• Cabin takes longer to heat up
• Heater not working at all
• Warning light on the dashboard
• Faulty auxiliary heater element
• Blown fuse or relay
• Wiring issues or poor connections
Auxiliary Heater: An additional heating element used to provide extra warmth to the vehicle's cabin.
Continuity: A complete electrical circuit that allows current to flow.
• P3247
• P3248
Electrical Auxiliary Heater
This code means that there's a problem with the car's extra heater, which helps warm up the car faster when it's cold outside.
The P3246 code indicates an issue with the electrical auxiliary heater, which is used to provide additional heating to the vehicle's cabin.
The electrical auxiliary heater is an additional heating element that supplements the vehicle's main heating system. It is typically used to quickly warm the cabin in cold conditions. This code suggests a malfunction in the heater's electrical circuit or components.
• Check for blown fuses related to the auxiliary heater.
• Inspect wiring and connections for damage or corrosion.
• Test the auxiliary heater element for continuity.
• Replace blown fuses or faulty relays.
• Repair or replace damaged wiring.
• Replace the auxiliary heater element if faulty.
• Multimeter
• Fuse puller
• Screwdriver set
$100 - $300
Moderate
• Volkswagen Passat
• Audi A4
• BMW 3 Series
• Regularly inspect and maintain electrical connections.
• Replace fuses and relays as needed.
• Ensure the heater is not overused in extreme conditions.
Electrical System Issue
• Avoid using the heater excessively until repaired.
• Have a professional inspect the system if unsure.
Check with your vehicle manufacturer for warranty coverage on electrical components.
This code has been more common in vehicles with additional heating systems designed for colder climates.
Moderate – It's important to fix for comfort, but not urgent for vehicle operation.
Driving with this code is generally safe, but comfort may be compromised. Ensure repairs are done by qualified personnel.
• Cold weather conditions
• Engine running with heater on
The auxiliary heater is typically located near the vehicle's main heating unit, often behind the dashboard or in the engine compartment.
Q: Can I drive with the P3246 code?
A: Yes, but your heater may not work properly, making the cabin uncomfortable in cold weather.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the electrical system can help prevent this issue.
