C1516 (blink 16) on Toyota Corolla E120: Calibration of Sensor Zero Point Not
Short answer: C1516 means “Calibration of Sensor Zero Point Not”. The car’s computer has found a fault in the EMPS system and turns on the EPS (electric power steering) warning. First check: workshop check order (RM821E): PERFORM CALIBRATION OF TORQUE SENSOR ZERO POINT -> CHECK POWER STEERING COMPUTER ASSY (EMPS ECU).
- Code
- C1516 · blink 16
- System
- EMPS
- Dashboard light
- EPS (electric power steering) warning
- Applies to
- Cars with electric power steering only. NOT fitted on PK cars: the EPC fig 4502 hydraulic vane pump covers ZZE12#..PKN and NZE120.
- Market note
- EMPS (electric power steering) is not fitted on PK cars; PK cars use hydraulic steering.
- Confidence
- high (official Toyota RM821E)
- Source
- toyotamanuals.gitlab.io
Symptoms and when it is set
- When torque sensor zero point calibration not performed, − this DTC is detected. This is detected when the torque sensor zero point calibra- − tion is not completed normally.
What to check, in order
- Workshop check order (RM821E): PERFORM CALIBRATION OF TORQUE SENSOR ZERO POINT -> CHECK POWER STEERING COMPUTER ASSY (EMPS ECU)
Related on this car
Clearing the code does not fix the fault. If it comes back, the problem is still there. For brakes, airbags and steering, see a trained mechanic.

