The OBD code P1447 for BMW indicates an issue with the Diagnostic Module Tank Leakage (DMTL) Pump circuit.
Symptoms include the Engine Light being ON.
The main cause is a faulty DMTL Pump or related wiring issues.
This is a moderate issue that should be addressed to prevent further problems.
A possible fix is to inspect and repair any damaged components or wiring connections related to the DMTL Pump circuit.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the Bmw p1447 OBD Code
The vehicle may exhibit rough idling, stalling, or poor acceleration with BMW fault code P1447.
- Symptoms: Engine Light ON.
- Possible rough idle.
- Engine may stall at low speeds.
- Possible lack of power during acceleration.
Causes of the Bmw p1447 OBD Code
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Possible triggers for BMW fault code P1447 include issues with the purge control valve or vacuum leaks.
- P1447 can be caused by a Faulty Diagnostic Module Tank Leakage (DMTL) Pump.
- A Diagnostic Module Tank Leakage Pump harness that is open or shorted.
- A Diagnostic Module Tank Leakage Pump circuit with poor electrical connection.
Fixing Bmw Error Code p1447 Step By Step
Replace the leak detection pump in the BMW to address fault code P1447.
- To fix BMW OBDII code P1447, first, review the ‘Possible Causes’ mentioned above and visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Next, check the operation of the purge control valve and the purge control solenoid.
- Test the electrical connections to these components for proper voltage and continuity.
- If any faults are found during testing, replace the faulty components.
- Finally, clear the fault code from the vehicle’s computer using a diagnostic scan tool and test drive the vehicle to ensure the code does not return.
Cost Of Fixing Bmw p1447 Fault Code
Diagnosing and repairing BMW fault code P1447 may involve testing and replacing the leak detection pump.
The cost to diagnose and fix a BMW OBD code P1447 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the repair.
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Details of the Bmw p1447 OBD Code
BMW fault code P1447 relates to the purge valve being stuck open.
BMW OBD code P1447 indicates a leak in the diagnostic module tank ventilation (DMTL) system.
This system is responsible for monitoring fuel vapor leaks from the fuel tank and fuel system.
The code is triggered by the Engine Control Module (ECM) when it detects a leak in the DMTL system.
The ECM monitors the pressure and flow of the system to ensure there are no leaks that could contribute to harmful emissions.
Mechanic’s Tech Notes
Detailed information on BMW fault code P1447, including possible causes and diagnostic steps.
To diagnose and fix BMW OBDII code P1447, start by visually inspecting the wiring harness and connectors related to the Transmission Control Module (TCM).
Look for any damage or corrosion on the connector pins.
Use a multimeter to check TCM power and ground.
Verify TCM communication over the Controller Area Network (CAN) using a scan tool.
If necessary, consider reprogramming the TCM.
This code typically indicates an issue with the TCM communication circuit.
By following these steps, you can pinpoint the root cause and address it effectively.
FAQ
Common symptoms for BMW OBD code P1447 include Engine Light ON. Causes may be Faulty DMTL Pump or related wiring issues. Fix: Inspect and repair wiring and connectors.
The typical root cause of OBD code P1447 in BMW vehicles is a faulty Diagnostic Module Tank Leakage (DMTL) Pump or related wiring issues.
Diagnose and fix OBD code P1447 in your BMW by checking DMTL pump, harness, and connections for faults. Inspect wiring for damage or corrosion.
Wrap Up
If your BMW is displaying OBD code P1447, you may experience issues with the EVAP system, such as difficulty starting the engine, decreased fuel efficiency, or a strong fuel odor.
This code is commonly triggered by a faulty EVAP purge control valve, a leak in the EVAP system, or a malfunctioning EVAP pressure sensor.
To address BMW OBD code P1447, start by inspecting the EVAP system for any visible leaks, checking the condition of the EVAP purge control valve, and testing the EVAP pressure sensor for proper operation.
Ensure the wiring harness and
