POWER STEERING SYSTEM, Diagnostic DTC:C1511, C1512, C1513

DESCRIPTION

The torque sensor converts the rotation torque received from the steering wheel into electric signals and sends them to the power steering ECU assembly.

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   CHECK CONNECTORS

   
   

   1. Check the connection of the power steering ECU assembly and power steering link assembly connectors.

   2. Visually inspect the terminals of the power steering ECU assembly and power steering link assembly connectors.

      Result
      Result Proceed to Normal A Connectors not properly connected B Power steering ECU assembly connector terminals abnormal C Power steering link assembly connector terminals abnormal D

   
   
   • AClick here
   • B

     CONNECT CONNECTORS PROPERLY

   • C

     REPLACE POWER STEERING ECU ASSEMBLY for LHD:Click here

     REPLACE POWER STEERING ECU ASSEMBLY for RHD:Click here

   • D

     REPLACE POWER STEERING LINK ASSEMBLYClick here

2. Click here

   CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - TORQUE SENSOR)

   
   

   1. Disconnect the C5 power steering ECU assembly connector.

   2. Disconnect the C3 torque sensor connector.

   3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition C3-7 (TQG2) - C5-13 (TQG2) Always Below 1 Ω C3-2 (INSN) - C5-9 (INSN) Always Below 1 Ω C3-5 (OUCS) - C5-12 (OUCS) Always Below 1 Ω C3-6 (OUSN) - C5-11 (OUSN) Always Below 1 Ω C3-1 (INCS) - C5-10 (INCS) Always Below 1 Ω C3-8 (TQG1) - C5-6 (TQG1) Always Below 1 Ω C3-4 (TRQV) - C5-4 (TRQV) Always Below 1 Ω C3-7 (TQG2) - Body ground Always 10 kΩ or higher C3-2 (INSN) - Body ground Always 10 kΩ or higher C3-5 (OUCS) - Body ground Always 10 kΩ or higher C3-6 (OUSN) - Body ground Always 10 kΩ or higher C3-1 (INCS) - Body ground Always 10 kΩ or higher C3-8 (TQG1) - Body ground Always 10 kΩ or higher C3-4 (TRQV) - Body ground Always 10 kΩ or higher

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPAIR OR REPLACE HARNESS OR CONNECTOR

3. Click here

   INSPECT POWER STEERING LINK ASSEMBLY (TORQUE SENSOR)

   
   

   1. Disconnect the C3 torque sensor connector.

   2. 

      *a	Component without harness connected (Torque Sensor)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition 1 (INCS) - 7 (TQG2) Always 90 to 170 Ω 2 (INSN) - 7 (TQG2) Always 300 to 430 Ω 4 (TRQV) - 8 (TQG1) Always 4 to 14 Ω 5 (OUCS) - 7 (TQG2) Always 90 to 170 Ω 6 (OUSN) - 7 (TQG2) Always 300 to 430 Ω

      Result
      Proceed to OK NG

   
   
   • OKClick here
   • NG

     REPLACE POWER STEERING LINK ASSEMBLYClick here

4. Click here

   REPLACE POWER STEERING ECU ASSEMBLY

   
   

   1. Replace the power steering ECU assembly.

      for LHD:Click here

      for RHD:Click here

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
5. Click here

   ASSIST MAP WRITING, INITIALIZE ROTATION ANGLE SENSOR AND CALIBRATE TORQUE SENSOR ZERO POINT

   
   

   1. Perform assist map writing, rotation angle sensor initialization and torque sensor zero point calibration.

      Click here

      
      
      1. Chassis > EMPS > Utility

         Tester Display
         Torque Sensor Adjustment

      2. 
         
         1. 
            
      3. 
         
         10. 
             

      Result
      Proceed to NEXT

   
   
   • NEXTClick here
6. Click here

   RECONFIRM DTC

   
   

   1. Clear the DTCs.

      Click here

      
      
      1. Chassis > EMPS > Clear DTCs
      2. 
         
      3. 
         

   2. Check for DTCs.

      Click here

      
      
      1. Chassis > EMPS > Trouble Codes
      2. 
         
      3. 
         

      Result
      Result Proceed to DTC C1511, C1512 or C1513 is not output. A DTC C1511, C1512 or C1513 is output. B

   
   
   • A

     END

   • B

     REPLACE POWER STEERING LINK ASSEMBLYClick here