EPS Motor Circuit Overcurrent
2004-2016 Aston Martin DB9 6.0L V12
Description
The EPS control module detected excessive current draw from the power steering motor.
Symptoms
- EPS warning light
- Power steering assist reduced
- Steering may become very heavy suddenly
- EPS fault message
Common Causes
- EPS motor internal short
- Steering gear binding
- Low tire pressure causing excessive load
- EPS motor bearing failure
- Insufficient module power supply voltage
Diagnostic Steps
- Measure EPS motor current draw
- Check tire pressures
- Inspect steering gear for binding
- Test motor winding resistance for shorts
- Check battery voltage and alternator output
Repair Notes
Replace EPS motor if shorted. Check steering gear for mechanical binding. Verify electrical supply.
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
C0201 on Other Vehicles
Aston Martin DB11
2016-2024 4.0L V8 Twin Turbo
Aston Martin DB11
2016-2024 5.2L V12 Twin Turbo
Aston Martin DB7
1994-2003 3.2L I6 Supercharged
Aston Martin DBS Superleggera
2019-2024 5.2L V12 Twin Turbo
Aston Martin DBX
2020-2024 4.0L V8 Twin Turbo
Aston Martin Vantage
2005-2024 4.7L V8
Aston Martin Vantage
2018-2024 4.0L V8 Twin Turbo
Common Questions
What does code C0201 mean on a 2004-2016 Aston Martin DB9?
C0201 stands for "EPS Motor Circuit Overcurrent". The EPS control module detected excessive current draw from the power steering motor.
What are the symptoms of C0201 on a Aston Martin DB9?
Common symptoms of C0201 include: EPS warning light, Power steering assist reduced, Steering may become very heavy suddenly, EPS fault message.
What causes C0201 on a 2004-2016 Aston Martin DB9?
Common causes of C0201 include: EPS motor internal short, Steering gear binding, Low tire pressure causing excessive load, EPS motor bearing failure, Insufficient module power supply voltage.