[x5f152014]

Whats my next step what do u suggest, new headunit? I checked the i-step shipment also by going into Expert>VCM master at bottom and read in the I-Steps section

 

[shawnsheridan]

Whats my next step what do u suggest, new headunit? I checked the i-step shipment also by going into Expert>VCM master at bottom and read in the I-Steps section

Not sure from here. Your pictures did not show the head unit, so I have no idea what it looks like. When you Read ECU, does Kombi and Head Unit appear in ECU List?

 

[x5f152014]

yes both are in the list see the head unit below.

 

[shawnsheridan]

yes both are in the list see the head unit below.

Head Unit looks fine. But this is in Tal Calculating. When you just do a Read ECU, what does it show for BKombi, Kombi, or DKombi?

 

[x5f152014]

here is kombi below

 

[shawnsheridan]

here is kombi below

Looks fine. Not sure where it all went wrong, but you need to do it all over, Read ECU and Calculate svt_soll, and see what KOMBI and Head Unit look like. HWEL must be Black, not Red Blue. If they are not, something is wrong with I-Step Shipment used, or FA.

 

[x5f152014]

hey Shawn so my headunit acually died today so thats why i had all the problems im gonna order a used one but what would be the steps to code that into my car?

 

[shawnsheridan]

hey Shawn so my headunit acually died today so thats why i had all the problems im gonna order a used one but what would be the steps to code that into my car?

If same head Unit hardware, install in car, VO Code it, and wipe Donor FSC codes and load original car VIN matching FSC Codes.

 

[x5f152014]

sorry to ask u probably answered this a million times is there step by step instructions.

 

[shawnsheridan]

sorry to ask u probably answered this a million times is there step by step instructions.

Not specifically.

 

[Hide]

Shawns
please tell me.

in esys option
"Update MSN after TAL execution"
"Update VCM after TAL execution"
It is written in various places when you uncheck the
What is your reason for removing it?
What will happen if you check it?

Should I check it when updating all ECUs by software update?

 

[shawnsheridan]

Shawns
please tell me.

in esys option
"Update MSN after TAL execution"
"Update VCM after TAL execution"
It is written in various places when you uncheck the
What is your reason for removing it?
What will happen if you check it?

Should I check it when updating all ECUs by software update?

No. Leave unchecked. It is best to manually update these things, when you have a known good reason for doing so.

 

[Hide]

shawn
Thank you for your reply

I thought I should check it and automatically update ISTEP after the update.

If possible, please tell me why it is NG.
This is because the reason is not written anywhere even if you search the WEB.

 

[shawnsheridan]

shawn
Thank you for your reply

I thought I should check it and automatically update ISTEP after the update.

If possible, please tell me why it is NG.
This is because the reason is not written anywhere even if you search the WEB.

If you modify FA for whatever reason, and VO Code an ECU, you do not necssarly want that modified FA automatically written to car where it will then become the default FA used for VO Coding all ECU. You should manually control any FA Changes written to car and be damn sure of when it's happening and why it's happening.

 

[Hide]

In case of additional ECU
Is it possible to rewrite ECU internal information only by changing the VCM istep of ESYS?
Doesn't it need to be rewritten?

 

[shawnsheridan]

I have added RDC to my vehicle.
It's a used unit.
Add RDC to FA
I thought it would be better to rewrite the inside of the ECU by updating the software. (probably because the ECU also contains the VIN information)

In case of additional ECU
Is it possible to rewrite ECU internal information only by changing the VCM istep of ESYS?
Doesn't it need to be rewritten?

No. You need to flash RDC ECU.

 

[Hide]

yes
Does that mean I shouldn't check for VCM updates even in that case?

 

[shawnsheridan]

yes
Does that mean I shouldn't check for VCM updates even in that case?

Just flash ECU. Leave VCM alone.

 

[Hide]

OK thanks!

 

[x5f152014]

If same head Unit hardware, install in car, VO Code it, and wipe Donor FSC codes and load original car VIN matching FSC Codes.

ok just received the donor hu and installed it this was easy part like 30min to swap. can you explain how to vo code it, wipe the nbt hu and i need your help to get my fsc codes my vin is 5uxkr0c55e0c25240