U1108 – BMW DTC

BMW DTC U1108 – Message Monitoring Torque Request Steering Alive Check

DTC U1108 meaning on BMW

The DTC U1108 on a BMW refers to the Message Monitoring Torque Request Steering Alive Check. This diagnostic trouble code indicates an issue with the communication system related to the torque request steering alive signal.

BMW DTC U1108 symptoms

Symptoms of the BMW DTC U1108 may include:

  • Loss of power steering assistance
  • Steering wheel stiffness
  • Warning lights on the dashboard
  • Unresponsive steering controls

BMW DTC U1108 causes

Common causes of the BMW DTC U1108 include:

  • Faulty torque sensor
  • Wiring or connection issues in the steering system
  • Electronic control module (ECM) malfunction
  • Communication network problems

BMW DTC U1108 seriousness

The DTC U1108 can affect the steering functionality of the vehicle, potentially leading to safety concerns. It is important to address this issue promptly to ensure proper steering operation.

How to diagnose DTC U1108 on BMW

To diagnose the DTC U1108 on a BMW, you can follow these steps:

  1. Use a diagnostic scanner to retrieve the fault codes.
  2. Inspect the torque sensor and its wiring for any visible damage.
  3. Check the communication network for any faults or interruptions.
  4. Perform a steering system test to verify the torque request signals.

How to fix DTC U1108 on BMW

To fix the DTC U1108 on a BMW, you can try the following:

  1. Replace the faulty torque sensor if necessary.
  2. Repair any damaged wiring or connections in the steering system.
  3. Reset the electronic control module (ECM) and clear the fault codes.
  4. Ensure proper communication network functionality.

How to erase DTC U1108 on BMW

To erase the DTC U1108 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the system. Once the issue has been addressed and fixed, you can reset the codes to turn off the warning lights on the dashboard.

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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