Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's extra heater is getting too hot. It's like when a toaster gets too hot and might burn the toast.
The P3245 code indicates that the vehicle's auxiliary heater has exceeded its normal operating temperature range.
The auxiliary heater is an electrical component used to provide additional heat to the vehicle's cabin. When the control module detects that the heater's temperature has exceeded safe levels, it triggers the P3245 code. This could be due to a malfunction in the heater itself, a faulty temperature sensor, or an issue with the control circuitry.
• Heater not working properly
• Unusual smells from the heater
• Warning light on the dashboard
• Faulty auxiliary heater
• Defective temperature sensor
• Wiring issues or short circuits
Auxiliary Heater: An additional heater used to provide extra warmth inside the vehicle.
Temperature Sensor: A device that measures the temperature of a component or environment.
• Check for any related trouble codes.
• Inspect the auxiliary heater and its wiring for damage.
• Test the temperature sensor for proper operation.
• Replace the faulty auxiliary heater.
• Repair or replace damaged wiring.
• Replace the defective temperature sensor.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Volkswagen Passat
• Audi A4
• BMW 3 Series
• Regularly inspect the heater system.
• Ensure proper electrical connections.
• Use the heater within recommended settings.
Electrical System Issue
• Avoid using the heater until the issue is resolved.
• Consult a professional mechanic for diagnosis.
Check with the vehicle manufacturer for specific warranty coverage related to electrical components.
This code has been reported in vehicles with auxiliary heater systems, particularly in colder climates where these systems are used more frequently.
Moderate – While the vehicle can still be driven, the heater may not function properly, affecting comfort.
Ignoring this issue could lead to further electrical problems or potential fire hazards.
• Vehicle should be at operating temperature.
• Heater system should be activated.
The auxiliary heater is typically located within the HVAC system, often near the dashboard or under the hood.
Q: Can I still drive my car with this code?
A: Yes, but the heater may not work correctly, and it should be repaired soon to avoid further issues.
Q: Will this code affect my car's performance?
A: No, it primarily affects the heating system, not the engine performance.
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