Diagnosis Procedure

Regarding Wiring Diagram information, refer to - appropriate Wiring Diagram .

1. CHECK TEMPERATURE SENSOR POWER SUPPLY (1) 
   1. Turn the ignition switch OFF.
   2. Disconnect force motor angle sensor harness connector.
   3. Turn the ignition switch ON.
   4. Check the voltage between force motor angle sensor harness connector pin terminals.

      Force motor angle sensor			Voltage (Approx.)
      Connector	Terminal
      	+	-
      M330	3	7	5 V

   Is the inspection result normal?

   YES

   GO TO 6.

   NO

   GO TO 2.

2. CHECK TEMPERATURE SENSOR POWER SUPPLY (2) 

   Check the voltage between force motor angle sensor harness connector pin terminals.

   Force motor angle sensor		--	Voltage (Approx.)
   Connector	Terminal
   	+	-
   M330	3	Ground	5 V

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   GO TO 4.

3. CHECK TEMPERATURE SENSOR GROUND CIRCUIT 
   1. Turn the ignition switch OFF.
   2. Disconnect steering force control module harness connector.
   3. Check the continuity between steering force control module harness connector and force motor angle sensor harness connector.

      Steering force control module		Force motor angle sensor		Continuity
      Connector	Terminal	Connector	Terminal
      E141	29	M330	7	Yes

   Is the inspection result normal?

   YES

   GO TO 7.

   NO

   Repair open circuit or short to ground or short to power in harness or connectors.

4. CHECK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT 
   1. Turn the ignition switch OFF.
   2. Disconnect steering force control module harness connector.
   3. Check the continuity between steering force control module harness connector and force motor angle sensor harness connector.

      Steering force control module		Force motor angle sensor		Continuity
      Connector	Terminal	Connector	Terminal
      E141	31	M330	3	Yes

   4. Check the continuity between steering force control module harness connector and ground.

      Steering force control module		--	Continuity
      Connector	Terminal
      E141	31	Ground	No

   Is the inspection result normal?

   YES

   GO TO 5.

   NO

   Repair open circuit or short to ground or short to power in harness or connectors.

5. CHECK CONTROL MODULE POWER SUPPLY CIRCUIT 

   Check the power supply circuit for steering force control module. Refer to Diagnosis Procedure .

   Is the inspection result normal?

   YES

   GO TO 7.

   NO

   Repair or replace malfunctioning component.

6. CHECK TEMPERATURE SENSOR 

   Check the force motor temperature sensor. Refer to Component Inspection .

   Is the inspection result normal?

   YES

   GO TO 7.

   NO

   Force motor temperature sensor is malfunction. Replace steering column assembly. Refer to Removal and Installation .

7. CHECK INTERMITTENT INCIDENT 
   1. Check enlarged contact spring of terminal. Refer to How to Check Terminal .
   2. Perform intermittent incident while turning steering wheel. Refer to Intermittent Incident .

   Is the inspection result normal?

   YES

   Replace steering force control module. Refer to Removal and Installation .

   NO

   Repair or replace malfunctioning component.