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Home >> Chevrolet >> 2010 >> Impala Police >> Repair and Diagnosis >> Accessories & Equipment >> Cellular Systems, Entertainment Systems And Navigation Systems >> Diagnostic Information and Procedures >> Radio Poor Reception >> Circuit/System Testing >> Radio Antenna Module Test

Radio Antenna Module Test

  1. Inspect the radio antenna module grounding surfaces and the mounting hardware for any corrosion that may cause a poor ground.
    • If corrosion is noted, clean the grounding surfaces or hardware.
  2. Ignition OFF, disconnect the harness connector at the radio antenna module.
  3. Radio ON, verify a test lamp illuminates between the signal circuit terminal 1 and ground.
    • If the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the radio.
  4. If all circuits test normal, replace the radio antenna module.
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