Dtc C1541 Vehicle Speed Signal


DESCRIPTION

INSPECTION PROCEDURE

CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

CHECK OTHER DTC OUTPUT (BRAKE CONTROL SYSTEM)

DTC C1541 Vehicle Speed Signal


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.

DTC Code
DTC Detection Condition
Trouble Area
C1541
An abnormal vehicle speed signal is received.
  1. Speed sensor circuit
  2. Brake control system
  3. CAN communication system
  4. Power steering ECU assembly

INSPECTION PROCEDURE

1.CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

  1. Check if DTC U0129 is output (LandCruiser RM00000275008XX.html).

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

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


B
REPAIR CIRCUIT INDICATED BY OUTPUT CODE (LandCruiser RM00000277M0AVX.html)
A


2.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 (LandCruiser RM0000046KV016X.html for Hydraulic Brake Booster, LandCruiser RM000000XHV0KEX.html for Vacuum Brake Booster).

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



B
GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (LandCruiser RM0000045Z601DX.html)

C
GO TO VEHICLE STABILITY CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (LandCruiser RM000000XHU0D8X.html)
A

REPLACE POWER STEERING ECU ASSEMBLY (LandCruiser RM000003FC0019X.html)