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Title: security access kwp2000 negative response Post by: tao13 on May 28, 2025, 12:00:35 PM I try to go over security access on me7.5 with kwp2000. My ecu is on bench (alone without cluster and other modules) and i use mc33290 to send and receive dates onkline at 10400.
I used in short mode , not extended (f1 10): 1 slow init 2 start diagnoses session ( 81 and 86 respond ok, 85 is rejected) 3 Testerpresent 4 accesstimingparameters ( 0x83; 0x03; 0x00; 0x01; 0x00; 0x14;) 5 ecu identification All respond ok. After I tried 0x21 with 1,5,11,13,23,31 , i receive negative response 7f 10 11. Must make other timing parameters settings or put some special delays between commands? For bootmode if i try slowinit, ecu didn't respond. Some advice? Thanks Title: Re: security access kwp2000 negative response Post by: tao13 on June 07, 2025, 06:11:44 AM Anybody with some advice how m..s read ecu file? It is a non kwp command after start dev session here. It is a pach wrote directly in memory? If yes, how it is wrote because not see the command?
55 EF 8F 70 FE 81 10 F1 81 03 83 F1 10 C1 EF 8F C3 82 10 F1 10 89 1C 83 F1 10 7F 10 12 25 83 10 F1 10 86 50 6A 83 F1 10 50 86 50 AA FE FF FF FF FE FE CD 92 B3 FF FF FF FF FE FE FE FE FF FE FE DE 93 D4 F3 D2 83 0B 08 30 FF 9A B9 B3 9E D1 D4 F3 D2 DA 42 03 42 03 C2 DE F6 02 FF D6 FF 02 FF C8 2D 42 D3 C9 DE FA 02 FF D7 0F 93 9F D6 2D 42 D3 F8 DE FA 02 FF D7 DB CB 2D 42 03 02 DE FA 02 FF 9A 06 9A 79 D7 05 BA 9A B2 9A 92 92 B2 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 F2 D2 F2 FA 92 92 92 9A 92 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 92 9A 2D 42 1B 42 DE FA 02 FF 9A 86 9A 08 08 69 F6 11 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 BA B2 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 9A 9A 9A 92 92 92 92 9A 9A FF 2D 42 1B 42 DE FA 22 FF 9A 86 08 68 92 4D D2 D2 9B D3 D2 9B 93 00 DA 9A 4D D3 D2 9B D3 D2 9B B3 00 92 B2 92 20 B2 20 49 93 4B 9B 9B 93 60 9E 9B 92 60 93 97 9B 93 60 96 97 9F 9B 92 60 9A 92 00 D2 9A 4F 92 92 00 92 49 92 9E 96 FF 2D 42 13 02 DE FA 02 FF 9A 10 92 DA DA 9A 96 A9 D2 00 01 9E 9B 9B 96 40 97 9B 9B 96 40 DF DA A3 9E 96 32 96 Title: Re: security access kwp2000 negative response Post by: vvt18 on June 09, 2025, 06:12:41 AM tried for bootmode
0xC0 0x33 0x55 0x01 and i have response 0x40 0xFE 0x33 0x55 0x1 is it a negative response or ?? i don;t finde any specification in kwp protocol |