C0230moderate severityChassis
Power Steering Fluid Pressure Sensor Circuit
on 2002 Audi A4 1.8L Turbo I4 · AWD
What this code means
Malfunction in the hydraulic power steering fluid pressure sensor circuit.
Symptoms
- Power steering warning light
- Steering effort inconsistent
- Variable assist not functioning
Common causes
- Faulty pressure sensor
- Sensor wiring damage
- Connector corrosion
- Low power steering fluid level
Diagnostic steps
- Check power steering fluid level
- Test pressure sensor signal
- Inspect sensor wiring
- Monitor pressure readings at idle and during steering
- Check for fluid leaks
Repair notes
Check fluid level first. Replace pressure sensor if faulty.
Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic