POWER STEERING SYSTEM PS Warning Light does not Come ON

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT CAN COMMUNICATION SYSTEM

   
   

   1. Using the intelligent tester, check for DTCs and confirm that there are no problems in the CAN communication system.

      OK
      DTCs are not output.

   
   

   NG

   GO TO CAN COMMUNICATION SYSTEM Click here

   OK

2. INSPECT MULTIPLEX COMMUNICATION SYSTEM

   
   

   1. Using the intelligent tester, check for DTCs and confirm that there are no problems in the multiplex communication system (BEAN).

      OK
      DTCs are not output.

   
   

   NG

   GO TO MULTIPLEX COMMUNICATION SYSTEM Click here

   OK

3. INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Turn the engine switch off.

   2. Connect the intelligent tester to the DLC3.

   3. Turn the engine switch on (IG).

   4. Turn the intelligent tester on.

   5. Perform the Active Test according to the display on the intelligent tester. Enter the following menus: Body Electrical / Combination Meter / Active Test.

      Combination Meter

      Item	Test Part	Control Range	Diagnostic Note
      Indicat. EPS	PS indicator light	PS warning light is ON/OFF	-

      OK
      P/S warning light comes on.

      Note

      If replacing the power steering ECU assembly, initialize the rotation angle sensor value and calibrate the torque sensor zero point Click here.

   
   

   NG

   REPLACE COMBINATION METER ASSEMBLY Click here

   OK

   REPLACE POWER STEERING ECU ASSEMBLY Click here