Diagnosis Procedure
- CHECK TORQUE SENSOR POWER SUPPLY CIRCUIT
CONSULT
- Ignition switch ON.
- On the CONSULT screen, select "DAST 1">>"DATA MONITOR">>"TORQUE SEN VOLTAGE".
- Check the value
Monitor item
Standard value (Approx.)
TORQUE SEN VOLTAGE
4.5 - 5.5 V
Is the inspection result normal?
YES
GO TO 2.
NO
Perform the trouble diagnosis for battery power supply circuit. Refer to appropriate system wiring diagram.
- CHECK TORQUE SENSOR GROUND CIRCUIT
- Ignition switch OFF.
- Disconnect steering angle main control module harness connector.
- Check the continuity between control module harness connector and ground.
Steering angle main control module
--
Continuity
Connector
Terminal
E149
32
Ground
Yes
Is the inspection result normal?
YES
GO TO 3.
NO
Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK TORQUE SENSOR SIGNAL
- Connect steering angle main control module harness connector.
- Start the engine.CAUTION: Never drive the vehicle.
- On the CONSULT screen, select "DAST 2">>"DATA MONITOR">>"TORQUE SEN MAIN 2", and "TORQUE SEN SUB".
- Check the value
Monitor item
Condition
Standard value (Approx.)
TORQUE SEN MAIN 2
Steering wheel: Not steering
(There is no steering force)
Approx. 2.5 V
Steering wheel: Right turn
Approx. 1.4 - 2.5 V
Steering wheel: Left turn
Approx. 2.5 - 3.6 V
TORQUE SEN SUB
Steering wheel: Not steering
(There is no steering force)
Approx. 2.5 V
Steering wheel: Right turn
Approx. 1.4 - 2.5 V
Steering wheel: Left turn
Approx. 2.5 - 3.6 V
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK TORQUE SENSOR CIRCUIT
- Ignition switch OFF.
- Disconnect steering angle main control module harness connector.
- Check the continuity between steering angle main control module harness connector and steering torque sensor harness connector.
Steering angle main control module
Steering torque sensor
Continuity
Connector
Terminal
Connector
Terminal
E149
8
E231
2
Yes
1
4
3
3
7
1
- Check the continuity between control module harness connector and ground.
Steering angle main control module
--
Continuity
Connector
Terminal
E149
8
Ground
No
1
3
7
Is the inspection result normal?
YES
Torque sensor is malfunction. Replace steering gear assembly. Refer to Removal and Installation .
NO
Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK INTERMITTENT INCIDENT
- Ignition switch OFF.
- Check enlarged contact spring of terminal. Refer to How to Check Terminal .
- Perform intermittent incident while turning steering wheel. Refer to Intermittent Incident .
Is the inspection result normal?
YES
Replace steering angle main control module. Refer to Removal and Installation .
NO
Repair or replace malfunctioning component.