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Circuit/System Testing

  1. Ignition OFF, disconnect the antenna coax from the DRR. Connect the EL-48028  to the DRR.
  2. Radio ON, tuned to XM, verify DTC B1259 is not set as current.
    • If the DTC is current, replace the DRR.
  3. Ignition OFF, disconnect the digital radio antenna coax from the digital radio antenna.
  4. Ignition ON, test for less than 1 volt between the antenna coax center terminal and ground.
    • If greater than the specified range, replace the antenna coax.
  5. Test for infinite resistance between the antenna coax center terminal and ground.
    • If less than the specified value, replace the antenna coax.
  6. Test for less than 5 ohms of resistance on the antenna coax center circuit 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, test or replace the digital radio antenna.
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