check fuses sb 15 or sb24 depending on ebox version.


For J519 I see 2pin, 8pin, 11pin and 16pin connector in the factory wiring diagram.
 
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   #32  

hillburnsh

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Here's something I checked last night that hopefully someone can help out.

It appears a have a voltage drop. With key out, I check voltages at J329 relay.
T2cq/1 - red/wht - has battery voltage
T2cq/2 - blk - has 0v

KEY ON
T2cq/1 - red/wht - drops to 11.5v
T2cq/2 - blk - has 11.5v

**** In turn feeds J682, which now only has 11.5v
 
   #33  

hillburnsh

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Please check Pin1 on gateway module for power and pin11 for ground. If you dont have 12vdc on pin1 please check fuses sb 15 or sb24 depending on ebox version.
K. 1 sec
 
   #34  

hillburnsh

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OK, key OFF J533 Pin 1 has battery voltage. Pin 11 is a good ground

With key ON, J533 Pin 1 drops to 11.5v

With E-box Low, J533, Pin 1 goes to SB15 fuse. fuse is good. HOWEVER, as soon as key "ON", all fuses drop to 11.5v

Is my ignition causing the voltage drop?
 
   #35  

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HOWEVER, as soon as key "ON", all fuses drop to 11.5v

Is my ignition causing the voltage drop?
So the battery is dropping to 11.5V with the ignition on.
 
   #36  

EuroX

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Possible other consumers are coming online pulling battery voltage down a bit is the battery fully charged?
 
   #37  

hillburnsh

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Possible other consumers are coming online pulling battery voltage down a bit is the battery fully charged?
battery is still connected to a "maintainer". Yes, battery voltage is 12.5 (not sure why its low on a maintainer) and when "Key ON", battery drops to 11.5v
 
   #38  

EuroX

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Ok since we don't have and auto scan posted. Is it possible to post one so we can what is and isn't online/talking?
 
   #39  

hillburnsh

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Nothing scans. after 3 attempts of an auto scan, I get the message "function not supported by the gateway".
 
   #40  

hillburnsh

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Ok since we don't have and auto scan posted. Is it possible to post one so we can what is and isn't online/talking.

Additionally, I can try to manually select each control module and still nothing. All attempts time out and say "cant be reached"

But if a posted autoscan is really necessary, let me know how to do it and post it please.
 
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