BMW Steering Assist Reduced | Troubleshoot Electronic Power Steering on 2017 7-Series YOUCANIC
About this video
In this video, we demonstrate how to troubleshoot the “Steering Hard” error message on the dashboard of a 2017 BMW 740 7-Series using the YOUCANIC Full System Scanner. Proper functioning of the electronic power steering (EPS) is essential for maintaining control and safety while driving.
Why is it needed?
The electronic power steering system provides assistance to the driver, making steering easier and more responsive. When the system malfunctions, the steering can become difficult, increasing the risk of accidents. Troubleshooting and diagnosing the EPS system helps identify and resolve issues such as sensor faults, motor problems, or control module errors.
Common messages and fault codes related to electronic power steering issues:
“Steering Assist Reduced”: Message indicating a problem with the power steering assistance.
“Steering Hard”: Message indicating increased steering effort due to a malfunction.
DTC 4823E0: EPS control unit fault.
DTC 4823E1: EPS motor current too high.
DTC 4823E2: EPS torque sensor malfunction.
Technical Terms and Process:
Electronic Power Steering (EPS): A system that uses an electric motor to provide steering assistance to the driver.
EPS Control Unit: The electronic module that controls the operation of the EPS system.
Torque Sensor: A sensor that measures the amount of force applied to the steering wheel and adjusts the steering assistance accordingly.
Steering Motor: The electric motor that provides the necessary force to assist with steering.
Diagnostic Trouble Codes (DTCs): Codes that indicate specific faults within the vehicle’s systems.
Troubleshooting Steps:
Check Power Supply: Ensure the battery and electrical connections are in good condition and providing adequate power to the EPS system.
Inspect Fuses: Check the fuse related to the EPS system and replace it if blown.
Test EPS Motor: Use the YOUCANIC Scanner to activate the EPS motor and check for proper operation.
Read & Clear DTCs: Use the scanner to read any diagnostic trouble codes related to the EPS system and clear them after resolving the issues.
Inspect Torque Sensor: Check the torque sensor for proper operation and alignment.
Using the YOUCANIC Full System Scanner, we provide a detailed, step-by-step guide for troubleshooting the “Steering Hard” error message and diagnosing issues with the electronic power steering on your BMW 740 7-Series. This tutorial is ideal for both DIY car enthusiasts and professional mechanics, ensuring your vehicle’s steering system operates smoothly and reliably. Learn how to maintain and troubleshoot your BMW’s electronic power steering with our comprehensive guide.