Diagnostic Test

With CONSULT 

1. Turn the ignition switch ON.
2. On the CONSULT screen, select "EPS/DAST 3">>"DATA MONITOR">>"CONT MODULE INSIDE VOLT" and "BATTERY VOLTAGE".
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 STEP 5  .

NO 

GO TO STEP 2  .

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

   Steering force control module		-	Continuity
   Connector	Terminal
   M72	33	Ground	Existed

Is the inspection result normal?

YES 

GO TO STEP 3  .

NO 

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

1. Turn the ignition switch ON.
2. Check the voltage between control module harness connector and ground.

   Steering force control module		-	Continuity
   Connector	Terminal
   M72	34	Ground	10.5 - 16.0 V

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

GO TO STEP 4  .

1. Turn the ignition switch OFF.
2. Check the 60A fusible link (#G).
3. Check the harness for open or short between steering force control module harness connector No. 34 terminal and the 60A fusible link (#G).

Is the inspection result normal?

YES 

Perform the trouble diagnosis for battery power supply circuit. Refer to WIRING DIAGRAM - BATTERY POWER SUPPLY - .

NO 

Repair or replace error - detected parts.

1. Turn the 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 error - detected part.