• Heating system not working
• Check engine light on
• Possible other climate control issues
• Faulty Auxiliary Heater Control Module
• Wiring issues such as open or short circuits
• Faulty connections or connectors
ECU: Engine Control Unit, the main computer in the vehicle.
OBD-II: On-Board Diagnostics, a standardized system in vehicles for self-diagnostics and reporting.
• U0263
• U0264
Your car is trying to talk to a part called the 'AUX Heater Control Module,' but it can't hear it. It's like trying to call a friend on the phone, but they don't pick up.
The vehicle's computer is unable to communicate with the Auxiliary Heater Control Module.
OBD-II code U0262 indicates a lost communication with the Auxiliary Heater Control Module. This means the main computer (ECU) is unable to receive or send messages to this module, which could affect the heating system's operation.
• Check for other related codes
• Inspect wiring and connectors to the module
• Test the Auxiliary Heater Control Module
• Repair or replace faulty wiring or connectors
• Replace the Auxiliary Heater Control Module if necessary
• Clear the codes and test the system
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly inspect and maintain vehicle wiring
• Ensure connectors are clean and secure
• Schedule regular vehicle check-ups
Communication Error
• Have a professional diagnose the issue if you're not experienced with car electronics.
• Avoid using the heating system until the issue is resolved to prevent further damage.
Check with your vehicle manufacturer for warranty coverage on electronic components.
Communication errors like U0262 have become more common as vehicles incorporate more electronic modules.
Moderate – While the car may still run, the heating system might be affected, which can be uncomfortable in cold weather.
Ignoring this code could lead to discomfort or further issues with the vehicle's climate control system.
• Vehicle in a safe, stationary position
• Ignition in the ON position
The Auxiliary Heater Control Module is typically located near the vehicle's heating system, often under the dashboard.
Q: Can I still drive my car with code U0262?
A: Yes, but the heating system might not work properly, which can be uncomfortable in cold weather.
Q: Will fixing this code improve my car's performance?
A: Fixing this code will primarily restore the proper function of your vehicle's heating system.
