Mac OS X 10.4.3 or later: Sudden Motion Sensor information doesn‘t appear in System Profiler or third-party utilities

If System Profiler, or third-party utilities capable of reporting the status of Sudden Motion Sensor, don't display any information for the Sudden Motion Sensor, it's not an indication of an issue. This omission can happen when using Mac OS X 10.4.3 or later on these PowerBook models:

• PowerBook G4 (12-inch 1.5 GHz)
• PowerBook G4 (15-inch 1.67 GHz)
• PowerBook G4 (17-inch 1.67 GHz)
• iBook G4 (Mid 2005)
  
  

The missing information is not a reflection upon the sensor's actual status, so your sensor is probably working fine despite the reporting issue.

This document will be updated as more information becomes available.