Active Steering System Malfunction
2017-2017 Acura ILX 2.4L I4
The 2017 Acura ILX is equipped with a 2.4L inline-4 engine. Below you'll find detailed c0240 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
General fault in the active steering system that adjusts steering ratio based on vehicle speed.
Symptoms
- Active steering warning light
- Fixed steering ratio
- Steering feels different at various speeds
- Driver assist features limited
Common Causes
- Active steering motor failure
- Control module fault
- Position sensor malfunction
- CAN communication error
Diagnostic Steps
- Scan for active steering module codes
- Test active steering motor
- Check CAN communication to module
- Inspect wiring and connectors
- Test position feedback sensors
Repair Notes
Diagnose specific active steering component. System defaults to fixed ratio when faulted.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0240 on Other Vehicles
Common Questions
What does code C0240 mean on a 2017-2017 Acura ILX?
C0240 stands for "Active Steering System Malfunction". General fault in the active steering system that adjusts steering ratio based on vehicle speed.
What are the symptoms of C0240 on a Acura ILX?
Common symptoms of C0240 include: Active steering warning light, Fixed steering ratio, Steering feels different at various speeds, Driver assist features limited.
What causes C0240 on a 2017-2017 Acura ILX?
Common causes of C0240 include: Active steering motor failure, Control module fault, Position sensor malfunction, CAN communication error.
Last updated: March 2026