DTC C1541: Vehicle Speed Signal Malfunction [08/2013 - 12/2013]: Description

The power steering ECU assembly receives vehicle speed signals from the brake actuator assembly via CAN communication. The ECU provides appropriate assist 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 100 km/h (62 mph) and continues system control.

DTC No.	DTC Detection Condition	Trouble Area
C1541	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