DTC Diagnosis Procedure

1. CONSULT
   1. Ignition switch ON.
   2. Select "TORQUE SEN VOLTAGE" in "Data Monitor" mode of "DAST 1".
   3. 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 Wiring Diagram.

1. 1. Ignition switch OFF.
   2. Disconnect steering angle main control module connector.
   3. Check the continuity between steering angle main 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.

1. CONSULT
   1. Connect steering angle main control module connector.
   2. Start the engine.
      CAUTION:

      Never drive the vehicle.

   3. Select "TORQUE SEN MAIN 2" and "TORQUE SEN SUB" in "Data Monitor" mode of "DAST 1".
   4. Check the value.

      Monitor item	Condition	Standard value(Approx.)
      TORQUE SEN MAIN 2	Steering wheel: Not steering(There is no steering force)	2.5 V
      	Steering wheel: Right turn	1.4 - 2.5 V
      	Steering wheel: Left turn	2.5 - 3.6 V
      TORQUE SEN SUB	Steering wheel: Not steering(There is no steering force)	2.5 V
      	Steering wheel: Right turn	1.4 - 2.5 V
      	Steering wheel: Left turn	2.5 - 3.6 V

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

1. 1. Ignition switch OFF.
   2. Disconnect steering angle main control module connector.
   3. Disconnect steering torque sensor connector.
   4. 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

   5. Check the continuity between steering angle main 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 malfunctioning. 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.

1. 1. Ignition switch OFF.
   2. Check enlarged contact spring of terminal. Refer to How to Check Terminal .
   3. 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.