DTC Diagnosis Procedure

1. CONSULT
   1. Ignition switch ON.
   2. Select "CONT MODULE INSIDE VOLT" and "BATTERY VOLTAGE" in "Data Monitor" mode of "EPS/DAST 3".
   3. Check the value

      Monitor item	Standard value(Approx.)
      CONT MODULE INSIDE VOLT	Battery voltage - 0.6 V
      BATTERY VOLTAGE	Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 2.

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

      Steering force control module		-	Continuity
      Connector	Terminal
      E142	34	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. 1. Ignition switch ON.
   2. Check the voltage between steering force control module harness connector and ground.

      (+)		(-)	Voltage(Approx.)
      Steering force control module
      Connector	Terminal
      E142	33	Ground	Battery voltage

Is the inspection result normal?

YES>>

GO TO 5.

NO>>

GO TO 4.

1. 1. Ignition switch OFF.
   2. Check the 60A fusible link (#Q).
   3. Check the harness for open or short between steering force control module harness connector E142 terminal 33 and the 60A fusible link (#Q).

Is the inspection result normal?

YES>>

Perform the trouble diagnosis for battery power supply circuit. Refer to appropriate Wiring Diagram.

NO>>

Repair or replace malfunctioning component.

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 force control module. Refer to Removal and Installation .

NO>>

Repair or replace malfunctioning component.