BMW DTC P1473 – Diagnostic Module Tank Leckage (DM-TL) Pump Current Plausibility
DTC P1473 meaning on BMW
The Diagnostic Trouble Code (DTC) P1473 for BMW refers to an issue with the Diagnostic Module Tank Leakage (DM-TL) pump current plausibility. This code indicates that there is a problem with the current being drawn by the DM-TL pump, which is responsible for monitoring the fuel tank for leaks.
BMW DTC P1473 symptoms
Symptoms of BMW DTC P1473 may include:
- Check Engine Light illuminated
- Decreased fuel efficiency
- Engine running rough
- Strong fuel odor
BMW DTC P1473 causes
Common causes of BMW DTC P1473 include:
- Faulty DM-TL pump
- Wiring issues
- ECU (Engine Control Unit) malfunction
- Leaking fuel system
BMW DTC P1473 seriousness
Ignoring BMW DTC P1473 can lead to potential safety hazards and environmental concerns. A malfunctioning DM-TL pump can result in fuel leaks, which pose a fire risk and can also harm the environment.
How to diagnose DTC P1473 on BMW
To diagnose BMW DTC P1473, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the DM-TL pump and associated wiring for any visible damage
- Test the DM-TL pump’s current draw using a multimeter
- Check for any fuel leaks in the system
How to fix DTC P1473 on BMW
To fix BMW DTC P1473, the following steps may be taken:
- Replace the faulty DM-TL pump
- Repair any damaged wiring or connectors
- If the ECU is faulty, it may need to be reprogrammed or replaced
- Ensure there are no fuel leaks in the system
How to erase DTC P1473 on BMW
To erase BMW DTC P1473, the fault code can be cleared using a diagnostic scanner. After the necessary repairs have been made, the code can be reset, and the Check Engine Light should turn off if the issue has been resolved successfully.
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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