AutoCodes – Chevrolet – B269D 2018 Chevrolet Silverado

B269D 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 304

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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Heater Coolant Pump Control Circuit High - AutoCodes.com — B269D 2018 Chevrolet Silverado Code - Heater Coolant Pump Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B269D 2018 Chevrolet Silverado?

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 2018 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 B269D 2018 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 B269D 2018 Chevrolet Silverado code?

Need more information on how to fix the B269D 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B269D 2018 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 B269D 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code B269D on a 2018 Chevrolet Silverado?

The common symptoms of OBDII code B269D on a 2018 Chevrolet Silverado include the check engine light being illuminated, reduced heater performance, and potential overheating issues.

2. What does the OBDII code B269D Heater Coolant Pump Control Circuit High mean?

The OBDII code B269D indicates a high voltage condition in the control circuit of the heater coolant pump in a 2018 Chevrolet Silverado.

3. What are the possible causes of OBDII code B269D on a 2018 Chevrolet Silverado?

Possible causes of OBDII code B269D on a 2018 Chevrolet Silverado include a faulty heater coolant pump, damaged wiring or connectors in the control circuit, or a malfunctioning control module.

4. How can I diagnose the OBDII code B269D on a 2018 Chevrolet Silverado?

Diagnosing the OBDII code B269D on a 2018 Chevrolet Silverado involves checking the heater coolant pump, inspecting the wiring and connectors in the control circuit, and using a diagnostic scanner to read the code and perform further tests.

5. What are the repair options for OBDII code B269D on a 2018 Chevrolet Silverado?

Repair options for OBDII code B269D on a 2018 Chevrolet Silverado may include replacing the heater coolant pump, repairing or replacing damaged wiring or connectors, or reprogramming the control module.

6. Can I continue driving my 2018 Chevrolet Silverado with OBDII code B269D?

It is not recommended to continue driving a 2018 Chevrolet Silverado with OBDII code B269D, as it can lead to further damage to the cooling system and potential overheating issues.

7. How much does it typically cost to repair OBDII code B269D on a 2018 Chevrolet Silverado?

The cost of repairing OBDII code B269D on a 2018 Chevrolet Silverado can vary depending on the exact cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.

8. Is OBDII code B269D a common issue in 2018 Chevrolet Silverado vehicles?

While OBDII code B269D may not be extremely common, it is a known issue that can occur in 2018 Chevrolet Silverado vehicles, especially as they age and components wear out.

9. Can I reset the OBDII code B269D on my 2018 Chevrolet Silverado by disconnecting the battery?

While disconnecting the battery may temporarily clear the code, it is not a recommended method for addressing the root cause of OBDII code B269D on a 2018 Chevrolet Silverado. It is best to diagnose and repair the issue properly.

10. How can I prevent OBDII code B269D from appearing on my 2018 Chevrolet Silverado?

To prevent OBDII code B269D on a 2018 Chevrolet Silverado, it is important to perform regular maintenance on the cooling system, address any cooling system issues promptly, and follow the manufacturer's recommended service intervals.