POWER STEERING SYSTEM (for 1VD-FTV with DPF), Diagnostic DTC:C1544

DESCRIPTION

The power steering ECU receives engine speed signals from the ECM via CAN communication. The power steering ECU provides appropriate assisting force in accordance with the engine speed signal.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

   
   

   1. Check if DTC U0100 is output (Click here).

      Table 1. Result

      Result	Proceed to
      DTC U0100 is not output.	A
      DTC U0100 is output.	B

      Tip:

      DTC U0100 indicates a CAN communication malfunction in the power steering system.

   
   
   • AClick here
   • BClick here
2. Click here

   CHECK OTHER DTC OUTPUT (ECD SYSTEM)

   
   

   1. Using the GTS, check for DTCs and confirm that there are no problems in the ECD system (Click here).

      Table 2. Result

      Result	Proceed to
      DTC is not output.	A
      DTC is output.	B

   
   
   • AClick here
   • BClick here
3. Click here

   REPLACE POWER STEERING ECU ASSEMBLYClick here

4. Click here

   REPAIR CIRCUIT INDICATED BY OUTPUT CODEClick here

5. Click here

   GO TO ECD SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)Click here