AutoCodes – GMC – B2470 2015 GMC Sierra

B2470 2015 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 2015 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 282

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 01, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2470 2015 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 2015 GMC Sierra - Cellular Phone Antenna Circuit Malfunction - AutoCodes.com — B2470 2015 GMC Sierra Code - Cellular Phone Antenna Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B2470 2015 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 2015 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.

What does this mean?

Code Tech Notes

B2470:02 Cellular Phone Antenna Circuit Malfunction Short to Ground
B2470:04 Cellular Phone Antenna Circuit Malfunction Open Circuit

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2470 2015 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 2015 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 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B2470 in a 2015 GMC Sierra?

- Common symptoms include poor cellular reception or connectivity issues with the vehicle's hands-free calling system.

2. What could cause the Cellular Phone Antenna Circuit Malfunction in a 2015 GMC Sierra?

- The code B2470 can be triggered by a faulty cellular phone antenna, damaged antenna wiring, or a malfunctioning antenna control module.

3. How can I diagnose the Cellular Phone Antenna Circuit Malfunction in my GMC Sierra?

- Diagnosing this issue typically involves inspecting the antenna, checking the wiring connections, and using a scan tool to retrieve the specific fault code.

4. Can I still use my phone in the car if the B2470 code is present?

- While you may still be able to use your phone manually, the hands-free calling system may not function properly until the issue is resolved.

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

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to ensure proper functioning of the hands-free system.

6. How can I repair the Cellular Phone Antenna Circuit Malfunction in my GMC Sierra?

- Repair options may include replacing the faulty antenna, repairing damaged wiring, or resetting the antenna control module.

7. Can I reset the B2470 code myself, or do I need a professional?

- You can attempt to clear the code using an OBDII scanner, but it is advisable to have a professional diagnose and repair the underlying issue.

8. Will fixing the B2470 code improve my cellular reception in the vehicle?

- Yes, resolving the Cellular Phone Antenna Circuit Malfunction should help improve cellular reception and restore proper functionality to the hands-free calling system.

9. How much does it typically cost to fix the B2470 code in a 2015 GMC Sierra?

- The cost of repairs can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

10. Are there any preventive measures to avoid triggering the B2470 code in the future?

- Regularly inspecting the antenna system, ensuring proper maintenance, and promptly addressing any issues with the cellular phone antenna can help prevent the recurrence of this fault code.