BMW DTC P1445 – Diagnostic Module Tank Leakage (DM-TL) Pump Control Circuit Low
DTC P1445 meaning on BMW
The Diagnostic Trouble Code (DTC) P1445 for BMW refers to the Diagnostic Module Tank Leakage (DM-TL) Pump Control Circuit Low. This code indicates that there is a malfunction in the control circuit of the DM-TL pump, which is responsible for monitoring the fuel vapor system for leaks.
BMW DTC P1445 symptoms
Symptoms of DTC P1445 on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Decreased fuel efficiency
- Strong fuel odor near the vehicle
BMW DTC P1445 causes
The common causes of DTC P1445 on a BMW include:
- Faulty DM-TL pump
- Wiring issues in the DM-TL pump control circuit
- Corrosion or poor connections in the circuit
BMW DTC P1445 seriousness
While DTC P1445 may not cause immediate drivability issues, it is important to address this code promptly. Ignoring this code can lead to increased emissions, potential fuel leaks, and may cause the vehicle to fail emissions tests.
How to diagnose DTC P1445 on BMW
To diagnose DTC P1445 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer.
- Inspect the DM-TL pump and its wiring for any visible damage or corrosion.
- Check the connections and wiring in the DM-TL pump control circuit for continuity and proper voltage.
How to fix DTC P1445 on BMW
To fix DTC P1445 on a BMW, you can try the following solutions:
- Replace the faulty DM-TL pump if it is determined to be the cause of the issue.
- Repair any damaged or corroded wiring in the DM-TL pump control circuit.
- Clear the fault codes using a diagnostic scanner after the repairs have been made.
How to erase DTC P1445 on BMW
To erase DTC P1445 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer. After making the necessary repairs to address the underlying issue causing the code, clearing the code will reset 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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