Engine-Codes - GMC - B125C GMC

B125C GMC Code - Satellite Antenna Circuit

- Code Popularity: 1,675 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B125C GMC?

  • Faulty Radio Antenna Base (Cellular Phone, Navigation and Digital Radio Antenna)
  • Radio Antenna Base harness is open or shorted
  • Radio Antenna Base circuit poor electrical connection
  • Faulty Radio Unit

|How to Fix the B125C GMC Code?

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.

|Code B125C GMC Tech Notes

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.

|What is the Cost to Diagnose the Code B125C GMC?

Labor: 1.0

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.

Does your GMC have Safety Recalls? → Check here

|What are Code B125C GMC Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B125C GMC Code Mean?

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.

B125C GMC Code - Satellite Antenna Circuit

|Need more Information on the B125C GMC Code?

Need more information on how to fix the B125C GMC code? Get Access to Factory Service Manuals

|Need Help with the B125C GMC Code?

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