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Test Description

The numbers below refer to the step numbers on the diagnostic table.

  1. 3.  Determines if the OnStar® status LED has the necessary GREEN LED signal circuit voltage.
  2. 5.  If the GREEN LED signal is shorted to voltage then the OnStar® 3-button assembly has been damaged and the OnStar® 3-button assembly must be replaced.
Fig 1: OnStar Button LED Inoperative - Diagnostic Table
G01457948Courtesy of GENERAL MOTORS CORP.
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