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UDS Toolbox

Find why a UDS flash failed from a CAN trace; decode UDS, ISO-TP and DTCs. No hardware.

First seen 4 Oct 2026. Evidence as of 5 Oct 2026.

6
Tools
From an anonymous probe
1
Source listings
Each with its own history
2
Recorded changes
Since first seen

Tools

ToolDescriptionBehaviour
build_uds_requestBuild a UDS request as hex with an annotated breakdown. Services: session, ecu_reset, read_did, write_did, security_seed, security_key, tester_present, routine, request_download, transfer_data, transfer_exit, clear_dtc, read_dtc, control_dtc, comm_control, raw. Numeric strings are hex.Read-only
decode_dtcConvert a 3-byte UDS DTC to the SAE J2012 style code (P/C/B/U + digits) plus failure type byte, or the reverse ("U0073-00" to hex). With a status byte, explains each of the 8 DTC status bits.Read-only
decode_isotpReassemble ISO-TP (ISO 15765-2) messages from CAN frames, per CAN id, and decode each as UDS. Reports frame types (SF/FF/CF/FC), flow-control BS/STmin, sequence-number errors, interrupted messages, padding, and N_Bs/N_Cr/STmin timing warnings when timestamps (ms) are given. Accepts a frame list or a candump text dump.Read-only
decode_udsDecode a UDS (ISO 14229-1) PDU from hex: request, positive or negative response. Names the service, sub-function (and suppressPosRsp bit), DID/RID/address fields, and for negative responses the NRC with meaning and typical cause. Unknown SIDs and NRCs are labelled, not rejected.Read-only
uds_referenceShort UDS reference with ISO 14229-1 clause pointers (paraphrased). Topics: a service ID (0x27) or name, an NRC (0x78 or "nrc 78"), a DID (F190) or RID (FF00), timing (p2, p2*, s3), sessions, security (0x27 vs 0x29), reprogramming_sequence. Unknown topics return a topic list.Read-only
udslib_integrationPlan how to integrate the UDSLib C stack (ISO 14229 UDS server/client for embedded ECUs): which repo files to take, Kconfig/config hints, an init skeleton, the closest example, and the license terms (free noncommercial / commercial). UDSLib speaks ISO-TP over CAN/CAN-FD; DoIP is not supported.Read-only

Change history

  1. Description changed (registry)
  2. Listed (registry)
Source listings
SourceListingFirst seenLast seenVersions
Official MCP Registrycom.udslib/uds-toolbox4 Oct 20265 Oct 20262