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
      Tip:

      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:Click here

    for RHD:Click here

    U0129/42 is not output

  2. CHECK OTHER DTC OUTPUT (BRAKE CONTROL SYSTEM)

    1. Check for brake control system DTCs.

      w/o VSC:Click here

      w/ VSC:Click here

      Chassis > ABS/VSC/TRC > Trouble Codes

      Result

      Proceed to

      Brake control system DTC is not output.

      Brake control system DTC is output. (w/o VSC)

      Brake control system DTC is output. (w/ VSC)
    Brake control system DTC is not output.

    REPLACE POWER STEERING ECU ASSEMBLY

    Click here

    Brake control system DTC is output. (w/o VSC)

    GO TO ANTI-LOCK BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

    Click here

    Brake control system DTC is output. (w/ VSC)

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

    Click hereClick here