C 1500 Yukon 2WD V8-4.8L VIN V (2000)
Diagnostic Chart (Part 2 Of 2)
TEST DESCRIPTION
This procedure is for diagnosing problems with the OnStar(R) button assembly. The following numbers refer to the steps in the table.
3. Tests for proper operation of the OnStar(R) Center button.
4. Tests for proper operation of the OnStar(R) Call Answer/Call End button.
5. Tests for proper operation of the OnStar(R) Emergency button.
9. Determines if the OnStar(R) button assembly has the necessary power and signal circuits.
Operator Unable to Hear Caller - OnStar
Diagnostic Chart
TEST DESCRIPTION
The following procedure tests for poor performance or an inoperative hands-free microphone. The following numbers refer to the steps in the table.
2. This step verifies that the OnStar(R) call is successfully connected. The call may take up to 3 minutes to complete.