Operation CHARM: Car repair manuals for everyone.

OnStar Buttons and Microphone Input Test

OnStar Buttons and Microphone Input Test




1. Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, make the following input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the switches and microphone must be faulty; replace it.