C0078moderate severityChassis
Steering Position Sensor Circuit Low
on 2016 Lexus LS 460 4.6L V8 · RWD
What this code means
The steering angle sensor is reporting a lower signal than expected for the current steering input.
Symptoms
- Stability control fault
- ESC disabled
- Steering position reads incorrectly on scan tool
Common causes
- Sensor power supply low
- Signal wire shorted to ground
- Sensor internal failure
- Clock spring wiring issue
Diagnostic steps
- Check sensor power supply voltage
- Test signal wire for shorts to ground
- Monitor sensor output through full steering range
- Inspect clock spring wiring
- Check steering column connector
Repair notes
Repair wiring short or replace steering angle sensor.
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