A pch++ file extension is related to the CodeWarrior development tool. A pch++ file contains data.
Software that open pch++ file
PCH++ file extension - CodeWarrior data
What is pch++ file? How to open pch++ files?
File type specification:
The pch++ file extension is associated with the CodeWarrior an embedded software development studio for Microsoft Windows operating system developed by Freescale Semiconductor, Inc.
The pch++ file stores some kind of data used by CodeWarrior development tool.
The default software associated to open pch++ file:
CodeWarrior Development Studio 
Company or developer:
Freescale Semiconductor, Inc.
CodeWarrior Development Studio is integrated development environment for programming languages, such as C, C++, Assembly language, Pascal, Object Pascal, Objective-C, and Java.
List of recommended software applications associated to the .pch++ file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open pch++ file, edit pch++ file, convert pch++ file, view pch++ file, play pch++ file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with pch++ file - CodeWarrior data
Click on the software link for more information about CodeWarrior Development Studio. CodeWarrior Development Studio uses pch++ file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
