AutoCodes – GMC – B1024 2018 GMC Sierra

B1024 2018 GMC Sierra Code - Circuit Board Temperature Sensor

Quick Answer

The internal module circuitry temperature is monitored. Common causes include Faulty Radio, Faulty Audio Amplifier (If equipped), Faulty Human Machine Interface Control Module (If equipped). 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: B1024 2018 GMC Sierra indicates Circuit Board Temperature Sensor.
Common causes: Common causes include Faulty Radio, Faulty Audio Amplifier (If equipped), Faulty Human Machine Interface Control Module (If equipped).
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 184

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 Apr 06, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B1024 2018 GMC Sierra Description

The internal module circuitry temperature is monitored. If an over-heat condition that exceeds the maximum threshold of the internal circuitry or a malfunctioning temperature sensor is detected, the module will shut down until the internal circuitry cools. The Diagnostic Trouble Code (DTC) will be set when the module detects an over-heat condition or a malfunctioning sensor.

OBDII Code B1024 2018 GMC Sierra - Circuit Board Temperature Sensor - AutoCodes.com — B1024 2018 GMC Sierra Code - Circuit Board Temperature Sensor

What does this mean?

What are the Possible Causes of the DTC B1024 2018 GMC Sierra?

Faulty Radio
Faulty Audio Amplifier (If equipped)
Faulty Human Machine Interface Control Module (If equipped)

How to Fix the DTC B1024 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

Extended use of extremely high volume, especially in warm weather conditions, may cause this Diagnostic Trouble Code (DTC) to be set in the Control module. Under these conditions, it may be normal for this DTC to be set to prevent permanent damage to the Control module circuitry and no repair should be attempted.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1024 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 B1024 2018 GMC Sierra code?

Need more information on how to fix the B1024 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1024 2018 GMC Sierra 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 B1024 2018 GMC Sierra Code

1. What does the OBDII code B1024 mean on a 2018 GMC Sierra?

The code B1024 indicates an issue with the Circuit Board Temperature Sensor, which monitors the temperature of an electronic control module.

2. What are common symptoms of code B1024 on a 2018 GMC Sierra?

Symptoms may include erratic HVAC operation, malfunctioning controls, or warning lights on the dashboard.

3. What causes the B1024 code to appear on a GMC Sierra?

Common causes include a faulty temperature sensor, wiring issues, corrosion on connectors, or a malfunctioning control module.

4. Can I still drive my 2018 GMC Sierra with code B1024?

Yes, you can usually drive the vehicle, but related systems like HVAC may not function properly.

5. How is the B1024 code diagnosed on a GMC Sierra?

A technician will use a diagnostic scanner to confirm the code, then inspect the sensor, wiring, and connectors for damage or faults.

6. How do you fix code B1024 on a 2018 GMC Sierra?

Repairs may involve replacing the circuit board temperature sensor, repairing damaged wiring, or cleaning corroded connectors.

7. Where is the circuit board temperature sensor located on a 2018 GMC Sierra?

The sensor is typically integrated into the control module or HVAC system, depending on the specific configuration.

8. What tools are needed to troubleshoot code B1024?

Diagnostic tools like an OBDII scanner, a multimeter for testing circuits, and basic hand tools are commonly used.

9. How much does it cost to fix code B1024 on a GMC Sierra?

Repair costs can range from $100 to $500, depending on whether the issue is with the sensor, wiring, or module.

10. Can a software update resolve the B1024 code on a 2018 GMC Sierra?

In some cases, a software update for the control module may fix the issue if it is related to programming errors.

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