POWER STEERING SYSTEM (w/ VSC), Diagnostic DTC:C1541

DESCRIPTION

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

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

   
   

   1. Check if DTC U0129 is output (Click here).

      Table 1. Result

      Result	Proceed to
      DTC U0129 is not output.	A
      DTC U0129 is output.	B

      Tip:

      DTC U0129 indicates a CAN communication malfunction in the power steering system.

   
   
   • AClick here
   • BClick here
2. Click here

   CHECK OTHER DTC OUTPUT (BRAKE CONTROL SYSTEM)

   
   

   1. Using the GTS, check for DTCs and confirm that there are no problems in the brake control system (Click herefor Hydraulic Brake Booster,Click herefor Vacuum Brake Booster).

      Table 2. Result

      Result		Proceed to
      DTC is not output.		A
      DTC is output.	for Hydraulic Brake Booster	B
      	for Vacuum Brake Booster	C

   
   
   • AClick here
   • BClick here
   • CClick 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 VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)Click here

6. Click here

   GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)Click here