Toyota Venza manuals

Toyota Venza: 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 because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Turn the ignition switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / EMPS / Data List.

(f) According to the display on the Techstream, read the "Data List".

EMPS

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Meter Vehicle Velocity

Vehicle speed from meter/

Min.: 0 km/h (0 mph)

Max.: 300 km/h (186.4 mph)

0 km/h (0 mph)

The vehicle is stopped.

No significant fluctuation

The vehicle is driven at a constant speed.

Engine Revolution

Engine speed/

Min.: 0 rpm

Max.: 12800 rpm

No significant fluctuation

The engine is running at a constant speed.

Motor Actual Current

Amount of current to motor/

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

The engine is running and steering wheel is being turned.

Command Value Current

Demanded amount of current to motor/

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

The engine is running and steering wheel is being turned.

Steering Angle Velocity

Steering angle speed/

Min.: -32768 deg/s

Max.: 32767 deg/s

Value changes in proportion to steering effort

The engine is running and steering wheel is being turned.

Thermistor Temperature

ECU substrate temperature/

Min.: -40°C (-40°F)

Max.: 150°C (302°F)

-40°C to 150°C (-40°F to 302°F)

Ignition switch ON

PIG Power Supply

Power source voltage to active motor/

Min.: 0 V

Max.: 20.1531 V

11 to 14 V

The engine is running and power steering is operating.

IG Power Supply

ECU power source voltage/

Min.: 0 V

Max.: 20.1531 V

11 to 14 V

Ignition switch ON

Steering Angle Sens Sig

Steering angle sensor signal state/

OK or NG(1) or NG(2) or NG(3)

OK: Steering angle sensor signal received

NG(1): The learning has not completed

NG(2): Steering Sensor Abnormal

NG(3): Communication Error

-

Steering Wheel Torque

Steering wheel torque/

Min.: -7.0 Nm

Max.: 7.0 Nm

Value changes in proportion to steering effort

The engine is running and steering wheel is being turned.

Motor Rotation Angle

Motor rotation angle/

Min.: 0 deg

Max.: 360 deg

During steering operation, motor rotation angle value changes from 0 to 360°

The engine is running and steering wheel is being turned.

Command Val Current 2

Demanded amount of current to motor/

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

The engine is running and steering wheel is being turned.

PIG2 Voltage

Coil rear pressurization voltage/

Min.: 0 V

Max.: 45.955 V

Approximately 33 V

The engine is running and steering wheel is not being turned.

Value changes within 16 to 46 V range

The engine is running and steering wheel is being turned.

Motor Voltage

Motor power supply voltage/

Min.: 0 V

Max.: 45.955 V

Approximately 33 V

The engine is running and steering wheel is not being turned.

Value changes within 4 to 46 V range

The engine is running and steering wheel is being turned.

Motor Terminal Volt(U)

Motor terminal voltage (U phase)/

Min.: 0 V

Max.: 46.667 V

Value changes within 4 to 46 V range

The engine is running and steering wheel is being turned.

Motor Terminal Volt(V)

Motor terminal voltage (V phase)/

Min.: 0 V

Max.: 46.667 V

Value changes within 4 to 46 V range

The engine is running and steering wheel is being turned.

Motor Terminal Volt(W)

Motor terminal voltage (W phase)/

Min.: 0 V

Max.: 46.667 V

Value changes within 4 to 46 V range

The engine is running and steering wheel is being turned.

Torque Sensor 1 Output

Torque sensor voltage/

Min.: 0 V

Max.: 5 V

2.3 to 2.7 V

The engine is running and steering wheel is not turned (without load).

2.5 to 3.8 V

The engine is running and steering wheel is turned to right with vehicle stopped.

1.2 to 2.5 V

The engine is running and steering wheel is turned to left with vehicle stopped.

Torque Sensor 2 Output

Torque sensor voltage/

Min.: 0 V

Max.: 5 V

2.3 to 2.7 V

The engine is running and steering wheel is not turned (without load).

1.2 to 2.5 V

The engine is running and steering wheel is turned to right with vehicle stopped.

2.5 to 3.8 V

The engine is running and steering wheel is turned to left with vehicle stopped.

TRQ1 Zero Point Value

Torque sensor 1 zero point voltage/

Min.: 0 V

Max.: 5 V

Values differ depending on vehicle

The engine is running and steering wheel is not being turned.

TRQ2 Zero Point Value

Torque sensor 2 zero point voltage/

Min.: 0 V

Max.: 5 V

Values differ depending on vehicle

The engine is running and steering wheel is not being turned.

IG ON/OFF Times

Number of times of engine switch ON/OFF after fail detection/

Min.: 0 time

Max.: 65535 times

-

This value indicates the number of times of engine on/off after the latest DTC detection.

PS Assist Signal

Power steering assist signal/

ON or OFF

OFF

The engine is not running.

ON

The engine is running.

The Number of DTCs

Number of detected DTCs when freeze frame data stored/

Min.: 0

Max.: 255

0 to 255

-

2. CONTROL HISTORY (DATA LIST)

EMPS

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Motor Overheat Record

Continuous overheat prevention control record/

Unrec or Rec

Unrec

-

Motor Lo Power Record

PIG power source voltage drop record/

Unrec or Rec

Unrec

-

Eng Rev Inter Record

Record of engine speed interruption/

Unrec or Rec

Unrec

-

Str Angle Inter Record

Record of steering sensor signal interruption occurrence display/

Unrec or Rec

Unrec

-

Spd Sig Invalid Record

Record of vehicle speed signal invalid/

Unrec or Rec

Unrec

-

Battery Voltage Lo Record

Battery voltage reduction history/

Min.: 0 times, Max.: 65535 times

0 to 65535

-

HINT:

  • The amount of power assist may be decreased to prevent the motor and ECUs from overheating if the steering wheel is continuously turned when the vehicle is either stopped or driven at a low speed, or if the steering wheel is kept at either full lock position for a long time. In such cases, the amount of power assist returns to normal if the steering wheel is not turned for approximately 10 minutes with the engine idling.
  • If the battery is not sufficiently charged or the voltage decreases temporarily, the amount of power assist will be reduced and the EPS (P/S) warning light will come on. In such cases, the amount of power assist returns normal when the battery voltage recovers.
  • When any value other than 0 is displayed for the "battery voltage reduction history", inspect the charging system (See page for 2GR-FE or
    for 1AR-FE).

Freeze Frame Data
FREEZE FRAME DATA 1. FREEZE FRAME DATA NOTICE: Freeze frame data values will vary depending on the measurement conditions, surroundings, or vehicle conditions. For this reason, there ma ...

Fail-safe Chart
FAIL-SAFE CHART If a problem occurs in the power steering system, the power steering assist will be stopped or the amount of power assist will be decreased to protect the system. Power Steering Sy ...

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