Using OASIS requires a code, but it wouldn't be much use to you. Many of the newer TSBs are available free online - Google. Only some of the older disks contain TSBs. What year & model are you looking for? Most of the DVDs have expired, so you'll have to roll back your computer's calendar to access the data. The PC/ED contains everything related to engine management & emissions operation, including the summary; the shop manual just shows how they're put together. The links in this caption show how to install & use the disks.
