AutoCodes – GMC – B2470 2016 GMC Sierra

B2470 2016 GMC Sierra Code - Cellular Phone Antenna Circuit Malfunction

Quick Answer

The cellular phone and navigation antenna are connected to the Telematics Communication Interface Control Module. Common causes include Faulty Cellular Phone, Navigation, and Digital Radio Antenna, Cellular Phone, Navigation, and Digital Radio Antenna harness is open or shorted, Cellular Phone, Navigation, and Digital Radio Antenna circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B2470 2016 GMC Sierra indicates Cellular Phone Antenna Circuit Malfunction.
Common causes
Common causes include Faulty Cellular Phone, Navigation, and Digital Radio Antenna, Cellular Phone, Navigation, and Digital Radio Antenna harness is open or shorted, Cellular Phone, Navigation, and Digital Radio Antenna circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 224
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 01, 2023
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Code B2470 2016 GMC Sierra Description

The cellular phone and navigation antenna are connected to the Telematics Communication Interface Control Module. This module supplies 5 V to the cellular phone and navigation antenna to power the internal amplifier. When the vehicle is equipped with the optional navigation radio, a navigation antenna signal splitter is installed to distribute the GPS signal to both the Telematics Communication Interface Control Module and the navigation radio. The navigation radio supplies 5 V through the GPS antenna coaxial cable to the navigation antenna signal splitter to power the internal navigation radio signal amplifier. The Diagnostic Trouble Code (DTC) will be set when the Telematics Communication Interface Control Module detects a failure in the cellular antenna signal circuit.
OBDII Code B2470 2016 GMC Sierra - Cellular Phone Antenna Circuit Malfunction - AutoCodes.com
B2470 2016 GMC Sierra Code - Cellular Phone Antenna Circuit Malfunction

What are the Possible Causes of the DTC B2470 2016 GMC Sierra?

  • Faulty Cellular Phone, Navigation, and Digital Radio Antenna
  • Cellular Phone, Navigation, and Digital Radio Antenna harness is open or shorted
  • Cellular Phone, Navigation, and Digital Radio Antenna circuit poor electrical connection
  • Faulty Telematics Communication Interface Control Module

How to Fix the DTC B2470 2016 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2470 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B2470 2016 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2470 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code B2470 in a 2016 GMC Sierra?

- Common symptoms include poor cell phone reception, dropped calls, and issues with Bluetooth connectivity.

2. What causes the Cellular Phone Antenna Circuit Malfunction in a 2016 GMC Sierra?

- The code B2470 is typically triggered by a faulty cellular phone antenna, damaged wiring, or a defective antenna amplifier module.

3. How can I diagnose the B2470 code in my 2016 GMC Sierra?

- Diagnosis involves inspecting the antenna and its wiring for any visible damage, testing the antenna amplifier module, and checking for proper connectivity.

4. Can I repair the Cellular Phone Antenna Circuit Malfunction in my GMC Sierra myself?

- Repairing the issue may require professional diagnosis and expertise, but simple fixes like repairing or replacing damaged wiring can sometimes be done by DIY enthusiasts.

5. Is it safe to continue driving my GMC Sierra with the B2470 code present?

- While the code may not affect the vehicle's drivability, it is recommended to address the issue promptly to ensure proper cell phone connectivity and overall vehicle functionality.

6. How much does it typically cost to repair the Cellular Phone Antenna Circuit Malfunction in a 2016 GMC Sierra?

- Repair costs can vary depending on the extent of the damage and the parts needing replacement, but it can range from a few hundred to over a thousand dollars.

7. Can a malfunctioning cellular phone antenna impact other electronic systems in my GMC Sierra?

- Yes, since modern vehicles rely heavily on electronic systems, a faulty cellular phone antenna can potentially affect other systems like GPS navigation or hands-free calling features.

8. Will resetting the OBDII code B2470 make the issue go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue with the cellular phone antenna circuit is not addressed, the code is likely to reappear.

9. Are there any preventive maintenance tips to avoid the B2470 code in a 2016 GMC Sierra?

- Regularly inspecting the antenna and its wiring for damage, ensuring proper connections, and avoiding water damage can help prevent the occurrence of this code.

10. Can a professional automotive technician help me with diagnosing and repairing the B2470 code in my GMC Sierra?

- Yes, seeking help from a qualified technician with experience in electrical diagnostics and automotive electronics is recommended for an accurate diagnosis and effective repair of the issue.

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