The DRR detects a short to voltage or an open in the antenna circuit.
Action Taken When the DTC Sets
The radio displays No XM Signal.
Conditions for Clearing the DTC
- A current DTC will clear when the conditions for setting the DTC are no longer present.
- A history DTC clears after 100 malfunction-free ignition cycles.
Diagnostic Aids
When diagnosing digital radio concerns, the vehicle should be located outside with an unobstructed view of the southern sky to ensure proper reception of the satellite signal. Reception may limited, intermittent or not possible inside structures or under heavy cover.
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Radio/Audio System Description and Operation
Electrical Information Reference
- «Circuit Testing»(ref-364488-S04114729552010063000000)
- «Connector Repairs»(ref-364488-S23771656832010063000000)
- «Testing for Intermittent Conditions and Poor Connections»(ref-364488-S16423338542010063000000)
- «Wiring Repairs»(ref-364488-S17530456672010063000000)
Scan Tool Reference
Control Module References for scan tool information
Special Tools
EL-48028 Digital Radio Test Antenna. See Special Tools .