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Home >> Chevrolet >> 2010 >> HHR SS, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Cellular System, Entertainment System & Navigation System) >> Diagnostic Information and Procedures >> Radio Poor Reception >> Circuit/System Testing >> Antenna Circuit Testing

Antenna Circuit Testing

WARNING: This page is about a different car, the 2009 Chevrolet HHR. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the harness connector at the antenna.
  2. Radio ON, verify a test lamp illuminates between the entertainment remote enable signal circuit terminal 1, and ground.
    • If test lamp does not illuminate, test the circuit for short to ground or an open/high resistance. If circuit tests normal, replace the radio.
  3. Disconnect the antenna coax from the radio and the radio antenna.
  4. Test for infinite resistance between the antenna coax center terminal and ground.
    • If less than the specified value, replace the antenna coax.
  5. Test for less than 5 ohms of resistance on the antenna coax center terminal from end to end.
    • If greater than the specified range, replace the antenna coax.
  6. Test for less than 5 ohms of resistance on the antenna coax outer shield from end to end.
    • If greater than the specified range, replace the antenna coax.
  7. Test for infinite resistance between the coax center terminal and the outer shield.
    • If less than the specified value, replace the antenna coax.
  8. If all circuits test normal, replace the antenna.
  9. Ignition ON, radio ON, verify radio reception has improved.
    • If there is still poor reception, replace the radio.
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