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Home >> Cadillac >> 2009 >> XLR Base >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 13 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Radio Audio Inoperative at Rear Seat Audio (RSA) Control >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2008 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the X1 harness connector at the rear seat audio (RSA) module.
  2. Ignition OFF, test for less than 5 ohms between the ground circuit terminal 6 and ground.
    • If less than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, test for B+ between the voltage supply circuit terminal 5 and ground.
    • If less than the specified range, test the voltage supply circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, replace the rear seat audio module.
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