These tools run locally in the browser, use no backend, and help organize source-gated truck diagnostic information.
SPN/FMI Decoder: translate SPN and FMI numbers into plain-language descriptions and link to matched source-backed fault code records. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
FMI Lookup Tool: look up any of the 32 J1939 Failure Mode Identifiers and understand what diagnostic direction each FMI category implies. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
Source Address Lookup: decode J1939 source address values to their module type and understand why SA context is required for selecting the correct service documentation. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
ELD Malfunction Decoder: match ELD malfunction or data diagnostic event wording to FMCSA regulatory categories and required driver response under 49 CFR 395. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
Fault Code Note Template: build a complete fault code record — including active/stored status, lamp colors, derate level, and operational context — before calling a technician or service department. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
Technician Call Checklist: organize the fault code, symptom, warning lamp, derate, and vehicle identification information that service departments need before a diagnostic appointment. Runs in the browser with no data submission. Educational reference for commercial vehicle fault code diagnosis.
It gives source-backed educational context before using official service information or diagnostic tools.
No. They explain terminology, symptoms, and diagnostic context without replacing OEM procedures.
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