C2 14230

As ISO 14230 allows (see general 14230 info page), Nissan :

• Implements only a subset of the standard SID requests
• Adds mfg-specific extensions to standard SIDs
• Adds mfg-defined SIDs

TODO: document availability, common features and differences between K line command set and CAN-only UDS / iso14229 protocol

SID List

• $09 - Request VIN
• $11 - Reset ECU
• $12 - Read Freeze Frame Data
• $14 - Clear DTC Information
• $17 - Read DTC's
• $1A - Read ECU ID
• $20 - Stop Diagnostic Session
• $21 - Read Data by Local Identifier
• $22 - Read Data by Common Identifier (Data Identifiers (DID) Range From 0 - 65535)
• $27 - Security Access
• $30 - I/O Control by Local ID
• $31 - Start Routine by Local ID
• $32 - Stop Routing by Local ID
• $33 - Request Routine Results by Local ID
• $34 - Request Download
• $36 - Transfer Data
• $37 - Request Transfer Exit
• $3B - Write Data by Local Identifier
• $3E - Tester is Present
• $81 - Start Communication
• $82 - Stop Communication
• $A3 - Read Time of DTC's
• $AC - Request Simply Dynamically Defined Local ID (Purpose???)

Extensions to standard SIDs

$11

• 01 - Power On Reset
• 80 - Backup RAM Reset

Note - For my 06 350z, the TCM only supports 01 and the ECU seems to only support 80 (but might support just $11 as well, under proper conditions?)

$1A

• 80
• 81 - Request ECU ID
• 82
• 83

$27

TODO : investigate alternate algorithm, that uses "27 8x" or "27 03" requests.

• 01 RequestSeed : ECU returns 32bit seed
• 02 SendKey : host sends back key calculated with algorithm 01

$34

• 80 RequestDownload : prepare stuff
• 81 - Only available inside BL kernels ? Or just some ECUIDs ?
• 82 - Only available inside BL kernels ? Or just some ECUIDs ?
• 83 - ?

$36

• BLOCKNO_H BLOCKNO_L 20 ... - TransferData

$37

• CKS_H CKS_L - RequestTransferExit. Returns "7F 37 91" if the checksum is bad.

Custom, mfg-defined SIDs

A0

????

A3

???? related to DTCs

AC LoadItems

mem addresses or possibly LID / CID values

BF RAMjump !!!

• BF 00 RAMjumpcheck
• BF 01 RAMjump