KESS3 Protocols Releases

New BENCH development for AC Delco E84: GM compact platforms (EcoTec and Flex).

The series of releases dedicated to AC Delco ECUs now extends to GM small-displacement platforms.

04.02.2026 – Upgrade 2.86

With the introduction of BENCH mode on the E84 control units — previously manageable only via OBD — you now have direct access to the ECU, simplifying workshop operations on compact vehicles widely distributed across the global market.

Designed for 1.0, 1.4 EcoTec and 1.8 Flex engines from 2016 onwards, this release concretely expands operational possibilities on urban and compact cars.

An update that improves operational safety and workflow continuity, reducing intervention times and increasing procedure reliability.

Technical focus

  • Connection: BENCH
  • ECU: AC Delco E84
  • Production years: from 2016
  • Brands involved: Chevrolet, Holden, Opel

Supported vehicles ECU

  • Chevrolet Beat, Onix, Prisma, Spark, Spin
  • Holden Spark
  • Opel Karl

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