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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.
    • If the DTC is set, replace the DRR.
  3. Ignition OFF, reconnect the antenna coax to the DRR, disconnect the digital radio antenna coax from the digital radio antenna.
  4. Ignition ON, test for 4.5-5.5 volts between the antenna coax center terminal and the coax outer shield.
    • If not within the specified range, replace the antenna coax.
  5. If all circuits test normal, replace the digital radio antenna.
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