T-SB-0014-15
March 27, 2015
Page 8 of 12
Reception Diagnosis Using Antenna Test Kit
Repair Procedure (Continued)
Repair Procedure
XM Satellite Radio Reception (Continued)
NOTE
• Comparison vehicles are a good resource to determine what is available in the area.
• If appropriate and within dealer policy, temporarily swapping a component (radio head
unit, extension box, NAV ECU, etc.) between the problem vehicle and a dealer-owned
vehicle is one method to confirm the cause.
• If the XM test antenna does not make a difference, consider other possible interfering
factors such as customer accounts, radio stations, trees, buildings, etc.
Figure 3. XM Antenna and Conversion Cable
Did the radio reception improve?
• YES — Continue to step 6.
• NO — Replace the XM radio, and refer to applicable Repair Manual for further
reception diagnosis.
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