Second batch from undecoded-vin-rca.md. Every entry verified (authoritative
WMI registry + prod sibling + VDS fingerprint + live PL24 probe) before adding
— a wrong brand label or a dead PL24 route both have real downside.
Q5 — WMI_BRAND_MAP (packages/shared, UX/telemetry only; does NOT change which
catalog decodes). Adds 9: W1V=Mercedes-Benz, VXF=Fiat, YAR=Toyota, NL1=Hyundai,
KPA=SsangYong, PL1=Proton, LSV=Volkswagen, LVV=Chery, ZCF=Iveco. Resolves the
RCA conflicts: VXF=Fiat (not Opel), YAR=Toyota ProAce (not Opel); NL1=Hyundai
(not TOGG — MY char predates TOGG). Deliberately NOT added: WF1/WAA/W0W (1-char
corruptions of WF0/WAU/WVW — mapping them would mislabel typo classes), VE1
(unresolved, deferred).
Q6 — PL24_WMI_SERVICE_MAP (real decode routing). Both target services are
proven live, so these only append WMIs to working routes (no dead-route →
isDecodeable()=true → 25s-budget/circuit-breaker hazard):
- SJN/VSK/MNT → nissan_parts (Sunderland/Spain/Thailand) — regression restore,
dropped in the 757905f refactor; nissan_parts proven (JN1 decodes in prod).
- W1V → mercedesvans_parts (Sprinter/Vito) — retires the RCA "never tried" flag:
mercedesvans_parts decodes WDF44770513186937 live today via the same P5 path.
Tests: shared getBrandFromWmi (adds + corruption-skips return null), pl24 route
map. Full api suite green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Semih Yesilyurt
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