For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
| • | 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 class 2 serial data from the body control module (BCM).
Reference Information
Schematic Reference
Connector End View Reference
Electrical Information Reference
| • | Circuit Testing |
| • | Wiring Repairs |
Scan Tool Reference
Circuit/System Testing
- Ignition OFF, key in the ignition, open the driver door. The courtesy lamps should illuminate.
- Ignition ON, radio ON, adjust the radio balance and fade to the left front speaker.
- If the speaker operates properly, replace the radio.
| ⇒ | If the courtesy lamps do not illuminate, refer to Courtesy Lamps Inoperative . |
| ⇒ | If the speaker does not operate properly, refer to Speakers Inoperative - One or More . |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for radio replacement, setup, and programming
