Alientech New BENCH protocol for AC Delco E39

Alientech just dropped Upgrade 2.82 (28.01.2026) – and it's a game-changer for high-performance GM platforms!

Now you can access the AC Delco E39 ECU in BENCH mode without opening the control unit. Direct connector access means faster, safer reading & writing – no more invasive work on premium/sporty vehicles.

This is the first step in a dedicated development path for the most widespread AC Delco ECUs in the GM fleet.

Technical Highlights:

Connection: BENCH (no ECU opening needed)

ECU: AC Delco E39

Production: from 2010 onwards

Brands: Chevrolet, GMC, Saab

Supported Models (ECU examples):

Chevrolet Camaro, Equinox

GMC Terrain

Saab 9-5

Full engine management control on iconic US & international models – reliable, repeatable procedures even on high-performance rides like the Camaro.

Workshops handling GM performance cars: this upgrade turns complex jobs into quick, safe operations.