Steering Angle Sensor: Testing and Inspection

EPS MOTOR ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR CALIBRATION: Description
Perform EPS motor angle sensor initialization and torque sensor calibration when replacing EPS control unit, replacing steering gear assembly and/or unbalanced steering wheel turning force.

NOTE:
^ If DTC "C1604 TORQUE SENSOR" is detected, torque sensor calibration cannot be performed.
^ If DTC "C1606 EPS MOTOR" is detected, EPS motor angle sensor initialization cannot be performed.

EPS MOTOR ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR CALIBRATION: Special Repair Requirement

1. CHECK IGNITION POWER SUPPLY

With CONSULT-III
1. Turn the ignition switch ON (READY).
2. Select "DATA MONITOR" mode for "EPS".
3. Read out the value of "IGN VOLT" and check voltage.

NOTE: If ignition power supply voltage is 10 V or less, initialization and calibration cannot be performed.

Is the voltage 10 - 14V?
YES >> GO TO 2.
NO >> Charge or replace battery.

2. ERASE DTC

With CONSULT-III
1. Turn the ignition switch ON (READY).
2. Perform the self-diagnosis.

NOTE:
^ If DTC "C1604 TORQUE SENSOR" is detected, torque sensor calibration cannot be performed. Erase DTC memory before starting calibration.
^ If DTC "C1606 EPS MOTOR" is detected, EPS motor angle sensor initialization cannot be performed. Erase DTC memory before starting initialization.

Is any malfunction detected by self-diagnosis?
YES >> Erase DTC memory or check the malfunctioning system.
NO >> GO TO 3.

3. PERFORM EPS MOTOR ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR CALIBRATION

With CONSULT-III
1. Turn the ignition switch ON (READY).
2. Return the steering wheel to the straight-ahead position.
3. Select "WORK SUPPORT" mode for "EPS".
4. Select "SENSOR CALIBRATION".
5. Follow the procedures on the CONSULT-III display to clear the EPS motor angle sensor calibration value, initialize the EPS motor angle sensor value, and calibrate the torque sensor.

CAUTION:
^ When initializing the EPS motor angle sensor value, observe the following to stabilize sensor voltage:
After turning the ignition switch ON or READY mode, wait for at least 2.5 seconds before turning the steering wheel. Do not turn the steering wheel quickly.
^ The steering wheel will vibrate during torque sensor calibration. Do not touch the steering wheel while it is vibrating or for 2 seconds after it stops.

>> END