POWER STEERING SYSTEM, Diagnostic DTC:C1541/13

DTC Code DTC Name
C1541/13 Vehicle Speed Signal

DESCRIPTION

The power steering ECU assembly receives vehicle speed signals from the brake actuator assembly via CAN communication. The ECU provides appropriate assisting force in accordance with the vehicle speed based on the signals.

If the ECU detects this DTC, it adjusts the amount of power assistance for a speed of 140 km/h (87 mph) and continues system control.

DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition
C1541/13 Vehicle Speed Signal This DTC is detected when vehicle speed signals via CAN communication are cut off for 3 seconds or more.

  • Speed sensor circuit

  • Brake actuator assembly

  • CAN communication system

  • Power steering ECU assembly

 On Ignition switch ON again

CAUTION / NOTICE / HINT

Note

If the power steering ECU assembly has been replaced, perform assist map writing Click here.

PROCEDURE


  1. CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Check if DTC U0129/42 is output.

      Click here

      Result
      Proceed to
      U0129/42 is not output
      U0129/42 is output

      Tech Tips

      DTC U0129/42 indicates a brake actuator assembly communication malfunction in the power steering system.


    U0129/42 is output

    GO TO CAN COMMUNICATION (HOW TO PROCEED WITH TROUBLESHOOTING) for LHD with Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION (HOW TO PROCEED WITH TROUBLESHOOTING) for RHD with Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION (HOW TO PROCEED WITH TROUBLESHOOTING) for LHD without Central Gateway ECU: Click here
    GO TO CAN COMMUNICATION (HOW TO PROCEED WITH TROUBLESHOOTING) for RHD without Central Gateway ECU: Click here

    U0129/42 is not output

  2. CHECK OTHER DTC OUTPUT (BRAKE CONTROL SYSTEM)


    1. Check for brake control system DTCs.

      Click here


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Proceed to
      Brake control system DTC is not output.
      Brake control system DTC is output.

    Brake control system DTC is not output.

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    Brake control system DTC is output.

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