B2467 – OBD-II DTC

OBD-II DTC B2467 – Aux Heater Cool Down Time Exceeded (may be con to a453-5 )

DTC B2467 meaning

DTC B2467 refers to an issue with the auxiliary heater in a vehicle, specifically indicating that the cool down time for the auxiliary heater has been exceeded. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components and systems within the vehicle to ensure they are functioning correctly. The auxiliary heater is typically used to provide additional heating to the cabin, especially in cold weather conditions.

DTC B2467 symptoms

Common symptoms associated with DTC B2467 may include:

• Increased cabin temperature or overheating
• Auxiliary heater not functioning properly
• Warning lights illuminated on the dashboard
• Reduced fuel efficiency
• Unusual noises from the auxiliary heater

DTC B2467 causes

Several factors can lead to the triggering of DTC B2467, including:

• Faulty auxiliary heater control module
• Malfunctioning temperature sensors
• Blocked or restricted coolant flow
• Electrical issues such as short circuits or open circuits
• Software glitches in the vehicle’s control system

DTC B2467 seriousness

The seriousness of DTC B2467 can vary depending on the specific symptoms and the vehicle’s overall condition. While it may not pose an immediate safety risk, it can lead to:

• Increased wear on the auxiliary heater components
• Potential overheating issues
• Reduced comfort for passengers in cold weather
• Increased emissions and reduced fuel efficiency

How to diagnose DTC B2467

To diagnose DTC B2467, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Check for any additional trouble codes that may provide more context.
3. Inspect the auxiliary heater and its components for visible damage or wear.
4. Test the temperature sensors for proper operation.
5. Examine the wiring and connectors for signs of corrosion or damage.
6. Check the coolant level and flow to ensure there are no blockages.
7. Review the vehicle’s service history for any previous related repairs.

How to fix DTC B2467 step-by-step instructions

To fix DTC B2467, follow these step-by-step instructions:

1. Clear the DTC using an OBD-II scanner.
2. Perform a visual inspection of the auxiliary heater and its components.
3. Replace any damaged or faulty components, such as the control module or sensors.
4. Flush the cooling system to remove any blockages.
5. Ensure all electrical connections are secure and free from corrosion.
6. Test the auxiliary heater operation after repairs.
7. Re-scan the vehicle to ensure the DTC does not return.

How to erase DTC B2467

To erase DTC B2467, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the vehicle’s ignition without starting the engine.
3. Navigate to the trouble codes section on the scanner.
4. Select the option to clear or erase the codes.
5. Confirm the action and wait for the scanner to complete the process.
6. Disconnect the scanner and start the vehicle to check for any reoccurring codes.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.