Yes they work. They are the factory/Genuine/LR official diagnostic tool.
Be aware though, that the CD is useless by itself - you also need all of the various other bits of hardware/leads/etc, that make up the Testbook/T4 solution.
Be aware though, that the CD is useless by itself - you also need all of the various other bits of hardware/leads/etc, that make up the Testbook/T4 solution.
