U2748 – Invalid Data Received from the Steering Angle Sensor.

The ODBII code U2748 indicates that the vehicle’s control module has received invalid or erroneous data from the steering angle sensor, which may affect systems like stability control or steering assistance.

The severity of ODBII code U2748 is moderate.

Common Causes For: U2747 Invalid Data Received from Vehicle Control Module.

• Faulty steering angle sensor
• Poor electrical connections or wiring issues
• Corrupted or incompatible software/firmware
• Calibration issues
• Malfunctioning power steering control module
• Interference from other electronic components
• Low battery voltage or power supply issues

Common misdiagnosis for U2748 Invalid Data Received from the Steering Angle Sensor.

• Faulty Steering Angle Sensor
• Wiring Issues or Short Circuits
• Faulty Electronic Control Unit (ECU)
• Calibration Errors
• Faulty Wheel Speed Sensors
• Issues with the Power Steering System
• Incorrect Tire Pressure or Size
• Problems with the Vehicle Stability Control (VSC) System

Common Troubleshooting Steps

The OBD-II code U2748 indicates that there is an issue with the data received from the steering angle sensor. This code is often related to problems in the communication between the steering angle sensor and the vehicle’s control modules. Here are some common troubleshooting steps to diagnose and resolve the issue:

• Check for Other Codes: Before focusing on U2748, scan the vehicle for any other related trouble codes. Other codes may provide additional context or indicate a broader issue.
• Inspect Wiring and Connectors:
• Visually inspect the wiring and connectors associated with the steering angle sensor. Look for signs of damage, corrosion, or loose connections.
• Ensure that all connectors are securely plugged in and that there are no bent pins.
• Test the Steering Angle Sensor:
• Use a multimeter or a scan tool to check the output of the steering angle sensor. Compare the readings to the manufacturer’s specifications.
• If the sensor is not providing the correct data, it may need to be replaced.
• Check for Mechanical Issues:
• Ensure that the steering system is functioning properly. Check for any binding or mechanical issues that could affect the sensor’s operation.
• Verify that the steering wheel is centered and that the sensor is calibrated correctly.
• Inspect the Control Module:
• Check the vehicle’s control module (such as the ABS or stability control module) for any faults. Sometimes, the issue may lie within the module itself.
• Ensure that the module is receiving power and ground as required.
• Perform a Calibration:
• If the steering angle sensor has been replaced or if there have been any repairs to the steering system, it may need to be calibrated. Follow the manufacturer’s procedure for calibration.
• Check for Software Updates:
• Sometimes, software issues can cause communication problems. Check if there are any available updates for the vehicle’s control modules.
• Clear Codes and Test Drive:
• After performing the necessary repairs or adjustments, clear the trouble codes and take the vehicle for a test drive to see if the code returns.
• Consult Technical Service Bulletins (TSBs):
• Look for any TSBs related to the steering angle sensor or the specific vehicle model. Manufacturers may have issued guidance on common issues and fixes.
• Seek Professional Help:
• If the issue persists after following these steps, it may be necessary to consult a professional mechanic or technician who has experience with the specific vehicle and its systems. By following these troubleshooting steps, you should be able to identify and resolve the issue related to the U2748 code.