GM only bidirectional scanner for Chevy, Buick, Cadillac and GMC that reads TCM and ABS codes and runs active tests and resets from your phone.
A GM only diagnostic dongle covering Buick, Chevy, Cadillac, GMC and the lesser-seen Pontiac, Saturn, Holden, Daewoo and Workhorse badges, on vehicles from 1996 up. It pairs over Bluetooth to the Ediag app -- no onboard screen, the phone does the display work -- and needs a WiFi connection for updates and initial activation.
It reaches full-system modules on supported GM platforms, including TCM, ECM, BCM, ABS, SRS, BMS, SAS and A/C/RTM, so you can pull transmission-specific codes and live data instead of only generic P-codes, and run the matching reset after a repair. Active test lets you command actuators -- radiator fan, throttle, window motors -- directly from the ECU to isolate a bad part from a bad signal.
Reset coverage includes TPMS Reset, ABS Bleeding, Oil Reset, Injector Code, SAS Reset, BMS Reset, Gearbox Reset, AFS Reset, Sunroof, and Brake Reset, reached from the all-system diagnostic menu. All ten standard OBD2 test modes work on any 1996+ vehicle regardless of make, so it still functions as a general code reader outside GM vehicles -- just without the GM-specific reset and bidirectional functions.
One real limitation: GM vehicles from 2011 and newer that require the CAN FD protocol are not currently supported, so this is best suited to 1996-2010 GM vehicles for the advanced functions. No subscription, lifetime updates, 22 languages, Android/iOS app only (not tablet-compatible).
| Vehicle coverage | Buick, Chevy, Cadillac, GMC, Pontiac, Saturn, Holden, Daewoo, Workhorse, 1996-2010 for CAN-based GM |
| Connection | Bluetooth to the Ediag app, requires WiFi for activation/updates |
| Systems | TCM, ECM, BCM, ABS, SRS, BMS, SAS, A/C and RTM, model dependent |
| Service functions | TPMS Reset, ABS Bleeding, Oil Reset, Injector Code, SAS Reset, BMS Reset, Gearbox Reset, AFS Reset, Sunroof, Brake Reset |
| Not supported | 2011+ GM vehicles requiring CAN FD protocol |
| Languages | 22 working languages |
| Updates | Lifetime software updates, no subscription fee |
