C0077moderate severityChassis
Steering Position Sensor Range/Performance
on 1998 Saab 900 2.3L I4 · FWD
What this code means
The steering angle sensor output does not match expected values for current vehicle behavior.
Symptoms
- Stability control light on
- ESC activates incorrectly
- Steering center point wrong after alignment
- Lane keep assist malfunction
Common causes
- Steering angle sensor not calibrated after alignment
- Sensor internal fault
- Clock spring partially damaged
- Steering column mechanical issue
Diagnostic steps
- Perform steering angle sensor calibration
- Compare sensor reading to actual wheel position
- Check for clock spring codes
- Verify alignment was performed correctly
- Test sensor full-range travel lock to lock
Repair notes
Recalibrate steering angle sensor. Perform on a level surface with wheels straight.
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