NetTerminal vs J1939FaultCode

NetTerminal turns your iPhone into a powerful network diagnostic terminal. Designed for IT professionals, network admins, and curious users, NetTerminal puts a Linux-style command prompt right in your pocket. FREE COMMANDS • ping — test host reachability • dig / nslookup — DNS lookups (A, AAAA, MX, NS, TXT, SOA) via DNS-over-HTTPS • whois — domain registration lookup • man — built-in Linux command manual • ifconfig / ipconfig — local network interface info PRO COMMANDS (one-time IAP, unlock forever) • traceroute / mtr — visualize packet routes • portscan / nmap — open port scan with service version detection • speedtest — bandwidth via Cloudflare endpoints • ssh / connect — full SSH client • wifi — Wi-Fi signal and connection diagnostics • monitor — continuous host availability with charts • diagnose — one-tap PDF diagnostic report • subnet — subnet calculator (equal-size + VLSM) • myip — smart public IP detection (multi-source, VPN/proxy detection) • http / https / curl — HTTP request tools • base / radix — number base conversion + bitwise operators • explain — AI explains Linux commands in Chinese (BYO Claude / OpenAI API key) • voice — voice command input • history / alias — command history with custom aliases DESIGN • Linux-style green-on-black terminal aesthetic • Familiar command syntax • Auto-complete and command suggestions PRIVACY FIRST We don't track you. Everything runs on-device or against the services you explicitly query. Perfect for: troubleshooting Wi-Fi, learning networking, managing remote servers.

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.