BLCKTEC 430S Bluetooth OBD2 Scanner with Transmission Codes

The BLCKTEC 430S is a small Bluetooth dongle that plugs into the OBD2 port and pairs with the RepairSolutions2 app on iOS or Android. There is no screen or battery to manage; the phone is the display. It reads and clears engine, transmission, ABS and SRS codes, runs an all-system scan, and supports all 10 OBD2 modes with live data.

For a transmission complaint it gives you the codes and a plain-English explanation, and the service check screen shows transmission temperature along with oil life, brake pad life and tire pressure where the vehicle reports them. Watching trans temp while you road test a slipping or flaring unit tells you a lot before the pan ever comes down.

The 430S replaces the older 430 with a newer chip, supports both classic CAN and CAN-FD for newer vehicles, and has FCA Security Gateway access through AutoAuth for Chrysler, Dodge, Jeep, Ram, Fiat and Alfa Romeo, so it can clear codes on those late-model trucks instead of only reading them. Service functions include oil maintenance reset, battery reset and initialization, TPMS relearn procedure, and battery and charging system tests.

To use it: plug it in, turn the key to ON (or press the start button twice without the brake on keyless vehicles), pair it in the app, and run the scan. It stays small enough to leave in the glovebox.