The Sirus XM signal comes and goes and now it will not get a signal?

2007 GMC SIERRA

174,000 MILES • 6.6L • V8 • TURBO • 2WD • AUTOMATIC

SUPERCOMP

MEMBER
1 POST

I have contacted Sirus XM, and my subscription is current. What could be the problem?

Oct 11, 2023 at 4:44 AM

JACOBANDNICKOLAS

✓Experienced Mechanic
110,248 POSTS

Hi,

That's a tough one. Have you checked the fuse for the digital radio receiver (DRR)?

Also, are the other radio options working? For example, do you have reception on the standard radio stations? I ask because there could be an issue with the antenna. The digital radio receiver uses the same antenna as the radio.

Also, pics 1 -5 are the diagnostics for the DRR. Take a look through them and let me know if you are comfortable performing them.

If the radio does work properly and the DRR fuse is good, then there is a chance the digital radio receiver is faulty. see pic 6 below. Pic 7 is the wiring schematic for the DRR. Pics 8 and 9 show the power supply and ground location for the DRR. Check both.

Let me know what you find. Note: If there is power and ground to the DDR, chances are the unit is faulty.

Take care,

joe

See pics below.

Images (Click to enlarge)