P3256 – BMW DTC

BMW DTC P3256 – CAN Timeout Steering Angle Sensor Control Module

DTC P3256 meaning on BMW

DTC P3256 on a BMW indicates a CAN Timeout Steering Angle Sensor Control Module fault. This fault code is triggered when the communication between the steering angle sensor control module and other modules on the Controller Area Network (CAN) bus is interrupted or lost.

BMW DTC P3256 symptoms

Symptoms of DTC P3256 on a BMW may include:

• Malfunction indicator lamp (MIL) or check engine light illuminated on the dashboard
• Loss of power steering assistance
• Inaccurate steering angle readings
• Stability control system (DSC) or traction control system (TCS) warning lights illuminated

BMW DTC P3256 causes

The common causes of DTC P3256 on a BMW include:

• Faulty steering angle sensor control module
• Intermittent wiring or connection issues in the CAN bus network
• Software glitches or communication errors between modules

BMW DTC P3256 seriousness

DTC P3256 should be addressed promptly as it can affect the proper functioning of the vehicle’s stability control systems and power steering assistance. Ignoring this fault code may lead to safety concerns and compromised driving performance.

How to diagnose DTC P3256 on BMW

To diagnose DTC P3256 on a BMW, follow these steps:

1. Use a diagnostic scan tool to retrieve the fault code and freeze frame data
2. Inspect the wiring harness and connectors for any visible damage or corrosion
3. Check the power and ground connections to the steering angle sensor control module
4. Perform a CAN bus network test to identify communication issues

How to fix DTC P3256 on BMW

To fix DTC P3256 on a BMW, consider the following actions:

1. Replace the faulty steering angle sensor control module if necessary
2. Repair any damaged wiring or connectors in the CAN bus network
3. Update the software of the affected modules to address communication errors
4. Clear the fault code and perform a test drive to verify the repair

How to erase DTC P3256 on BMW

To erase DTC P3256 on a BMW, use a diagnostic scan tool to clear the fault code from the vehicle’s memory. After the code is cleared, perform a test drive to ensure that the fault does not reoccur.

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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