B2470 2017 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 2017 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.
Code B2470 2017 GMC Sierra Description
What are the Possible Causes of the DTC B2470 2017 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 2017 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
B2470:04 Cellular Phone Antenna Circuit Malfunction Open Circuit
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2470 2017 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 2017 GMC Sierra code?
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Need Help with the Code?
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Frequently Asked Questions about B2470 2017 GMC Sierra Code
1. What does OBDII code B2470 mean on a 2017 GMC Sierra?
Code B2470 indicates a malfunction in the cellular phone antenna circuit, which can affect vehicle communication systems.
2. What are the symptoms of code B2470 in a 2017 GMC Sierra?
Symptoms may include poor cellular connectivity, OnStar system malfunctions, or a warning light on the dashboard.
3. What causes the B2470 code to appear?
Common causes include a damaged or disconnected cellular antenna, faulty wiring, or a malfunctioning telematics control module.
4. Can a faulty cellular phone antenna trigger code B2470?
Yes, a defective or damaged cellular phone antenna is one of the primary causes of this code.
5. How can I diagnose the B2470 code on my 2017 GMC Sierra?
Check the cellular antenna for physical damage, inspect wiring and connections for faults, and use a scan tool to verify the code and related data.
6. Is it safe to drive with a B2470 code active?
Yes, the vehicle is safe to drive, but features like OnStar or built-in cellular services may not function properly.
7. How do I fix the B2470 code on a 2017 GMC Sierra?
Repairs may include replacing a damaged antenna, repairing faulty wiring, or reprogramming or replacing the telematics control module.
8. Can a software update resolve code B2470?
In some cases, reprogramming the telematics control module with updated software can resolve the issue.
9. How much does it cost to repair code B2470 on a 2017 GMC Sierra?
Repair costs vary but typically range from $100 to $500, depending on whether the antenna or control module needs repair or replacement.
10. Can extreme weather cause code B2470 to appear?
Yes, extreme weather conditions, such as heavy rain or snow, can damage the antenna or its wiring, leading to this code.
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