Ford-specific bidirectional scan tool for ABS bleeds, BMS battery resets, throttle relearn and J2534 programming access on 1996-and-newer Ford, Lincoln and Mercury.
The D502 is built around Ford Group vehicles rather than treating them as just another OBD2 protocol. It is a Bluetooth interface that pairs to an Android or iOS phone and runs full-system diagnostics on Ford, Lincoln and Mercury models from 1996 to present - engine, ABS, SRS, transmission, HVAC and 4WD modules, not just the generic powertrain codes a basic code reader pulls.
On the service side it covers 37+ Ford-specific hot functions: throttle body relearn, oil reset, EPB (electronic parking brake) maintenance mode, BMS battery registration after a battery swap, ABS bleeding for brake jobs, SAS steering angle calibration, and injector coding. Supported functions vary by model year and engine, so check the vehicle's specific coverage before buying if you need one function in particular.
The hardware also includes a built-in SAE J2534 pass-thru interface, so the D502 can act as the vehicle communication interface for Ford's own factory diagnostic and programming software (FDRS/FJDS). Note that the OEM software and any Ford subscription are not included and have to be purchased separately from Ford/Motorcraft - this tool supplies the J2534 hardware side only.
Outside of Ford vehicles it still works as a standard OBD2 scanner on any 16-pin OBD2-compliant car or truck for code read/clear, I/M readiness, live data and battery voltage, so it is not a single-garage tool. Runs through a companion app with lifetime free updates, no subscription required for the Ford-specific functions.
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