POWER STEERING SYSTEM, Diagnostic DTC:C1541

DTC Code DTC Name
C1541 Vehicle Speed Signal

DESCRIPTION

The power steering ECU (rack and pinion power steering gear assembly) receives vehicle speed signals from the skid control ECU (brake actuator assembly)*1 or skid control ECU assembly*2 via CAN communication. The ECU provides appropriate assist force in accordance with the vehicle speed based on the signals.


DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note
C1541 Vehicle Speed Signal A vehicle speed signal malfunction.

  • Electronically controlled brake system

  • CAN communication system

 EPS warning light: Comes on The ECU judges the system has returned to normal -

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if DTC U0129 is output.

      Click here


      Chassis > EMPS > Trouble Codes
      Result
      Result Proceed to
      DTC U0129 is not output A
      DTC U0129 is output B

    A

    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) w/ Vacuum Brake Booster: Click here
    GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) w/o Vacuum Brake Booster: Click here

    B

    GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) Click here