U117D – BMW DTC

BMW DTC U117D – Lost Communication With Fuel Tank Pressure/Temperature Sensor

DTC U117D meaning on BMW

The DTC U117D code on a BMW indicates a communication error with the fuel tank pressure/temperature sensor. This sensor is responsible for monitoring the pressure and temperature inside the fuel tank. When the communication between the sensor and the vehicle’s control module is lost, the U117D diagnostic trouble code is triggered.

BMW DTC U117D symptoms

Symptoms of the DTC U117D code on a BMW may include:

• Check Engine Light (MIL) illuminated on the dashboard
• Decreased fuel efficiency
• Engine running rough or stalling
• Issues with the fuel system

BMW DTC U117D causes

The DTC U117D code on a BMW can be caused by various factors, including:

• Faulty fuel tank pressure/temperature sensor
• Wiring or connection issues between the sensor and the control module
• Corrosion or damage to sensor connectors
• Software glitches in the vehicle’s control module

BMW DTC U117D seriousness

While the DTC U117D code may not always result in immediate drivability issues, it is important to address the underlying problem promptly. Ignoring this code can lead to potential fuel system malfunctions and affect the overall performance of the vehicle.

How to diagnose DTC U117D on BMW

To diagnose the DTC U117D code on a BMW, a mechanic may perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s control module
2. Inspect the fuel tank pressure/temperature sensor and its wiring for any visible damage or corrosion
3. Check the sensor’s connectors for proper connection
4. Test the sensor’s functionality using a multimeter or specialized diagnostic tools

How to fix DTC U117D on BMW

To fix the DTC U117D code on a BMW, the following steps may be taken:

1. Replace the faulty fuel tank pressure/temperature sensor if it is determined to be the cause of the communication error
2. Repair or replace any damaged wiring or connectors associated with the sensor
3. Clear the fault codes using a diagnostic scanner after the repairs have been completed
4. Perform a test drive to ensure the issue has been resolved

How to erase DTC U117D on BMW

To erase the DTC U117D code on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port
2. Access the scanner’s menu to clear the fault codes stored in the control module
3. Follow the on-screen instructions to erase the DTC U117D code
4. Disconnect the scanner and start the vehicle to ensure the code has been successfully cleared

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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