DTC Diagnosis Procedure

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

      Monitor item	Standard value(Approx.)
      BACK UP SIG 1 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 angle main control module connector and steering angle sub control module connector.
   3. Check the continuity between steering angle main control module and steering angle sub control module harness connectors.

      Steering angle main control module		Steering angle sub control module		Continuity
      Connector	Terminal	Connector	Terminal
      E149	17	E144	22	Yes

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

      Steering angle main control module		-	Continuity
      Connector	Terminal
      E149	17	Ground	No

Is the inspection result normal?

YES>>

GO TO 3.

NO>>

Repair or replace malfunctioning components.

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

      Never drive the vehicle.

   3. Select "Self Diagnostic Result" mode of "DAST 2".

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 main control module. Refer to Removal and Installation .

NO>>

Repair or replace malfunctioning components.