AutoCodes – Generic – B2470:02

B2470:02 Code - Cellular Phone Antenna Circuit Malfunction Short to Ground

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: B2470:02 indicates Cellular Phone Antenna Circuit Malfunction Short to Ground.
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 410

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 B2470:02 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 short to ground on the cellular antenna signal circuit.

OBDII Code B2470:02 - Cellular Phone Antenna Circuit Malfunction Short to Ground - AutoCodes.com — B2470:02 Code - Cellular Phone Antenna Circuit Malfunction Short to Ground

What does this mean?

What are the Possible Causes of the DTC B2470:02?

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 B2470:02?

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 B2470:02 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.

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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 B2470:02 Code

What does OBDII code B2470:02 mean?

Code B2470:02 indicates a malfunction in the cellular phone antenna circuit, specifically a short to ground condition.

What are the common symptoms of code B2470:02?

Symptoms may include poor cellular signal reception, inability to use connected phone features, or error messages related to the communication system.

What causes the B2470:02 code?

Common causes include damaged wiring, a faulty cellular phone antenna, or a short circuit in the antenna's electrical system.

Can I still drive my vehicle with this code?

Yes, the code does not affect drivability, but it may limit cellular connectivity features in your vehicle, such as hands-free calling or emergency services.

How do I diagnose the B2470:02 code?

Start by inspecting the antenna wiring and connectors for damage or shorts. Use a multimeter to check for continuity and grounding issues in the circuit.

How can I fix the B2470:02 code?

Repairs may involve replacing damaged wiring, repairing connectors, or replacing the cellular phone antenna if it is defective.

How much does it cost to fix code B2470:02?

Repair costs can vary, but diagnosing and fixing wiring issues may cost $100-$300, while replacing the antenna may range from $150-$500 depending on the vehicle and part.

Can a faulty antenna cause other issues besides code B2470:02?

Yes, it may result in degraded cellular connectivity, slower data transmission, or failure of features like remote vehicle access or emergency calling.

How can I prevent code B2470:02 from occurring again?

Regularly inspect your vehicle’s wiring for damage and ensure that the antenna and connectors are secure and free from corrosion or wear.

Do I need specialized tools to repair the cellular phone antenna circuit?

Basic tools like a multimeter and wiring repair kits should be sufficient, but advanced diagnostic tools may be needed for complex electronic systems.