For 1990-2009 cars

Table 1: | Radio Scan Tool Output Control
Table 2: | Vehicle Communication Interface Module (VCIM)

#### Radio Scan Tool Output Control

Scan Tool Output Control | Additional Menu Selection(s) | Description
--- | --- | ---
Left Front Speaker | Front Speakers | Commanding the speaker ON will turn off all speakers except this speaker (including door tweeter if equipped). Commanding the speaker OFF will turn off all speakers.
Right Front Speaker | Front Speakers | Commanding the speaker ON will turn off all speakers except this speaker (including door tweeter if equipped). Commanding the speaker OFF will turn off all speakers.
Left Rear Speaker | Rear Speakers | Commanding the speaker ON will turn off all speakers except this speaker. Commanding the speaker OFF will turn off all speakers.
Right Rear Speaker | Rear Speakers | Commanding the speaker ON will turn off all speakers except this speaker. Commanding the speaker OFF will turn off all speakers.
Program Vin | -- | This function is used to clear radio theft information and learn a new VIN.

#### Vehicle Communication Interface Module (VCIM)

Scan Tool Output Control | Additional Menu Selection(s) | Description
--- | --- | ---
Green LED | -- | The VCIM illuminates the green LED on the inside rearview mirror when ON is selected.
Phone Call Test | -- | When ON is selected VCIM commands OnStar to connect to OnStar Center.
Red LED | -- | The VCIM illuminates the red LED on the inside rearview mirror when ON is selected.