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 booster with master cylinder (skid control ECU) via CAN communication. The ECU provides appropriate assisting force in accordance with the vehicle speed, based on the signals.

DTC No. DTC Detection Condition Trouble Area
C1541/13 This DTC is detected when vehicle speed signals via CAN communication are cut off for 3 seconds or more.

  • Speed sensor circuit

  • Brake booster with master cylinder (Skid control ECU)

  • CAN communication system

  • Power steering ECU assembly

CAUTION / NOTICE / HINT

Note

If the power steering ECU assembly has been replaced with a new one, perform assist map writing and rotation angle sensor value initialization torque sensor zero point calibration after performing the initialization of the torque sensor zero point value Click here.

PROCEDURE


  1. CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)


    1. Check if DTC U0129/42 is output (See page for with Central Gateway ECU or Click here for without Central Gateway ECU).

      Result
      Result Proceed to
      U0129/42 is not output A
      U0129/42 is output (w/ Central Gateway ECU) B
      U0129/42 is output (w/o Central Gateway ECU) C

      Tech Tips

      DTC U0129/42 indicates a brake booster with master cylinder (skid control ECU) communication malfunction in the power steering system.


    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

  2. CHECK OTHER DTC OUTPUT (ELECTRONICALLY CONTROLLED BRAKE SYSTEM)


    1. Check for DTCs of the electronically controlled brake system Click here.

      OK
      Electronically controlled brake system DTCs are not output.

    OK

    REPLACE POWER STEERING ECU ASSEMBLY Click here

    NG

    REPAIR CIRCUIT INDICATED BY OUTPUT CODE Click here