Toyota Venza manuals

Toyota Venza: Vehicle Speed Signal Malfunction (C1541)

Toyota Venza Service Manual / Power Assist Systems / Power Steering System / Vehicle Speed Signal Malfunction (C1541)

DESCRIPTION

The power steering ECU receives vehicle speed signals from the brake actuator assembly (skid control ECU) via CAN communication. The ECU provides appropriate assisting force in accordance with the vehicle speed, based on the signals.

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 (Skid control ECU)
  • CAN communication system
  • Power steering ECU

CAUTION / NOTICE / HINT

NOTICE:

If the power steering ECU has been replaced with a new one, perform the rotation angle sensor initialization and torque sensor zero point calibration (See page ).


PROCEDURE

1.

CHECK OTHER DTC OUTPUT (CAN COMMUNICATION SYSTEM)

(a) Check if DTC U0129 is output (See page
).

Result

Proceed to

No output

A

U0129 is output

B

HINT:

DTC U0129 indicates an brake actuator assembly (skid control ECU) communication malfunction in the power steering system.


B

GO TO CAN COMMUNICATION SYSTEM


A

2.

CHECK OTHER DTC OUTPUT (VEHICLE STABILITY CONTROL SYSTEM)

(a) Using the Techstream, check for DTCs and confirm that there are no problems in the vehicle stability control system (See page ).


Result

Proceed to

DTC is not output.

A

DTC is output.

B


A

REPLACE POWER STEERING ECU


B

REPAIR CIRCUIT INDICATED BY OUTPUT CODE

Motor Rotation Angle Sensor Malfunction (C1528)
DESCRIPTION The motor rotation angle sensor detects the motor rotation angle and sends this information to the power steering ECU. DTC No. DTC Detection Condition ...

Motor Circuit Malfunction (C1522-C1555)
DESCRIPTION The power steering ECU supplies current to the power steering motor through the motor circuit. DTC No. DTC Detection Condition Trouble Area ...

Other materials about Toyota Venza:

Inspection
INSPECTION PROCEDURE 1. INSPECT PARKING BRAKE SWITCH ASSEMBLY (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Switch Condition ...

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful bec ...

Power back door switch (vehicles with power back door)
Push the switch to close. Pressing the switch again while the power back door is closing will cause it to open again. However, the reverse operation cannot be performed for the first second after pressing the switch to close the door. The back door ca ...

© 2016-2021 Copyright www.tovenza.com

0.229