AutoCodes – Chevrolet – B123E 2015 Chevrolet Silverado

B123E 2015 Chevrolet Silverado Code - Radio Keypad Button Signal Circuit

Quick Answer

The radio controls communicate radio control inputs directly to the radio through a discrete circuit for volume up, volume down, and power button. Common causes include Faulty Radio Controls, Radio Controls harness is open or shorted, Radio Controls circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B123E 2015 Chevrolet Silverado indicates Radio Keypad Button Signal Circuit.
Common causes: Common causes include Faulty Radio Controls, Radio Controls harness is open or shorted, Radio Controls circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 199

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B123E 2015 Chevrolet Silverado Description

The radio controls communicate radio control inputs directly to the radio through a discrete circuit for volume up, volume down, and power button. It also uses a series of resistors through a signal circuit when the home, seek up, seek down and phone buttons are pressed. After receiving the message, the radio will perform the requested function. Messages communicated between the radio and the radio controls include the following: Button presses/knob rotations, Commands for the state of indicators, and Controls back-lighting. The Diagnostic Trouble Code (DTC) will be set when the radio detects an open/high resistance, short to voltage, or short to ground on the radio controls key signal circuit.

OBDII Code B123E 2015 Chevrolet Silverado - Radio Keypad Button Signal Circuit - AutoCodes.com — B123E 2015 Chevrolet Silverado Code - Radio Keypad Button Signal Circuit

What does this mean?

What are the Possible Causes of the DTC B123E 2015 Chevrolet Silverado?

Faulty Radio Controls
Radio Controls harness is open or shorted
Radio Controls circuit poor electrical connection
Faulty Radio

How to Fix the DTC B123E 2015 Chevrolet Silverado?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B123E 2015 Chevrolet Silverado 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 B123E 2015 Chevrolet Silverado code?

Need more information on how to fix the B123E 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B123E 2015 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

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 B123E 2015 Chevrolet Silverado Code

1. What does the OBDII code B123E mean on a 2015 Chevrolet Silverado?

The code B123E indicates an issue with the Radio Keypad Button Signal Circuit, meaning the system has detected a fault in the circuit responsible for transmitting signals from the radio keypad buttons.

2. What are the common symptoms of a B123E code?

Common symptoms include unresponsive radio keypad buttons, intermittent functionality of the radio controls, or no control over specific radio features.

3. What causes the B123E code to appear?

This code can be caused by a faulty radio keypad, damaged wiring or connectors in the signal circuit, or a malfunctioning radio control module.

4. How do I diagnose the B123E code on my Silverado?

Start by inspecting the radio keypad and associated wiring for damage, loose connections, or corrosion. Use a multimeter to test the circuit for continuity and verify the signal output.

5. Can a software update fix the B123E code?

In some cases, a software update for the radio control module may resolve the issue if it is related to a programming glitch. Check with the dealership for available updates.

6. How can I fix the B123E code on my 2015 Chevrolet Silverado?

Repairs may include replacing a faulty radio keypad, repairing or replacing damaged wiring, or replacing the radio control module if it is defective.

7. Is the B123E code serious?

While it does not affect the drivability of the vehicle, the B123E code can be an inconvenience as it impairs radio functionality. It should be addressed to restore proper operation.

8. Can I clear the B123E code without fixing the issue?

Clearing the code without repairing the underlying issue may result in the code returning. Proper diagnosis and repair are necessary to resolve the problem.

9. How much does it typically cost to fix the B123E code?

The cost can vary depending on the root cause. Replacing a radio keypad may cost $50â€“$150, while repairing wiring or replacing the radio module could cost $200â€“$500 or more.

10. Can I fix the B123E code myself?

If you have basic electrical knowledge and tools, you can inspect and repair wiring or replace the radio keypad yourself. For more complex issues, professional assistance is recommended.