J1939FaultCode vs Auto Diag Solution

J1939 Fault Code Lookup is the offline diagnostic reference for commercial-vehicle technicians, fleet mechanics and field engineers. Decode SAE J1939 diagnostic trouble codes in seconds — no internet connection required. KEY FEATURES ■ SPN Search Look up Suspect Parameter Numbers by number or keyword. See full parameter definitions including unit, range and resolution. ■ FMI Reference Complete Failure Mode Identifier definitions (FMI 0–31), so you instantly understand the nature of the fault. ■ DTC Diagnosis Enter SPN + FMI and get the combined fault meaning, common root causes and practical repair suggestions. ■ Brand Fault Codes Cross-reference OEM codes from Cummins, Bosch, Weichai, Yuchai and common aftertreatment systems. ■ CAN Signal Database 2,900+ J1939 messages and 16,000+ signal definitions with start bit, length, scaling, offset, range and enum values — perfect for calibration and network troubleshooting. ■ Favorites & History Bookmark frequently used codes; your search history is saved automatically. ■ 100% Offline Every database is built into the app. Underground garage, remote job site, no signal — it just works. PRO UPGRADE (one-time purchase) • Removes all ads (banner + interstitial) • Unlimited signal database detail views (free tier: 3 per day) Buy once, keep forever. Family Sharing supported.

Auto Diag Solution est une application de diagnostic automobile permettant d'identifier les pannes, consulter les codes défaut, suivre l'entretien des véhicules, accéder à un garage virtuel et bénéficier d'un assistant IA spécialisé. Conditions d'utilisation (EULA) : https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Politique de confidentialité : https://autodiagsolution.com/privacy