Steering Position Sensor Circuit Low
2023-2023 Tesla Model 3 Standard Range Single Motor RWD
The 2023 Tesla Model 3 is equipped with a Standard Range Single Motor RWD engine (RWD). Below you'll find detailed c0078 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
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.
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
C0078 on Other Vehicles
Tesla Cybertruck
2024-2024 Cyberbeast Tri Motor AWD
Tesla Cybertruck
2024-2024 Dual Motor AWD
Tesla Cybertruck
2024-2024 Single Motor RWD
Tesla Model 3
2017-2017 Long Range Dual Motor AWD
Tesla Model 3
2017-2017 Performance Dual Motor AWD
Tesla Model 3
2017-2017 Standard Range Plus Single Motor RWD
Tesla Model 3
2018-2018 Long Range Dual Motor AWD
Tesla Model 3
2018-2018 Performance Dual Motor AWD
Common Questions
What does code C0078 mean on a 2023-2023 Tesla Model 3?
C0078 stands for "Steering Position Sensor Circuit Low". The steering angle sensor is reporting a lower signal than expected for the current steering input.
What are the symptoms of C0078 on a Tesla Model 3?
Common symptoms of C0078 include: Stability control fault, ESC disabled, Steering position reads incorrectly on scan tool.
What causes C0078 on a 2023-2023 Tesla Model 3?
Common causes of C0078 include: Sensor power supply low, Signal wire shorted to ground, Sensor internal failure, Clock spring wiring issue.
Last updated: March 2026