Holden used the shared GM Tech 2 and later GM PC-based systems. A Holden 2005 service manual lists Tech 2 as a basic diagnostic tool; Holden's 2017 submission distinguishes Tech 2 diagnostic software, Tech2Win emulation, GDS and service programming. Verify model, year, region and current access before choosing a system. Holden MY2005 VZ service manual; GM Holden submission, 2017.
Isuzu software on the same tester
A Holden service bulletin says the RA Rodeo required selecting Isuzu General Export software in TIS 2000 when loading the Tech 2 light-commercial-vehicle application. This is a documented vehicle-specific example of one handheld tester with different manufacturer software, not a claim that all Holden and Isuzu software is interchangeable. Holden service Techline TL0663-0402. See Isuzu diagnostic systems and GM GDS2 and Techline Connect.