Toyota CH-R Service Manual: Vehicle Speed Signal (C1541)

Toyota CH-R Service Manual / Power Assist Systems / Power Steering System / Vehicle Speed Signal (C1541)

DESCRIPTION

The power steering ECU 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.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Warning Indicate

Return-to-normal Condition

Note

C1541

Vehicle Speed Signal

Vehicle speed signals via CAN communication are cut off for 3 seconds or more.
  • Brake control system
  • CAN communication system
  • Power steering ECU assembly

EPS warning light: Comes on

The ECU judges the system has returned to normal or the ignition switch is turned ON again

-

CAUTION / NOTICE / HINT

NOTICE:

If the power steering ECU 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.

Click here

Result

Proceed to

DTC U0129 is not output.

A

DTC U0129 is output.

B
B

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

A

2.

CHECK BRAKE CONTROL SYSTEM

(a) Using the Techstream, check for DTCs and confirm that there are no malfunctions in the brake control system.

Click here

Chassis > ABS/VSC/TRAC > Trouble Codes

Result

Proceed to

DTCs are not output.

A

DTCs are output.

B
A

REPLACE POWER STEERING ECU ASSEMBLY

B

GO TO BRAKE CONTROL SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)

    Error in Matching of ECUs (C1567)
    DESCRIPTION Based on the steering sensor signal, the power steering ECU assembly determines if the correct type of steering sensor is installed. DTC No. Detection Item ...

    Short in Motor Circuit (C1521-C1523,C1528,C1531-C1555)
    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note ...

    Other materials:

    Toyota CH-R Service Manual > Brake System (other): Brake Line
    Precaution PRECAUTION TROUBLESHOOTING PRECAUTION NOTICE: Since the brake lines are critical safety related parts, be sure to disassemble and inspect the components if a brake fluid leak is found. If any abnormalities are found, replace the component with a new one. When rem ...

    Toyota CH-R Service Manual > Rear Bumper: Components
    COMPONENTS ILLUSTRATION *1 QUARTER OUTSIDE MOULDING LH *2 QUARTER OUTSIDE MOULDING RH *3 REAR BUMPER ASSEMBLY *4 REAR BUMPER SIDE SEAL LH *5 REAR BUMPER SIDE SEAL RH ...

    Toyota C-HR (AX20) 2023-2026 Owner's Manual

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    © 2017-2026 Copyright www.tochr.net
    0.0099