Chime Inoperative

Chime Inoperative

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview
* Review Strategy Based Diagnosis for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The radio generates the audible warning through the left front speaker. The radio receives audible warning requests via GMLAN serial data from the body control module (BCM).

Circuit/System Testing

1. Ignition OFF, key in the ignition, open the driver door. The courtesy lamps should illuminate.

• If the courtesy lamps do not illuminate, go to Courtesy Lamps Inoperative. Courtesy Lamps Inoperative

2. Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.

• If the speaker does not operate properly, go to Speakers Inoperative - One or More. Speakers Inoperative - One or More

3. If the speaker operates properly, replace the radio.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests

Control Module References for Radio replacement, setup, and programming