Hello,
To begin, Service Center 11 supports tests for some sensor devices such as the GPS, Fingerprint Readers, and few others. Unfortunately, the LCD and CPU sensors are not specified in this list. All Mac OS systems are tested using Service Center bootable and this only allows access to low-level testing for the main components of the device, which explains the LCD and CPU producing a passed result.
If you would like more information on the tests available in Service Center 11, the test list along with test descriptions can be found in the Service Center "Help" tab and under "contents".
Hope this helps,
Meliton P.