Radio Audio Malfunction at Rear Seat Audio (RSA) Control. Chevrolet TrailBlazer

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Radio Audio Malfunction at Rear Seat Audio (RSA) Control

Diagnostic Instructions

•	Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

•	Review Strategy Based Diagnosis for an overview of the diagnostic approach.

•	Diagnostic Procedure Instructions provide an overview of each diagnostic category.

Reference Information

Schematic Reference

Radio/Navigation System Schematics

Connector End View Reference

Component Connector End Views

Electrical Information Reference

•	Circuit Testing

•	Connector Repairs

•	Testing for Intermittent Conditions and Poor Connections

•	Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

Radio ON, verify clear audio is heard from each audio speaker with the RSA system OFF.

⇒	If audio is inoperative from one or all speakers, refer to Speaker Malfunction.

Circuit/System Testing

Using a known good pair of wired headphones, plug them into both of the headphone jacks on the RSA controller.
Radio ON, RSA ON, cylcle through several sources and listen for audio. Adjust appropriate volume control.

⇒	If no audio is heard through the headphones, replace the RSA controller.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Refer to Control Module References for RSA replacement.