P1444 BMW Code - Diagnostic Module Tank Leakage Pump Control Open Circuit
Quick Answer
P1444 BMW indicates Diagnostic Module Tank Leakage Pump Control Open Circuit. Common causes include Faulty Diagnostic Module Tank Leakage (DMTL), DMTL harness is open or shorted, DMTL circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1444 BMW indicates Diagnostic Module Tank Leakage Pump Control Open Circuit.
- Common causes
- Common causes include Faulty Diagnostic Module Tank Leakage (DMTL), DMTL harness is open or shorted, DMTL circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1444 BMW Description
What are the Possible Causes of the DTC P1444 BMW?
- Faulty Diagnostic Module Tank Leakage (DMTL)
- DMTL harness is open or shorted
- DMTL circuit poor electrical connection
How to Fix the DTC P1444 BMW?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1444 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1444 BMW Code
1. What does the OBDII code P1444 mean for a BMW?
P1444 indicates an open circuit in the Diagnostic Module Tank Leakage (DMTL) pump control, which is part of the evap system responsible for detecting fuel vapor leaks.
2. What are the common symptoms of code P1444 in a BMW?
Common symptoms include the check engine light turning on, potential evap system malfunction warnings, and reduced fuel efficiency in some cases.
3. What causes the P1444 code on a BMW?
The code is usually caused by a faulty DMTL pump, damaged wiring or connectors, or issues with the control circuit.
4. Can I drive my BMW with the P1444 code?
While driving with the P1444 code is possible, it is not recommended as it may lead to evap system inefficiencies and could affect emissions compliance.
5. How do I diagnose the P1444 code on a BMW?
Diagnosis involves inspecting the DMTL pump, checking wiring and connectors for damage or corrosion, and testing the pump control circuit using a multimeter.
6. What repairs are needed to fix the P1444 code on a BMW?
Common repairs include replacing the DMTL pump, repairing or replacing damaged wiring, and ensuring proper connection of electrical components.
7. How much does it cost to repair the P1444 code on a BMW?
Repair costs can vary but typically range from $200 to $500 depending on whether the DMTL pump or wiring needs replacement.
8. Can a faulty DMTL pump trigger the P1444 code?
Yes, a malfunctioning DMTL pump is one of the most common causes of this code.
9. Will clearing the P1444 code fix the issue permanently?
Clearing the code may temporarily remove the warning, but the underlying problem must be addressed to prevent the code from returning.
10. Is the P1444 code related to fuel system leaks?
Yes, the DMTL pump is part of the evap system designed to detect fuel vapor leaks, and an open circuit can disrupt this function.
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