DTC Diagnosis Procedure

1. CONSULT
   1. Ignition switch ON.
   2. Select "BACK UP SIG 2 VOLT" in "Data Monitor" mode of "DAST 2".
   3. Check the value.

      Monitor item	Standard value(Approx.)
      BACK UP SIG 2 VOLT	0.5 - 4.75 V

Is the inspection result normal?

YES>>

GO TO 4.

NO>>

GO TO 2.

1. 1. Ignition switch OFF.
   2. Disconnect steering force control module connector and steering angle sub control module connector.
   3. Check the continuity between steering force control module harness connector and steering angle sub control module harness connector.

      Steering angle sub control module		Steering force control module		Continuity
      Connector	Terminal	Connector	Terminal
      E144	18	E141	24	Yes

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

      Steering angle sub control module		-	Continuity
      Connector	Terminal
      E144	18	Ground	No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning component.

1. CONSULT
   1. Connect each control module connector.
   2. Start the engine.
      CAUTION:

      Never drive the vehicle.

   3. Select "Self Diagnostic Result" mode of "EPS/DAST 3".

Is any DTC is detected?

YES>>

Check the DTC. Refer to DTC Index .

NO>>

GO TO 4.

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 sub control module. Refer to Removal and Installation .

NO>>

Repair or replace malfunctioning component.