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Title: Help on security access code Bosch ecu Post by: kornelio on May 24, 2018, 10:39:57 PM Hi all,
I'm looking for what kind of hash / checksum / srs is being used to the following 16bit datas without success. They come from a communication between diagnostic tool and Boshc engine control unit. The message flow are the follow: Diag. Tool: 0x02 0x27 0x01 0x00 0x00 0x00 0x00 0x00 Request for security access Ecu : 0x04 0x67 0x01 0xPh 0xPl 0xaa 0xaa 0xaa where 0x04 are the lenght of message, 0x67 = 0x27+0x40, Ph Pl are plain data H and L Diag. Tool: 0x04 0x67 0x02 0xCh 0xCl 0x00 0x00 0x00 where Ch and Cl are the checksum or crypted data related to Ph and Pl I've obtained the response of the tool feeding message with only one bit set for Ph and Pl, but with no result. Ph Pl Ch Cl 00 01 42 88 00 02 82 80 00 04 02 5F 00 08 01 D4 00 10 FF 9D 00 20 F6 B1 00 40 D2 D9 00 80 43 29 01 00 03 C7 02 00 04 FE 04 00 07 5A 08 00 0B CA 10 00 13 8A 20 00 1E 8A 40 00 22 8A 80 00 E2 89 This are general values from ecu<->tool communication: Ph Pl Ch Cl 8C E9 39 97 D9 F6 61 33 BF C7 67 25 85 B2 00 ED 42 51 1B B0 F7 BD 1C 27 DA 89 27 3D B1 27 28 8E AF 6E 2A 71 BE 51 3F 5E 68 AD 4C 2A DC C4 5B 47 06 01 5F 62 71 9A 7A 6F 71 7D 83 4D 42 1D 8E 08 6B FA A2 83 63 A0 AA B6 6E 57 BC 73 E6 EB E5 5B A4 07 E8 37 A2 AD EA BA 9E 2A F5 FA 25 D1 F9 53 Hope someone better than me in decryption can give an help... Thank you in advance. Kornelio Title: Re: Help on security access code Bosch ecu Post by: H2Deetoo on May 27, 2018, 11:11:21 PM Can you post full partnumber and software version of the Bosch ecu ?
Title: Re: Help on security access code Bosch ecu Post by: kornelio on May 31, 2018, 09:03:06 AM Hi, these are all the information I can give you:
End Model Part Number: 8983702321 Software Version Number: 2 Hardware Part Number: 8983337470 Sys. Supplier ID/ECU Hardware Number: BOSCH0100 Base Model Part Number: 10C0386E Diagnostic Data Identifier: 2302 MEC: 0 Interchange Ability Number: 11BOSCH001 Ecu Address: 11 Thank you for any information! Kornelio Title: Re: Help on security access code Bosch ecu Post by: H2Deetoo on May 31, 2018, 10:47:31 PM Isn't there a (VAG) partnumber specified on the ecu?
Title: Re: Help on security access code Bosch ecu Post by: kornelio on June 01, 2018, 08:04:43 AM Hi, there's a Bosch code in thevusual form:
0 281 032 814 Title: Re: Help on security access code Bosch ecu Post by: IamwhoIam on June 01, 2018, 09:52:57 AM What kind of control unit is that supposed to be if you don't mind my curiosity
Title: Re: Help on security access code Bosch ecu Post by: kornelio on June 01, 2018, 12:15:13 PM This is the engine control unit of new Isuzu DMax and truck model M21.
For both veichles the engine code is rz4e Kornelio Title: Re: Help on security access code Bosch ecu Post by: prj on June 02, 2018, 03:48:22 PM Dump it in boot and reverse diag routine in ecu.
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