Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type B): C1541; Vehicle Speed Signal; 2019 - 2021 MY RAV4 RAV4 HV [02/2019 - 12/2021]
DTC
C1541
Vehicle Speed Signal
DESCRIPTION
for Gasoline Model:
The power steering ECU (rack and pinion power steering gear assembly) receives vehicle speed signals from the skid control ECU (brake actuator assembly) via CAN communication. The ECU provides appropriate assist force in accordance with the vehicle speed based on the signals.
for HV Model:
The power steering ECU (rack and pinion power steering gear assembly) receives vehicle speed signals from the skid control ECU (brake booster with master cylinder assembly) 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 is detected
Brake control system
CAN communication system
EPS warning light: Comes on
The ECU judges the system has returned to normal
-
CAUTION / NOTICE / HINT
NOTICE:
If the rack and pinion power steering gear assembly has been replaced, perform assist map writing and torque sensor zero point calibration.
Click here
PROCEDURE
1.
CHECK CAN COMMUNICATION SYSTEM
(a) Check if DTC U0129 is output.
Chassis > EMPS > Trouble Codes
Result
Proceed to
DTC U0129 is not output.
A
DTC U0129 is output.
B
A
GO TO BRAKE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)
for Gasoline Model: Click here
for HV Model: Click here
B
GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)