C0205high severityChassis
EPS Motor Position Sensor Circuit
on 2016 Tesla Model S 85 kWh Single Motor RWD · AWD
What this code means
Malfunction in the EPS motor position sensor used for commutation and control.
Symptoms
- EPS warning light
- No power steering assist
- Motor may vibrate or oscillate
- Noise from steering column
Common causes
- Faulty motor position sensor
- Sensor wiring damage
- EPS motor assembly failure
- Electromagnetic interference
Diagnostic steps
- Read EPS motor position data with scan tool
- Check sensor signal during slow steering input
- Inspect motor assembly connector
- Test for EMI sources near steering column
- Check motor resolver resistance
Repair notes
Replace EPS motor assembly. Motor position sensor is typically integral to motor.
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