Hi,
CodeWarrior 1.6 Eclipse version was was designed for Magni V devices from S12 devices family.
CodeWarrior v 5.2 is the last version from the Classic type of CodeWarrior and support S12X family as a last family of the devices. Unfortunately, the version 5.2 does not contain files for ilder families of S12 family devices so if they are required they must be additionally inserted by procedure which can be found at our community pages. But this is not necessary for the device you use.
(https://community.nxp.com/t5/Classic-Legacy-CodeWarrior/How-to-Add-missing-derivatives-to-CodeWarrio...)
Best regards,
Ladislav