Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
B125C 01 Satellite Antenna Circuit Short to Battery
B125C 02 Satellite Antenna Circuit Short to Ground
B125C 04 Satellite Antenna Circuit Open
The digital radio antenna requires a clear line of sight to the sky to operate properly. Reception may be limited, intermittent or unavailable inside structures.
The cost to diagnose the B125C GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The digital radio receiver, located inside the radio, receives digital radio information from the digital radio antenna located on the outside of the vehicle. The digital radio receiver is connected to the digital radio antenna via a shielded coax cable. The digital radio antenna contains an amplifier which is powered by the radio through the coax cable.
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