U1198 – BMW DTC

BMW DTC U1198 – Lost Communication With Brake Torque

DTC U1198 meaning on BMW

DTC U1198 on a BMW indicates a communication error between the vehicle’s control modules and the brake torque system. This error code signifies that the control module responsible for monitoring brake torque is not receiving or transmitting data properly.

BMW DTC U1198 symptoms

Symptoms of DTC U1198 on a BMW may include:

• ABS warning light illuminated on the dashboard
• Brake system warning messages displayed
• Loss of traction control functionality
• Decreased braking performance

BMW DTC U1198 causes

Common causes of DTC U1198 on a BMW include:

• Faulty brake torque sensor
• Wiring or connection issues between control modules
• Defective control module responsible for brake torque monitoring

BMW DTC U1198 seriousness

DTC U1198 should be addressed promptly as it can affect the proper functioning of the brake system and traction control. Ignoring this error code may compromise the safety and performance of the vehicle.

How to diagnose DTC U1198 on BMW

To diagnose DTC U1198 on a BMW, a mechanic can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s system
2. Inspect the brake torque sensor and its wiring for any visible damage or corrosion
3. Check the connections between the control modules related to brake torque
4. Perform a communication test to identify any communication errors

How to fix DTC U1198 on BMW

To fix DTC U1198 on a BMW, the following steps can be taken:

1. Repair or replace the faulty brake torque sensor
2. Repair any damaged wiring or connections related to the brake torque system
3. Replace the control module responsible for brake torque monitoring if necessary
4. Clear the fault codes using a diagnostic scanner after the repairs

How to erase DTC U1198 on BMW

To erase DTC U1198 on a BMW, follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port
2. Select the option to clear fault codes from the control module menu
3. Follow the on-screen instructions to erase the DTC U1198 code
4. Verify that the code has been successfully cleared by rescanning the system

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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