{"uid":"cap_F3UvJsGIIR4aWcUE53fux","slug":"faultcode-diagnostics-dtc-lookup-01316499","name":"FaultCode Diagnostics – DTC Lookup","description":"What a vehicle fault code means, with source-attributed generic and make-specific definitions and any disagreement between sources stated.","url":"https://faultcode-diagnostic-mcp.bowling-anthony.workers.dev/v1/device/catalog/dtcs/P0300","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.006","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.006/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.006","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_X6Q4RAZo2NH41Dmtav2MD","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.006","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up the definition and manufacturer document evidence for a single OBD-II diagnostic trouble code (P, B, C, or U prefix)","exampleAgentPrompt":"My car is showing fault code P0300 — can you look up the official definition and any manufacturer document references for it?","exampleUseCases":[{"title":"Check engine light diagnosis","prompt":"My check engine light came on and my scanner shows code P0420 — what does that fault code actually mean according to official sources?"},{"title":"Pre-purchase vehicle inspection","prompt":"I'm looking at a used car that has stored code B1234 in its history — can you pull the definition and any manufacturer docs for that fault code so I know how serious it is?"},{"title":"Fleet maintenance triage","prompt":"Our fleet scanner logged DTC U0100 on one of our vans — look up the official definition and any manufacturer evidence for that code so the mechanic knows what they're dealing with."}],"resultDescription":"Returns a source-attributed definition for the requested DTC (P/B/C/U code), including real appearances in official manufacturer documents when available. If the catalog has neither a definition nor document evidence for the code, the response is still complete but costs nothing. Charge of $0.005 USDC applies only when a definition or document evidence is returned.","failureModes":["Unknown or malformed DTC code returns a no-match response at no charge","Network or service unavailability returns an error with no charge","Invalid code format (not P/B/C/U prefix) may return an error or empty result","Payment failure via x402 protocol prevents the call from completing"],"whenToPreferThis":"Choose this endpoint when you need authoritative, source-attributed definitions for specific automotive diagnostic trouble codes — especially when manufacturer document provenance matters. It is cost-effective because codes with no catalog entry are free. Prefer it over generic LLM-based code explanations when you need traceable, document-backed references rather than synthesized descriptions.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:31:33.030Z","isFirstParty":false}