BMW DTC P142D – Fuel Level Sensor Signal Stuck
DTC P142D meaning on BMW
DTC P142D on a BMW indicates that the fuel level sensor signal is stuck. This means that the sensor responsible for measuring the fuel level in the tank is not providing accurate data or is not functioning properly. The fuel level sensor is crucial for the accurate display of fuel levels on the dashboard and for the proper functioning of the fuel system.
BMW DTC P142D symptoms
Symptoms of DTC P142D on a BMW may include inaccurate fuel level readings on the dashboard, fluctuating fuel gauge readings, or the fuel gauge showing empty even when there is fuel in the tank. In some cases, the Check Engine Light may also illuminate on the dashboard.
BMW DTC P142D causes
The most common causes of DTC P142D on a BMW include a faulty fuel level sensor, wiring issues in the fuel level sensor circuit, or a problem with the fuel level sensor module. Corrosion or damage to the sensor or its wiring can also lead to this fault code.
BMW DTC P142D seriousness
While DTC P142D is not a critical issue that affects the drivability of the vehicle, it can cause inconvenience due to inaccurate fuel level readings. Ignoring this fault can lead to running out of fuel unexpectedly or other fuel-related issues.
How to diagnose DTC P142D on BMW
To diagnose DTC P142D on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and then perform a visual inspection of the fuel level sensor and its wiring. Testing the sensor’s resistance and checking for proper voltage supply are common diagnostic steps to pinpoint the issue.
How to fix DTC P142D on BMW
Fixing DTC P142D on a BMW usually involves replacing the faulty fuel level sensor or repairing any damaged wiring in the sensor circuit. In some cases, the fuel level sensor module may need to be replaced. Once the faulty component is identified and replaced, the system should be tested to ensure proper functionality.
How to erase DTC P142D on BMW
After fixing the underlying issue causing DTC P142D on a BMW, the fault code can be erased using a diagnostic scanner. By clearing the fault code, the Check Engine Light should turn off, indicating that the issue has been resolved. It is important to verify that the fuel level readings are accurate after clearing the fault code.
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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