AutoCodes – Chevrolet – B2476 Chevrolet

B2476 Chevrolet Code - Cellular Phone Select Service Switch

Quick Answer

The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center, and OnStar® Emergency. Common causes include Faulty Inside Rearview Mirror, Inside Rearview Mirror harness is open or shorted, Inside Rearview Mirror 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: B2476 Chevrolet indicates Cellular Phone Select Service Switch.
Common causes: Common causes include Faulty Inside Rearview Mirror, Inside Rearview Mirror harness is open or shorted, Inside Rearview Mirror 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 12,923

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 B2476 Chevrolet Description

The OnStar® button assembly consists of 3 buttons: Call/Answer, OnStar® Call Center, and OnStar® Emergency. The Telematics Communication Interface Control Module supplies the OnStar® button assembly with 10 V via the 10 V reference circuit. When pressed, each button completes the circuit across a resistor or set of resistors allowing a specific voltage to be returned to the Telematics Communication Interface Control Module over the signal circuit. Depending upon the voltage range returned, the Telematics Communication Interface Control Module is able to identify which button has been pressed. The Diagnostic Trouble Code (DTC) will be set when the Telematics Communication Interface Control Module detects a failure on the 10 V reference circuit.

OBDII Code B2476 Chevrolet - Cellular Phone Select Service Switch - AutoCodes.com — B2476 Chevrolet Code - Cellular Phone Select Service Switch

What does this mean?

What are the Possible Causes of the DTC B2476 Chevrolet?

Faulty Inside Rearview Mirror
Inside Rearview Mirror harness is open or shorted
Inside Rearview Mirror circuit poor electrical connection
Faulty Telematics Communication Interface Control Module

How to Fix the DTC B2476 Chevrolet?

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

B2476:04 Cellular Phone Select Service Switch Open
B2476:59 Cellular Phone Select Service Switch Protection Time-out

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2476 Chevrolet 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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Need Help with the Code?

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Information for Specific Chevrolet Models

B2476 2014 Chevrolet Silverado — Cellular Phone Select Service Switch
B2476 2015 Chevrolet Silverado — Cellular Phone Select Service Switch
B2476 2016 Chevrolet Silverado — Cellular Phone Select Service Switch
B2476 2017 Chevrolet Silverado — Cellular Phone Select Service Switch
B2476 2018 Chevrolet Silverado — Cellular Phone Select Service Switch

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 B2476 Chevrolet Code

1. What are the common symptoms of OBDII code B2476 in a Chevrolet related to the Cellular Phone Select Service Switch?

- The common symptoms include issues with the cellular phone connectivity system, such as difficulty pairing the phone or loss of connection.

2. What could cause the OBDII code B2476 in a Chevrolet related to the Cellular Phone Select Service Switch?

- This code is usually triggered by a malfunction in the cellular phone select service switch or a fault in the wiring/connectors associated with the system.

3. How can I diagnose the cause of OBDII code B2476 in my Chevrolet related to the Cellular Phone Select Service Switch?

- A thorough inspection of the cellular phone select service switch, wiring, and connectors is recommended to diagnose the issue. Checking for loose connections or physical damage is crucial.

4. Can I repair OBDII code B2476 in my Chevrolet related to the Cellular Phone Select Service Switch on my own?

- Depending on your automotive repair skills, you may be able to repair this issue on your own by replacing the faulty cellular phone select service switch or repairing any damaged wiring/connectors.

5. Are there any troubleshooting tips for OBDII code B2476 in a Chevrolet related to the Cellular Phone Select Service Switch?

- Before replacing any components, it's advisable to reset the system by disconnecting the battery for a few minutes. This may sometimes resolve the issue if it was triggered by a temporary glitch.

6. Is it safe to continue driving my Chevrolet with OBDII code B2476 related to the Cellular Phone Select Service Switch?

- While the code itself may not directly impact the drivability of the vehicle, it's best to address the issue promptly to ensure the proper functioning of the cellular phone connectivity system.

7. Can a faulty cellular phone select service switch cause other issues in my Chevrolet besides triggering OBDII code B2476?

- Yes, a malfunctioning cellular phone select service switch can potentially cause issues with other vehicle systems that rely on its functionality, such as hands-free calling features.

8. How do I know if the cellular phone select service switch in my Chevrolet needs to be replaced?

- If thorough inspection and testing reveal that the switch is not functioning correctly or if there is visible damage, it's advisable to replace the cellular phone select service switch.

9. Are there any recalls or technical service bulletins related to OBDII code B2476 in Chevrolet vehicles with regards to the Cellular Phone Select Service Switch?

- It's recommended to check with a Chevrolet dealership or online resources for any known recalls or technical service bulletins specific to this issue to see if your vehicle is affected.

10. Can a professional automotive technician help me diagnose and repair OBDII code B2476 in my Chevrolet related to the Cellular Phone Select Service Switch?

- Yes, seeking the assistance of a qualified automotive technician or dealership service department is advisable if you're unsure about diagnosing or repairing this issue on your own.