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 Post subject: 3U111 DTC SupMask
PostPosted: Tue Oct 01, 2024 6:18 pm 
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Joined: Thu Apr 14, 2011 8:16 am
Posts: 425
I can't find the DTC SupMask on this ROM. I don't have access to the Nissan service manual for this one which would tell me which fault codes are supported and I could usually work it out from that.

It's usually always nearby before or after the ECU ID (0x893C on this ROM) but I'm seeing what looks like axis data (data growing with a pattern) already very close to this and I disassembled it in Ghidra and still unsure.

Can anyone identify the DTC SupMask start address?


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 Post subject: Re: 3U111 DTC SupMask
PostPosted: Wed Oct 02, 2024 5:46 am 
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The DTC Descriptor table starts at 0xA510 and the option pointer list starts at 0xA990 if that helps.


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 Post subject: Re: 3U111 DTC SupMask
PostPosted: Thu Oct 03, 2024 9:26 pm 
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Joined: Sat Mar 30, 2019 3:04 am
Posts: 362
p.108 Nissan Cube (Z11) JDM ???
http://rv-auto.ru/books/100_Nissan_Cube ... vaniiu.pdf

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SKYLINE 06`CPV35/MT6/VQ35DET/Cosworth/Eagle/ACL/ARP/Supertech/Cometic/MOCAL/
KAKIMOTO RACING/FUJITSUBO/Greddy/HKS/OBX RACING/AEROMOTIVE/UpRev


Last edited by Alex-Angarsk on Fri Oct 04, 2024 2:31 pm, edited 1 time in total.

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 Post subject: Re: 3U111 DTC SupMask
PostPosted: Fri Oct 04, 2024 10:25 am 
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bradsm87 wrote:
It's usually always nearby before or after the ECU ID (0x893C on this ROM)

DTC SupMask is usually located immediately after the second copy of the QH0/torque conversion map. 0xA212 ???


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SKYLINE 06`CPV35/MT6/VQ35DET/Cosworth/Eagle/ACL/ARP/Supertech/Cometic/MOCAL/
KAKIMOTO RACING/FUJITSUBO/Greddy/HKS/OBX RACING/AEROMOTIVE/UpRev


Last edited by Alex-Angarsk on Fri Oct 04, 2024 2:40 pm, edited 2 times in total.

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 Post subject: Re: 3U111 DTC SupMask
PostPosted: Fri Oct 04, 2024 2:17 pm 
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bradsm87 wrote:
The DTC Descriptor table starts at 0xA510.

0xA516 reverse byte order


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SKYLINE 06`CPV35/MT6/VQ35DET/Cosworth/Eagle/ACL/ARP/Supertech/Cometic/MOCAL/
KAKIMOTO RACING/FUJITSUBO/Greddy/HKS/OBX RACING/AEROMOTIVE/UpRev


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 Post subject: Re: 3U111 DTC SupMask
PostPosted: Sat Oct 05, 2024 3:33 am 
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Joined: Thu Apr 14, 2011 8:16 am
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Alex-Angarsk wrote:


Thanks! I must admit, I didn't really look :D

Alex-Angarsk wrote:
bradsm87 wrote:
It's usually always nearby before or after the ECU ID (0x893C on this ROM)

DTC SupMask is usually located immediately after the second copy of the QH0/torque conversion map. 0xA212 ???


Yep I think that's it. Thanks! That's good to know.

Alex-Angarsk wrote:
bradsm87 wrote:
The DTC Descriptor table starts at 0xA510.

0xA516 reverse byte order


The start of the table is a little before the first fault code. 0xA510 is the byte referencing which SupMask byte applies for the first fault.


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