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Author Topic: Code out Airbag and ABS  (Read 14774 times)
turboat
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« on: October 07, 2014, 05:22:57 AM »

Ive got a AUQ 1.8T 032HN thats been chopped into another vehicle, sorted out most of the fault codes, but Im stuck with these in the Engine ECU:

2 Faults Found:
17931 - Crash Signal from Airbag Controller
            P1523 - 35-00 - Implausible Signal
18057 - Powertrain Data Bus
            P1649 - 35-00 - Missing Message from ABS Controller


The cause of the issue is obvious, I dont have ABS or Airbags, but it would be nice to code these out, the current softcoding is 11510 - I cant find a coding table for this ecu, before I trial and error, does anyone have any info on this?
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Tshirt2k
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« Reply #1 on: October 07, 2014, 06:50:28 AM »

Might be worth looking here.

http://nefariousmotorsports.com/forum/index.php?topic=567.msg4492#msg4492
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turboat
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« Reply #2 on: October 07, 2014, 07:00:34 AM »

Cheers, thats certainly an option, but I would prefer to code them out, rather than editing the error classes so they dont get thrown.
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Tshirt2k
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« Reply #3 on: October 08, 2014, 03:26:38 PM »

If you read funktionsrahmen. I think you can use cw_can_r.
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ddillenger
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« Reply #4 on: October 08, 2014, 05:55:16 PM »

CW_CAN_R is useful for the missing message, but the other one, I'm not sure about. You can certainly error class it, but there is likely a better way.
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Tshirt2k
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« Reply #5 on: October 09, 2014, 01:35:30 AM »

Regarding CW_CAN_R There are more words R_1, R_2 etc. On the file I was looking at (06A906032HN 0002)they all had the same data in 0x00AC which I have worked out what it means. But there was nothing to say what each of the other locations do. Do they all do the same thing?
« Last Edit: October 09, 2014, 01:50:34 AM by Tshirt2k » Logged
carsey
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« Reply #6 on: October 09, 2014, 06:18:08 AM »

I get these aswell.   Would be nice to find a way to get rid of them.   Got them coded out from the cluster via the CAN module
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ddillenger
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« Reply #7 on: October 09, 2014, 01:19:56 PM »

The additional variants are just that.

For variant coding.

You can see which one is used for which coding scheme if you look at the bits and how they're set.
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tjwasiak
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« Reply #8 on: June 15, 2015, 01:20:15 PM »

Any other solution for 17931 DTC? I am sure I located all CW_CAN_R variants correctly as 18057 is gone - all 4 changed from 0x00AC to 0x0020.
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ddillenger
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« Reply #9 on: June 15, 2015, 01:24:41 PM »

CWCS

lol
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tjwasiak
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« Reply #10 on: June 15, 2015, 01:56:45 PM »

Found it already but thanks for the answer.
If I understand correctly funktionsrahmen we should not clear airbag related CW_CAN_R bit if CWCS is set to 4 or 8.
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BlackT
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« Reply #11 on: February 18, 2019, 12:50:18 PM »

Please i need help to code out cluster,ABS and airbag.
On 2.7T ECU 4B0 907 551 M i do it with no problem, i compare hex to M-box. Find the CW_CAN_R, set it to zero and it is working.
But i canon't find CW_CAN_R on my 1.8T ECU  Undecided
SoftCod:11001

I will appreciate any help, I read all topic that search can provide, but still i can't get it how to find CW_CAN_R in 1.8T ECU

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BlackT
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« Reply #12 on: February 26, 2019, 12:04:57 PM »

Anybody? Does anybody can give me some trace, where to start searching?
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BlackT
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« Reply #13 on: March 04, 2019, 01:12:30 AM »

 4B0 906 018 CG
Comparing to some others bin, I think I located CW_CAN_R at
0x136E4     Hex:0x28
0x136E6     Hex:0x3C
0x136E8     Hex:0x28
0x136EA     Hex:0x3C

CW_CAN_C   
0x1019D    Hex:0x05

set all this values to 0x20
But didn't make any difference, stil got

18014 - Rough Road/Engine Torque Signal from ABS
            P1606 - 35-00 - Electrical Malfunction
17931 - Crash Signal from Airbag Controller
            P1523 - 35-00 - Implausible Signal
18058 - Powertrain Data Bus
            P1650 - 35-00 - Missing Message from Instrument Cluster
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BlackT
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« Reply #14 on: March 04, 2019, 12:32:48 PM »

Okey I think my CW_CAN_R is located good.  When I set values to 0x00 i get rid off this DTC

18058 - Powertrain Data Bus
            P1650 - 35-00 - Missing Message from Instrument Cluster


Obviously on ME7.5   P1606  P1523 are not connected to CW_CAN_R, so I need to dig further.
To explain others, this how CW_CAN_R looks like.  In my case i need byte 5 set to zero so  0x3C set to 0x1C, and 0x28 to 0x08




Edit: only when I set CW_CAN_R to 0x00 i dont have cluster DTC.  I set i to 0x20 have cluster DTC, set it to 0x1C/0x08 again have cluster DTC. What doesen't have any sense  Huh
« Last Edit: March 04, 2019, 02:45:27 PM by BlackT » Logged
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