BMW DTC P3244 – Electrical Auxiliary Heater Defective
DTC P3244 meaning on BMW
The Diagnostic Trouble Code (DTC) P3244 on a BMW indicates that there is a malfunction in the electrical auxiliary heater system. The auxiliary heater is a component in the vehicle that helps provide additional heat to the cabin or engine during cold weather conditions.
BMW DTC P3244 symptoms
Symptoms of DTC P3244 on a BMW may include:
- Reduced heating performance in the cabin
- Engine taking longer to reach operating temperature
- Check Engine Light (CEL) illuminated on the dashboard
BMW DTC P3244 causes
The common causes of DTC P3244 on a BMW are:
- Defective electrical auxiliary heater
- Wiring or connection issues in the auxiliary heater system
- Problems with the control module for the auxiliary heater
BMW DTC P3244 seriousness
While DTC P3244 may not directly affect the drivability of the vehicle, it can impact the comfort and efficiency of the heating system. It is recommended to address this issue to ensure proper functioning of the auxiliary heater.
How to diagnose DTC P3244 on BMW
To diagnose DTC P3244 on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer
- Inspect the electrical connections and wiring related to the auxiliary heater
- Test the auxiliary heater for proper functionality
- Check the control module for any faults
How to fix DTC P3244 on BMW
To fix DTC P3244 on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connections in the auxiliary heater system
- Replace the defective electrical auxiliary heater with a new unit
- If the control module is faulty, it may need to be replaced or reprogrammed
How to erase DTC P3244 on BMW
To erase DTC P3244 on a BMW, the fault codes can be cleared using a diagnostic scanner. After the necessary repairs have been made to address the underlying issue, the codes can be reset to turn off the Check Engine Light and ensure that the system is functioning properly.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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