AutoCodes – Generic – B269A

B269A Code - Heater Coolant Pump Control Circuit Open

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: B269A indicates Heater Coolant Pump Control Circuit Open.
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 5,709

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 B269A 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 B269A - Heater Coolant Pump Control Circuit Open - AutoCodes.com — B269A Code - Heater Coolant Pump Control Circuit Open

What does this mean?

What are the Possible Causes of the DTC B269A?

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 B269A?

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 B269A 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 B269A code?

Need more information on how to fix the B269A code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B269A code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B269A Buick — Heater Coolant Pump Control Circuit Open
B269A Cadillac — Heater Coolant Pump Control Circuit Open
B269A Chevrolet — Heater Coolant Pump Control Circuit Open
B269A GMC — Heater Coolant Pump Control Circuit Open

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 B269A Code

1. What are common symptoms of OBDII code B269A (Heater Coolant Pump Control Circuit Open)?

- Common symptoms include the engine overheating, lack of cabin heat, and a possible check engine light.

2. What causes the OBDII code B269A (Heater Coolant Pump Control Circuit Open)?

- Possible causes can include a faulty heater coolant pump, damaged wiring or connectors in the control circuit, or a problem with the control module.

3. How can I diagnose the issue related to OBDII code B269A?

- Use a scan tool to retrieve the code, inspect the wiring and connectors for any visible damage, and test the heater coolant pump for proper function.

4. What are the repair options for OBDII code B269A?

- Repair options may include replacing the faulty heater coolant pump, repairing damaged wiring or connectors, or reprogramming the control module.

5. Can I continue driving with OBDII code B269A present?

- It is not recommended to continue driving with this code as it can lead to engine overheating and potential damage.

6. How much does it typically cost to repair OBDII code B269A?

- The cost of repair can vary depending on the specific issue, but it may range from $100 to $500 or more, including parts and labor.

7. Can I reset the OBDII code B269A without fixing the issue?

- While you can clear the code with a scan tool, it is important to address the underlying issue to prevent further damage to the vehicle.

8. Is it safe to attempt DIY repairs for OBDII code B269A?

- DIY repairs may be possible for those with automotive repair experience, but it is recommended to consult a professional mechanic for accurate diagnosis and repair.

9. How long does it take to fix OBDII code B269A?

- The repair time can vary depending on the specific issue and the expertise of the mechanic, but it may take a few hours to half a day to complete.

10. Are there any preventive measures to avoid OBDII code B269A in the future?

- Regular maintenance of the cooling system, including checking the heater coolant pump and related components, can help prevent issues leading to this OBDII code.