AutoCodes – GMC – B269D 2017 GMC Sierra

B269D 2017 GMC Sierra Code - Heater Coolant Pump Control Circuit High

Quick Answer

The coolant heater pump is controlled by a relay. Common causes include Faulty Heater Coolant Pump, Heater Coolant Pump harness is open or shorted, Heater Coolant Pump 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: B269D 2017 GMC Sierra indicates Heater Coolant Pump Control Circuit High.
Common causes: Common causes include Faulty Heater Coolant Pump, Heater Coolant Pump harness is open or shorted, Heater Coolant Pump 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 342

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 29, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B269D 2017 GMC Sierra Description

The coolant heater pump is controlled by a relay. When operating conditions exist that require coolant flow when the engine is not operating, the Heating, Ventilation, and Air Conditioning (HVAC) control module turns ON the heater coolant pump by applying ground to the relay control circuit which energizes the heater coolant pump relay.

OBDII Code B269D 2017 GMC Sierra - Heater Coolant Pump Control Circuit High - AutoCodes.com — B269D 2017 GMC Sierra Code - Heater Coolant Pump Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B269D 2017 GMC Sierra?

Faulty Heater Coolant Pump
Heater Coolant Pump harness is open or shorted
Heater Coolant Pump circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC B269D 2017 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B269D 2017 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 B269D 2017 GMC Sierra code?

Need more information on how to fix the B269D 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B269D 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code B269D in a 2017 GMC Sierra related to the Heater Coolant Pump Control Circuit High?

- Common symptoms may include the heater not working properly, coolant temperature fluctuations, and potential overheating issues.

2. What are the possible causes of OBDII code B269D in a 2017 GMC Sierra?

- The code B269D may be triggered by a faulty heater coolant pump, issues with the coolant pump control circuit, wiring problems, or a malfunctioning control module.

3. How can I diagnose the Heater Coolant Pump Control Circuit High issue in my 2017 GMC Sierra?

- Diagnosing the problem may involve checking the coolant pump for proper operation, inspecting the wiring and connections for damage, and using a diagnostic scanner to retrieve the specific error codes.

4. Can I drive my 2017 GMC Sierra with OBDII code B269D active?

- It is not recommended to drive your vehicle with an active B269D code, as it can lead to potential cooling system issues and possible engine damage due to overheating.

5. How can I repair OBDII code B269D in my 2017 GMC Sierra?

- Repairing the B269D code may involve replacing a faulty heater coolant pump, repairing damaged wiring, or recalibrating the control module to resolve the high circuit issue.

6. Are there any DIY tips for fixing the Heater Coolant Pump Control Circuit High problem in a 2017 GMC Sierra?

- While some basic troubleshooting steps can be taken, it is recommended to consult a professional mechanic for accurate diagnosis and repair of the B269D OBDII code.

7. Is the Heater Coolant Pump Control Circuit High issue covered under warranty for a 2017 GMC Sierra?

- Depending on the specific warranty coverage, the repair for the B269D code may be covered if it is deemed a manufacturer defect or falls within the warranty period.

8. What is the typical cost to repair OBDII code B269D in a 2017 GMC Sierra?

- The cost of repairing the B269D code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

9. Can ignoring OBDII code B269D in a 2017 GMC Sierra cause further damage?

- Ignoring the B269D code can result in potential cooling system problems, overheating issues, and damage to engine components, leading to more costly repairs down the line.

10. How often does the Heater Coolant Pump Control Circuit High problem occur in 2017 GMC Sierra vehicles?

- While the B269D code related to the heater coolant pump control circuit high is not extremely common, it can still occur due to various factors affecting the vehicle's cooling system.