Toyota Venza manuals

Toyota Venza: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Power Steering System

Symptom

Suspected Area

See page

Steering is heavy.

Front tires (Improperly inflated, unevenly worn)


Front wheel alignment (Incorrect)


Front suspension (Lower ball joint)


Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Steering column assembly


Torque sensor (Built into steering column assembly)

-

Power steering motor

-

Speed sensor


Skid control ECU (Built into brake actuator)

-

Battery and power source system

-

Power steering ECU power source voltage and relay

-

Power steering ECU assembly


Steering effort differs between right and left or is uneven.

Rotation angle sensor initialization and torque sensor zero point calibration


Front tires (Improperly inflated, unevenly worn)


Front wheel alignment (Incorrect)


Front suspension (Lower ball joint)


Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Torque sensor (Built into steering column assembly)

-

Steering column assembly


Power steering motor

-

Power steering ECU assembly


While driving, steering effort does not change in accordance with vehicle speed or the steering wheel does not return properly.

Front suspension (Lower ball joint)


Speed sensor


Skid control ECU (Built into brake actuator)

-

Combination meter


Torque sensor (Built into steering column assembly)

-

Power steering motor

-

Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Power steering ECU assembly


A knocking (or cranking) sound occurs when turning the steering wheel while power steering is operating.

Front suspension (Lower ball joint)


Steering intermediate shaft

-

Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Noise occurs when turning the steering wheel during low speed driving.

Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Steering column assembly


Power steering ECU assembly


High-pitched sounds (squeaking) occur when turning the steering wheel slowly with the vehicle stopped.

Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Power steering motor

-

The steering wheel vibrates and noise occurs when turning the steering wheel from lock to lock.

Power steering gear (for 2GR-FE)


Power steering gear (for 1AR-FE)


Steering column assembly


PS warning light remains on.

Proceed to PS warning light remains on


Calibration
CALIBRATION 1. ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION NOTICE: Clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and c ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK POWER STEERING ECU HINT: As connector z8 uses a lock lever, each terminal cannot be checked while the connector is still connected to the power steering ECU. ...

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Components
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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 ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) (a) Disconnect the P4 ECU connector. (b) Measure the resistance and voltage according to the value(s) in the table below. HINT: Measure the values on the wire harness si ...

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