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Home >> Isuzu >> 2007 >> Ascender 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 439 (Cellular System, Entertainment System & Navigation System) >> Diagnostic Information and Procedures >> Radio Audio Inoperative at Rear Seat Audio (RSA) Control >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
  1. Using a known good pair of wired headphones, plug them into both of the headphone jacks on the RSA controller.
  2. Radio ON, RSA ON, cycle through several sources and listen for audio. Adjust appropriate volume control.
    • If no audio is heard through the headphones, replace the RSA controller.
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