- Loose or disconnected electrical connections: Check that all the electrical connections, particularly those related to the steering system and power supply, are properly connected and secure.
- Faulty battery: Even though you have replaced the battery, there is a chance that the new battery may be defective. Try checking the battery voltage using a multimeter to make sure it's within the specified range.
- Electrical system issue: Replacing the battery may have disrupted the electrical system. Look for any blown fuses or damaged wires that might be affecting the steering and power supply systems.
- Faulty steering system components: If there is a problem with the steering rack, steering angle sensor, or other components, it could trigger a steering fault message.
- Software issues: In some cases, disconnecting the battery can reset or affect the vehicle's electronic control units (ECUs). This could lead to various warning messages, including the steering fault.
- Immobiliser system: If the immobiliser system is engaged, it can disable the steering and other functions. Double-check that your key is properly recognised by the vehicle.
If you're not comfortable troubleshooting these issues yourself, it's best to take your vehicle to a qualified mechanic or automotive electrician who can diagnose the exact problem and perform the necessary repairs.
