POWER STEERING SYSTEM (for 2AR without Wireless Door Lock) DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    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.

    Note

    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.


    1. Turn the ignition switch off.

    2. Connect the Techstream to the DLC3.

    3. Turn the ignition switch to ON.

    4. Turn the Techstream on.

    5. Enter the following menus: Chassis / EMPS / Data List.

    6. 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.: 0.0 km/h (0.0mph)

    Max.: 300.0 km/h (186.4 mph)

    		 0 km/h (0 mph) Engine running and vehicle stopped
    No significant fluctuation Engine running and vehicle driven at constant speed
    Engine Revolution

    Engine speed/

    Min.: 0 rpm

    Max.: 12800 rpm

    		 No significant fluctuation Engine running at a constant speed
    Motor Actual Current

    Current to motor/

    Min.: -327.68 A

    Max.: 327.67 A

    Value changes in proportion to steering effort

    -The value increases when turning right and decreases when turning left

    		 Engine running and steering wheel being turned
    Command Value Current

    Requested current to motor/

    Min.: -327.68 A

    Max.: 327.67 A

    Value changes in proportion to steering effort

    -The value increases when turning right and decreases when turning left

    		 Engine running and steering wheel being turned
    Thermistor Temperature

    ECU substrate temperature/

    Min.: -50.0°C (-58.0°F)

    Max.: 150.0°C (302.0°F)

    		 -50 to 150°C (-58 to 302°F) -
    PIG Power Supply

    Power source voltage to activate motor/

    Min.: 0.0000 V

    Max.: 20.1531 V

    		 9 to 16 V Always
    IG Power Supply

    ECU power source voltage/

    Min.: 0.0000 V

    Max.: 20.1531 V

    		 9 to 16 V Ignition switch ON
    Steering Wheel Torque

    Steering wheel torque/

    Min.: -327.68 Nm

    Max.: 7.00 Nm

    		 Value changes in proportion to steering effort Engine running and steering wheel being turned
    Torque Sensor 1 Output

    Torque sensor 1 output value/

    Min.: 0.0000 V

    Max.: 4.9725 V

    		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
    2.5 to 3.8 V Engine running and steering wheel being turned to right with vehicle stopped
    1.2 to 2.5 V Engine running and steering wheel being turned to left with vehicle stopped
    Torque Sensor 2 Output

    Torque sensor 2 output value/

    Min.: 0.0000 V

    Max.: 4.9725 V

    		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
    1.2 to 2.5 V Engine running and steering wheel being turned to right with vehicle stopped
    2.5 to 3.8 V Engine running and steering wheel being turned to left with vehicle stopped
    TRQ1 Zero Point Value

    Zero point value of torque sensor 1/

    Min.: 0.0000 V

    Max.: 4.9725 V

    		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
    TRQ2 Zero Point Value

    Zero point value of torque sensor 2/

    Min.: 0.0000 V

    Max.: 4.9725 V

    		 2.3 to 2.7 V Engine running and steering wheel not being turned (without load)
    Motor Terminal Volt(+)

    Motor terminal M1 voltage/

    Min.: 0.0 V

    Max.: 25.5 V

    		 9 to 16 V Engine running and steering wheel being turned to right
    Below 1 V Engine running and steering wheel being turned to left
    Motor Terminal Volt(-)

    Motor terminal M2 voltage/

    Min.: 0.0 V

    Max.: 25.5 V

    		 Below 1 V Engine running and steering wheel being turned to right
    9 to 16 V Engine running and steering wheel turned to left
    IG ON/OFF Times

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

    Min.: 0 time

    Max.: 65535 times

    		 - This value indicates the number of times of IG ON/OFF after the latest DTC detection.
    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 ignition switch ON signal interruption/

    Unrec or Rec

    		 Unrec -
    Spd Sig Invalid Record

    Vehicle speed signal invalid record/

    Unrec or Rec

    		 Unrec -
    Battery Voltage Lo Record

    Battery voltage reduction history/

    Min.: 0 times, Max.: 65535 times

    		 0 to 65535 -
    The Number of DTCs

    Number of detected DTCs when freeze frame data stored/

    Min.: 0

    Max.: 255

    		 0 to 255 -