P1775 – BMW DTC

BMW DTC P1775 – CAN Wheel Speed Rear Wheel Right No Signal

DTC P1775 meaning on BMW

The Diagnostic Trouble Code (DTC) P1775 for BMW indicates a fault with the CAN communication system related to the wheel speed sensor for the rear right wheel. This code specifically points to a lack of signal being received from the wheel speed sensor on the rear right wheel.

BMW DTC P1775 symptoms

Symptoms associated with DTC P1775 on a BMW may include:

• ABS warning light illuminated on the dashboard
• Traction control system malfunction
• Stability control system not functioning properly
• Loss of traction control and stability assistance

BMW DTC P1775 causes

The potential causes of DTC P1775 on a BMW include:

• Defective wheel speed sensor on the rear right wheel
• Faulty wiring or connectors in the CAN communication system
• ECU (Electronic Control Unit) communication issues
• Interference or signal disruption in the CAN network

BMW DTC P1775 seriousness

The seriousness of DTC P1775 lies in the compromised safety systems of the vehicle. Issues with wheel speed sensors can affect the proper functioning of ABS, traction control, and stability control systems, potentially leading to unsafe driving conditions, especially in adverse weather or emergency situations.

How to diagnose DTC P1775 on BMW

To diagnose DTC P1775 on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s ECU.
2. Inspect the wiring and connectors related to the rear right wheel speed sensor for any damage or corrosion.
3. Test the wheel speed sensor itself for proper functionality using a multimeter.
4. Check the CAN communication network for any disruptions or faults.

How to fix DTC P1775 on BMW

To fix DTC P1775 on a BMW, you can try the following solutions:

1. Replace the faulty rear right wheel speed sensor with a new one.
2. Repair or replace any damaged wiring or connectors in the CAN communication system.
3. Clear the fault codes using a diagnostic scanner after making the necessary repairs.
4. Perform a test drive to ensure the ABS, traction control, and stability control systems are functioning correctly.

How to erase DTC P1775 on BMW

To erase DTC P1775 on a BMW, you can follow these steps:

1. Connect a diagnostic scanner to the vehicle’s OBD-II port.
2. Access the ECU and navigate to the fault code section.
3. Select the option to clear the fault codes stored in the ECU.
4. Confirm the deletion of the DTC P1775 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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