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BMW Coding and Programming
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  #1  
Old 03-21-2016, 08:56 AM
clocKwize clocKwize is offline
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Weird KAFAS module issues?

Hey,

My Speed Limit Info has stopped working and upon taking a look at the errors stored, there is one for KAFAS which looks like the likely cause

800A23 - KAFAS: control unit, vehicle identification number does not match vehicle

When I took a look at KAFAS in E-Sys to see if there was anything odd with it, I noticed that comparing actual/target (for the same i-step) is different.



Identity Check is false, when it is expected to be true (this sounds like it could be related to VIN mismatch)

Also, CAFD is missing - This seems very odd? I can't get to the FDL etc because its just not in the list when I read the SVT.

Anyone have any idea whats going on? Seems to me like its some how been corrupted.

I'm currently looking in to re-flashing KAFAS(and therefore ZGW) but I thought I'd ask for advice before I tried that (because, slightly scary).

Cheers

Last edited by clocKwize; 03-21-2016 at 08:58 AM. Reason: Adding image
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  #2  
Old 03-21-2016, 10:31 PM
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shawnsheridan shawnsheridan is online now
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You have the VIN problem at moment due to missing CAFD. You must Inject CAFD into ECU and VO Code it.

Connect => Read FA (VO) => Activate FA (VO) => Read SVT (VCM) => Left-Click on KAFAS => Click on "Detect CAF for SWE" => Select the CAFD from latest I-Level shown => Select OK => Right-Click on KAFAS (the ECU itself not the underlying CAFD) => Select CODE.
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  #3  
Old 03-22-2016, 05:04 AM
clocKwize clocKwize is offline
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Quote:
Originally Posted by shawnsheridan View Post
You have the VIN problem at moment due to missing CAFD. You must Inject CAFD into ECU and VO Code it.

Connect => Read FA (VO) => Activate FA (VO) => Read SVT (VCM) => Left-Click on KAFAS => Click on "Detect CAF for SWE" => Select the CAFD from latest I-Level shown => Select OK => Right-Click on KAFAS (the ECU itself not the underlying CAFD) => Select CODE.
Oh great, thanks for the info! I'll give this a try tonight. I wasn't aware I was able to do this.

Any idea how it could have got in to this state?
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  #4  
Old 03-22-2016, 05:05 AM
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shawnsheridan shawnsheridan is online now
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Quote:
Originally Posted by clocKwize View Post
Oh great, thanks for the info! I'll give this a try tonight. I wasn't aware I was able to do this.

Any idea how it could have got in to this state?
Normally it is due to power interruption during coding of ECU.
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- 2011 535i M-Sport (Born 10/10) - AW/BLK/DW - /ZMP (w/ARS, EDC, DHP, & AD) /ZPP /ZP2 (w/ZPS & ZPT) /ZCV (w/SCAD) /6FL /6VC
- Mods - M5 343M 20" Forged Wheels / 6WB MFID / 2TB SAT / 4U1 Ceramic / 6NR Apps / PDV 5k Fogs / Rear Fogs / Euro Tail Lights / Cyba Quad Tips
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  #5  
Old 03-22-2016, 05:08 AM
clocKwize clocKwize is offline
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Quote:
Originally Posted by shawnsheridan View Post
Normally it is due to power interruption during coding of ECU.

I see, thats strange - I've never coded that module before. I've played with a few things on KOMBI, etc but not KAFAS.

Maybe its time to connect to an external power source :\
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  #6  
Old 03-22-2016, 05:09 AM
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shawnsheridan shawnsheridan is online now
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Quote:
Originally Posted by clocKwize View Post
I see, thats strange - I've never coded that module before. I've played with a few things on KOMBI, etc but not KAFAS.

Maybe its time to connect to an external power source :\
Just run the motor.
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- 2011 535i M-Sport (Born 10/10) - AW/BLK/DW - /ZMP (w/ARS, EDC, DHP, & AD) /ZPP /ZP2 (w/ZPS & ZPT) /ZCV (w/SCAD) /6FL /6VC
- Mods - M5 343M 20" Forged Wheels / 6WB MFID / 2TB SAT / 4U1 Ceramic / 6NR Apps / PDV 5k Fogs / Rear Fogs / Euro Tail Lights / Cyba Quad Tips
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  #7  
Old 03-22-2016, 05:12 AM
clocKwize clocKwize is offline
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Quote:
Originally Posted by shawnsheridan View Post
Just run the motor.
I did do that when I coded before. I guess I really should connect external power if I'm going to flash any ECUs though right..
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  #8  
Old 03-22-2016, 05:14 AM
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shawnsheridan shawnsheridan is online now
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Quote:
Originally Posted by clocKwize View Post
I did do that when I coded before. I guess I really should connect external power if I'm going to flash any ECUs though right..
Could be from loose ENET Cable as well.
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- 2011 535i M-Sport (Born 10/10) - AW/BLK/DW - /ZMP (w/ARS, EDC, DHP, & AD) /ZPP /ZP2 (w/ZPS & ZPT) /ZCV (w/SCAD) /6FL /6VC
- Mods - M5 343M 20" Forged Wheels / 6WB MFID / 2TB SAT / 4U1 Ceramic / 6NR Apps / PDV 5k Fogs / Rear Fogs / Euro Tail Lights / Cyba Quad Tips
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  #9  
Old 03-22-2016, 05:19 AM
clocKwize clocKwize is offline
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Quote:
Originally Posted by shawnsheridan View Post
Could be from loose ENET Cable as well.
Sure, I'll have a play tonight. Thanks for replies
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  #10  
Old 03-22-2016, 03:39 PM
clocKwize clocKwize is offline
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This worked perfect. Thanks!
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  #11  
Old 03-22-2016, 04:02 PM
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shawnsheridan shawnsheridan is online now
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Quote:
Originally Posted by clocKwize View Post
This worked perfect. Thanks!
__________________

- 2011 535i M-Sport (Born 10/10) - AW/BLK/DW - /ZMP (w/ARS, EDC, DHP, & AD) /ZPP /ZP2 (w/ZPS & ZPT) /ZCV (w/SCAD) /6FL /6VC
- Mods - M5 343M 20" Forged Wheels / 6WB MFID / 2TB SAT / 4U1 Ceramic / 6NR Apps / PDV 5k Fogs / Rear Fogs / Euro Tail Lights / Cyba Quad Tips
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