BMW DTC P189B – Safety Function Brake Torque Too High
DTC P189B meaning on BMW
The DTC P189B code on a BMW indicates that the Safety Function Brake Torque is too high. This means that the brake system is applying more torque than necessary, potentially leading to issues with braking performance and safety.
BMW DTC P189B symptoms
Symptoms of the DTC P189B code on a BMW may include:
- Increased brake pedal effort
- Reduced braking performance
- Brake system warning lights illuminated on the dashboard
BMW DTC P189B causes
Common causes of the DTC P189B code on a BMW include:
- Brake system malfunction
- Issues with the brake control module
- Problems with the brake pressure sensor
BMW DTC P189B seriousness
The DTC P189B code should be taken seriously as it can affect the vehicle’s braking performance and overall safety. It is important to address this issue promptly to ensure the proper functioning of the brake system.
How to diagnose DTC P189B on BMW
To diagnose the DTC P189B code on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the brake system components for any visible damage or wear
- Check the brake pressure sensor for proper operation
How to fix DTC P189B on BMW
To fix the DTC P189B code on a BMW, the following steps may be taken:
- Repair or replace any damaged brake system components
- Reset the brake control module to clear the fault code
- Perform a brake system calibration to ensure proper operation
How to erase DTC P189B on BMW
To erase the DTC P189B code on a BMW, a mechanic can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Once the issue has been addressed and fixed, the code can be erased to reset the system and ensure that the problem has been resolved.
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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