C0070moderate severityChassis
Electronic Stability Control System
on 1993-2001 Subaru Impreza 2.2L H4 · AWD
What this code means
General malfunction in the vehicle stability control system.
Symptoms
- Stability control light on
- Traction control disabled
- VSC/ESC OFF warning
Common causes
- Faulty steering angle sensor
- Yaw rate sensor failure
- ABS issue affecting stability system
- Module failure
Diagnostic steps
- Scan for all chassis codes
- Test steering angle sensor
- Check yaw rate sensor
- Test ABS system
- Perform steering angle calibration
Repair notes
Often requires steering angle sensor calibration after alignment or battery disconnect.
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