What causes the electric power steering system indicator light to come on?
1 Answers
When the power steering system warning light illuminates, it indicates a malfunction in the steering system. Possible causes are as follows: 1. Diagnostic trouble codes (DTCs): First, use a diagnostic tool to access the steering system and check for any DTCs stored in the steering control unit. Then, diagnose and repair based on the components indicated by the DTCs. 2. Common electrical component failures in the steering system: If diagnostic equipment shows static failure faults in sensors such as the torque sensor or steering angle sensor within the steering system, the steering gear may need replacement to resolve the issue. If there's a DTC indicating no basic setting for the steering angle sensor, perform a basic setting first to see if the issue can be resolved. If successful, the fault is cleared; if not, replace either the steering angle sensor or the entire steering gear assembly. 3. Manufacturer-related mechanical component failures in the steering system: Increased internal gear clearance can lead to inaccurate detection by the steering angle sensor, triggering the steering warning light. Additionally, deviations in the vehicle's wheel alignment data caused by accidents can also result in the steering system warning light illuminating.
