AutoCodesCadillac – B269D Cadillac

B269D Cadillac 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 Cadillac 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 715
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 29, 2023
💬 Need more help? Ask Coddy for instant answers — it's free!

Code B269D Cadillac 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 Cadillac - Heater Coolant Pump Control Circuit High - AutoCodes.com
B269D Cadillac Code - Heater Coolant Pump Control Circuit High

What are the Possible Causes of the DTC B269D Cadillac?

  • 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 Cadillac?

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 Cadillac 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 Cadillac code?

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

Need Help with the Code?

Get the B269D Cadillac 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 Cadillac Code

1. What does the OBDII code B269D mean on a Cadillac?

This code indicates a problem with the Heater Coolant Pump Control Circuit, specifically a high voltage condition.

2. What are the common symptoms of code B269D?

Symptoms may include reduced cabin heating, warning lights on the dashboard, and possible overheating of the engine.

3. What causes the B269D code to appear?

The code can be caused by a faulty heater coolant pump, wiring issues such as shorts or opens, or a malfunctioning control module.

4. Can I drive my car with code B269D active?

It’s not recommended as improper coolant circulation could lead to overheating and potential engine damage.

5. How do I diagnose the B269D code?

Start by inspecting the heater coolant pump and its wiring for damage, testing circuit continuity, and checking the control module for faults.

6. How can I fix the B269D code on my Cadillac?

Repairs may involve replacing the heater coolant pump, repairing damaged wiring, or reprogramming/replacing the control module.

7. How much does it cost to fix code B269D?

Repair costs vary but can range from $200 to $800 depending on whether the pump, wiring, or control module needs replacement.

8. Is this code specific to Cadillacs?

The code B269D is manufacturer-specific and typically applies to Cadillac vehicles.

9. Can a low coolant level cause code B269D?

Low coolant levels are unlikely to directly cause this code but can lead to overheating and exacerbate related issues.

10. Will clearing the B269D code fix the problem?

Clearing the code will remove it temporarily, but the underlying issue must be repaired to prevent it from returning.

Discuss the causes and fixes for B269D Cadillac OBDII Code

Code B269D Cadillac comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play