AutoCodes – GMC – B2470 2018 GMC Sierra

B2470 2018 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 2018 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 223

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 2018 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 2018 GMC Sierra - Cellular Phone Antenna Circuit Malfunction - AutoCodes.com — B2470 2018 GMC Sierra Code - Cellular Phone Antenna Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B2470 2018 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 2018 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 2018 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 2018 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 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code B2470 in a 2018 GMC Sierra?

The common symptoms of OBDII code B2470 (Cellular Phone Antenna Circuit Malfunction) in a 2018 GMC Sierra may include issues with the vehicle's cellular phone connectivity, poor reception, or a malfunctioning GPS system.

2. What are the possible causes of OBDII code B2470 in a 2018 GMC Sierra?

Possible causes of OBDII code B2470 in a 2018 GMC Sierra include a faulty cellular phone antenna, damaged wiring or connectors related to the cellular phone antenna circuit, or a malfunction in the vehicle's communication system.

3. How can I diagnose the Cellular Phone Antenna Circuit Malfunction in my 2018 GMC Sierra?

Diagnosing OBDII code B2470 in a 2018 GMC Sierra involves inspecting the cellular phone antenna and its connections for any physical damage, checking the wiring for continuity, and using a diagnostic scanner to identify the specific area of the malfunction.

4. Can I repair the Cellular Phone Antenna Circuit Malfunction in my 2018 GMC Sierra myself?

Depending on the exact cause of the malfunction, some repairs related to OBDII code B2470 in a 2018 GMC Sierra, such as replacing a faulty antenna or repairing damaged wiring, may be possible for DIY enthusiasts with the right tools and knowledge.

5. Is it safe to continue driving my 2018 GMC Sierra with OBDII code B2470?

While OBDII code B2470 (Cellular Phone Antenna Circuit Malfunction) may not directly affect the drivability of your 2018 GMC Sierra, it is recommended to address the issue promptly to ensure proper functioning of the vehicle's communication systems.

6. Will resetting the OBDII code B2470 in my 2018 GMC Sierra make it go away permanently?

Resetting the OBDII code B2470 in a 2018 GMC Sierra may temporarily clear the error code, but if the underlying issue causing the Cellular Phone Antenna Circuit Malfunction is not fixed, the code is likely to reappear.

7. Can extreme weather conditions cause OBDII code B2470 to trigger in a 2018 GMC Sierra?

Extreme weather conditions, such as heavy rain or extreme temperatures, may potentially affect the performance of the cellular phone antenna circuit in a 2018 GMC Sierra and contribute to the triggering of OBDII code B2470.

8. How much does it typically cost to repair OBDII code B2470 in a 2018 GMC Sierra at a mechanic or dealership?

The cost of repairing OBDII code B2470 in a 2018 GMC Sierra can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can add up to a few hundred dollars.

9. Are there any recalls or technical service bulletins related to OBDII code B2470 in 2018 GMC Sierra models?

It's recommended to check with a GMC dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or technical service bulletins related to OBDII code B2470 in 2018 GMC Sierra models.

10. Can I prevent OBDII code B2470 from occurring in my 2018 GMC Sierra?

To prevent OBDII code B2470 (Cellular Phone Antenna Circuit Malfunction) in a 2018 GMC Sierra, regular maintenance checks, ensuring proper installation of accessories that may interfere with the cellular phone antenna, and addressing any communication system issues promptly can help reduce the likelihood of this code triggering.