C0240
Active Steering System Malfunction
2016-2021 Mazda CX-3 2.0L I4
High SeverityChassisGeneric (SAE)
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
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0025LF Wheel Speed Sensor Circuit Intermittent
C0240 on Other Vehicles
Common Questions
What does code C0240 mean on a 2016-2021 Mazda CX-3?
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 Mazda CX-3?
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 2016-2021 Mazda CX-3?
Common causes of C0240 include: Active steering motor failure, Control module fault, Position sensor malfunction, CAN communication error.