Engine-CodesGMC – B1024 2016 GMC Sierra

B1024 2016 GMC Sierra Code - Circuit Board Temperature Sensor

Quick Answer

The B1024 diagnostic trouble code for a 2016 GMC Sierra specifically refers to an issue with the circuit board temperature sensor. Common causes include Sensor Failure: The circuit board temperature sensor itself may have failed due to normal wear and tear or electrical issues, Wiring Damage: Damage to the wiring connecting the sensor to the ECM can cause communication issues and trigger this code, Loose Connections: Loose or corroded connections between the sensor and the ECM can lead to faulty temperature readings. 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 2016 GMC Sierra indicates Circuit Board Temperature Sensor.
Common causes
Common causes include Sensor Failure: The circuit board temperature sensor itself may have failed due to normal wear and tear or electrical issues, Wiring Damage: Damage to the wiring connecting the sensor to the ECM can cause communication issues and trigger this code, Loose Connections: Loose or corroded connections between the sensor and the ECM can lead to faulty temperature readings.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code B1024 2016 GMC Sierra Description

The B1024 diagnostic trouble code for a 2016 GMC Sierra specifically refers to an issue with the circuit board temperature sensor. This sensor is responsible for monitoring the temperature of the circuit board within the vehicle's electronic control module (ECM). The ECM is a crucial component that controls various systems in the vehicle, such as fuel injection, ignition timing, and emissions control.

OBDII Code B1024 2016 GMC Sierra - Circuit Board Temperature Sensor
B1024 2016 GMC Sierra Code - Circuit Board Temperature Sensor

Common Causes of B1024 2016 GMC Sierra

  1. Sensor Failure: The circuit board temperature sensor itself may have failed due to normal wear and tear or electrical issues.
  2. Wiring Damage: Damage to the wiring connecting the sensor to the ECM can cause communication issues and trigger this code.
  3. Loose Connections: Loose or corroded connections between the sensor and the ECM can lead to faulty temperature readings.
  4. ECM Malfunction: In rare cases, the issue may stem from a malfunction within the ECM itself, affecting its ability to interpret sensor data accurately.

Symptoms of B1024 2016 GMC Sierra

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
  2. Erratic Engine Performance: The vehicle may experience rough idling, hesitation, or poor acceleration due to incorrect temperature readings being sent to the ECM.
  3. Decreased Fuel Efficiency: A malfunctioning circuit board temperature sensor can lead to the ECM not optimizing fuel delivery, resulting in decreased fuel efficiency.
  4. Engine Stalling: In severe cases, the vehicle may stall unexpectedly due to the ECM not receiving accurate temperature data.

How to Fix B1024 2016 GMC Sierra

  1. Diagnostic Scan: Begin by using a diagnostic scanner to retrieve the specific trouble code and confirm that the circuit board temperature sensor is the root cause of the issue.
  2. Sensor Replacement: Replace the faulty circuit board temperature sensor with a new, OEM-quality sensor to ensure accurate temperature readings.
  3. Wiring Inspection: Thoroughly inspect the wiring harness connecting the sensor to the ECM for any damage or corrosion. Repair or replace any damaged wiring as needed.
  4. Connection Check: Ensure that the connections between the sensor and the ECM are secure and free of debris or corrosion. Clean and tighten connections if necessary.
  5. Clear Codes: After completing the repair, clear the diagnostic trouble codes from the vehicle's ECM memory to reset the system and ensure the issue has been resolved.

Cost to Fix B1024 2016 GMC Sierra

The typical repair costs for addressing a B1024 code related to the circuit board temperature sensor in a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of parts for a new sensor and potential wiring repairs can range from $50 to $200. Labor costs at auto repair shops typically range from $80 to $150 per hour. The total repair cost could therefore fall between $150 and $500, depending on the extent of the repair work needed. It's advisable to check with local auto repair shops for more accurate estimates based on your location and vehicle specifics.

Tech Notes for B1024 2016 GMC Sierra

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.

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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 B1024 2016 GMC Sierra Code

1. What does the OBDII code B1024 mean on a 2016 GMC Sierra?

B1024 indicates an issue with the Circuit Board Temperature Sensor, which monitors the temperature of the control module’s circuit board.

2. What are the symptoms of a B1024 code on a 2016 GMC Sierra?

Common symptoms include erratic HVAC system performance, intermittent electrical issues, or no noticeable symptoms at all in some cases.

3. What causes the B1024 code to appear on a 2016 GMC Sierra?

The code is usually triggered by a faulty temperature sensor, a damaged circuit board, loose wiring, or a failing HVAC control module.

4. How is the B1024 code diagnosed on a 2016 GMC Sierra?

A technician will use a scan tool to confirm the code, inspect the circuit board and sensor, and check for damaged wiring or poor connections.

5. Can I drive my 2016 GMC Sierra with a B1024 code?

Yes, the vehicle is typically safe to drive, but the cause of the code should be addressed promptly to avoid further electrical or HVAC issues.

6. How do you fix a B1024 code on a 2016 GMC Sierra?

Repairs may involve replacing the circuit board temperature sensor, repairing damaged wiring, or replacing the HVAC control module if necessary.

7. How much does it cost to repair a B1024 code on a 2016 GMC Sierra?

Repair costs can range from $150 to $500, depending on whether the sensor, wiring, or control module needs replacement.

8. Can I clear the B1024 code without fixing the issue on my 2016 GMC Sierra?

While you can clear the code with an OBDII scanner, it will likely return if the underlying issue isn’t resolved.

9. Is the B1024 code covered under warranty for a 2016 GMC Sierra?

This depends on the vehicle’s warranty terms. If the issue is related to the HVAC control module, it may be covered under the powertrain or emissions warranty.

10. What tools are needed to troubleshoot a B1024 code on a 2016 GMC Sierra?

You’ll need an OBDII scanner, a multimeter to test wiring and sensors, and possibly a repair manual for detailed wiring diagrams.

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