Engine-CodesGMC – B269D 2016 GMC Sierra

B269D 2016 GMC Sierra Code - Heater Coolant Pump Control Circuit High

Quick Answer

The B269D diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the heater coolant pump control circuit being too high. Common causes include Faulty heater coolant pump, Wiring issues in the control circuit, Malfunctioning PCM. 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 2016 GMC Sierra indicates Heater Coolant Pump Control Circuit High.
Common causes
Common causes include Faulty heater coolant pump, Wiring issues in the control circuit, Malfunctioning PCM.
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 17, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
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

Code B269D 2016 GMC Sierra Description

The B269D diagnostic trouble code (DTC) for a 2016 GMC Sierra indicates a problem with the heater coolant pump control circuit being too high. This code is typically related to the vehicle's heating and cooling system, specifically the coolant pump that helps regulate the temperature of the engine. The heater coolant pump is responsible for circulating coolant through the engine and the heater core, ensuring that the engine operates at the optimal temperature and that the cabin is heated effectively.

OBDII Code B269D 2016 GMC Sierra - Heater Coolant Pump Control Circuit High
B269D 2016 GMC Sierra Code - Heater Coolant Pump Control Circuit High

Common Causes of B269D 2016 GMC Sierra

  1. Faulty heater coolant pump
  2. Wiring issues in the control circuit
  3. Malfunctioning PCM
  4. Faulty coolant temperature sensor
  5. Corrosion or damage to electrical connectors

Symptoms of B269D 2016 GMC Sierra

  1. Engine overheating
  2. Inadequate heating in the cabin
  3. Check Engine Light illuminated
  4. Poor engine performance
  5. Increased fuel consumption

How to Fix B269D 2016 GMC Sierra

  1. Begin by conducting a visual inspection of the heater coolant pump and the control circuit wiring to check for any visible damage or corrosion.
  2. Test the heater coolant pump and the coolant temperature sensor using a multimeter to determine if they are functioning properly.
  3. Check the PCM for any error codes related to the heater coolant pump control circuit and address any issues found.
  4. Replace any faulty components, such as the heater coolant pump, coolant temperature sensor, or damaged wiring.
  5. Clear the DTC from the PCM memory and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix B269D 2016 GMC Sierra

The cost of repairing a heater coolant pump control circuit high issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary widely, typically ranging from $80 to $150 per hour. Additionally, the cost of parts can vary based on the make and model of the vehicle. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.

Need more information about the B269D 2016 GMC Sierra code?

Need more information on how to fix the B269D 2016 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B269D 2016 GMC Sierra 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 2016 GMC Sierra Code

What does the OBDII code B269D mean on a 2016 GMC Sierra?

The B269D code indicates a problem with the Heater Coolant Pump Control Circuit, specifically that the circuit voltage is higher than expected.

What are the common symptoms of the B269D code?

Symptoms may include reduced or no cabin heat, an illuminated check engine light, or poor engine cooling performance in certain conditions.

What causes the B269D code to appear?

Possible causes include a faulty heater coolant pump, damaged wiring or connectors in the control circuit, or a malfunctioning control module.

Can I drive my 2016 GMC Sierra with the B269D code active?

While the truck may still be drivable, reduced cabin heating or cooling performance could occur, and ignoring the problem may lead to further damage.

How do I diagnose the B269D code?

Diagnosis typically involves inspecting the heater coolant pump, checking for damaged wiring, testing the circuit voltage, and using a scan tool to verify related data.

What tools are needed to fix the B269D code?

You may need a multimeter, a reliable scan tool, wiring repair tools, and possibly replacement parts like a heater coolant pump or connectors.

How much does it cost to repair the B269D code?

Repair costs vary, but replacing a heater coolant pump typically costs between $200 and $500, depending on parts and labor.

Can a faulty thermostat trigger the B269D code?

A faulty thermostat is unlikely to cause this code, as it specifically relates to the heater coolant pump control circuit.

Does clearing the code with a scan tool fix the problem?

Clearing the code may turn off the check engine light temporarily, but the issue will return unless the underlying problem is resolved.

Should I take my 2016 GMC Sierra to a mechanic for the B269D code?

If you're unsure how to diagnose or repair the issue, it’s recommended to consult a qualified mechanic to prevent further complications.

Discuss the causes and fixes for B269D 2016 GMC Sierra OBDII Code

Code B269D 2016 GMC Sierra comments

No comments found for this page.